STATE STANDARD

USSR UNION

ENAMEL EP-140

The semi-finished enamel product is packaged in black tin cans (GOST 6128-81) or FS steel flasks (GOST 5799-78).

The transport container must be marked with a danger sign (class 3), classification code 3212 (GOST 19433-88) and a handling sign “Keep away from heat” (GOST 14192-77). Serial number UN-1263.

5 3. Transportation and storage - according to GOST 9980.5-86.

Semi-finished enamel should be stored at a temperature not exceeding 30 °C.

6. MANUFACTURER WARRANTY

6.1. The manufacturer guarantees compliance of EP-140 enamels with the requirements of this standard, subject to the conditions of transportation and storage.

6.2. Guarantee period storage of semi-finished enamel - 12 months from the date of manufacture.

Sec. 5, 6.

APPLICATION

Information

Application. (Introduced additionally, Amendment No. 1).

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the USSR Ministry of Chemical Industry

DEVELOPERS

L. P. Lavrishchev, Ph.D. tech. sciences; M. I. Karyakina, Dr. Chem.. sciences; N. B. Gurova (topic leader); V. V. Fiti-leva

2. APPROVED AND ENTERED INTO EFFECT by the Resolution State Committee USSR according to standards From 04/27/81 No. 2116

3 PERIODICITY OF INSPECTIONS - 5 years

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

5. The validity period was removed by Decree of the State Standard of the USSR dated September 30, 1991 No. 1577

6. LERE EDITION (August 1993) with Amendments L 1, 2, approved in November 1986, September 1991 (ICC 2-87, 12-91)

Editor L. I. Nakhimova Technical editor V. I. Prusakova Proofreader V. S. Chernaya

Delivered ft set 09/28/93. Go to the oven. 10.20.93. Uel. evening d 0.93. Uel. cr.-ott. 0.93.

Medical student l. 0.80, Tier. 1002 visas. S 7E4

Order "Badge of Honor" Publishing house of standards. 107076. Moscow, Kolodezny per.. 14. Tnya, “Moscow printed.” Moscow, Lyalin lane, 6. Zak. 488

The correspondence of the names of colors of EP-140 enamels according to GOST 24709-81 and GOST 24709-81 with change No. 1 is given in the reference appendix.

1.4. Enamels of all colors, except silver, are supplied complete in the form of two components: semi-finished enamel of the corresponding color and hardener No. 2.

By agreement with the consumer, it is possible to supply semi-finished enamel EP-140 without a hardener.

The components are mixed by the consumer immediately before use, while for enamels of yellow, dark red, protective and black colors, take 70 parts of semi-finished enamel 30 parts of hardener No. 2 by weight, for other colors - 75 parts of semi-finished enamel 25 parts of hardener No. 2 by weight.

1.5. Silver-colored enamel EP-140 is supplied complete in the form of three components: semi-finished enamel, hardener No. 4 and aluminum powder PAP-2 (GOST 5494-71).

By agreement with the consumer, it is possible to supply semi-q>a6pHKaTa enamel EP-140 without a hardener.

The component is mixed by the consumer immediately before use, with 70 parts of semi-finished enamel

GOST 24709-81 S. 3

Take 30 parts of hardener No. 4 and 11 parts of aluminum powder by weight.

1 6. Dilution of EP-140 enamels to a working viscosity of 12-44 s using a VZ-246 type viscometer with a nozzle diameter of 4 mm (or VZ-4) at an enamel temperature (20.0±0.5) °C is carried out with a solvent of grade R -5A (GOST 7827-74) or a mixture of solvents consisting of acetone (GOST 2768-84), ethylcellosolve (GOST 8313-88) and xylene (GOST 9949-76, GOST 9410-78), taken by weight 30:30: 40 respectively.

1.7. EP-140 enamels must comply with the requirements and standards specified in table. 2.

Continuation

Indicator name

Test method

2. External

type of coating

After drying, the coating should be od-- with azdail, Seg >

foreign inclusions [Small shagreen is allowed. For enamels yellow, dark

Brown, black, blue and dark red colors allow minor pockmarks

3. Conditional viscosity according to _ semi-finished enamel according to ^ is _ koznmeter type VZ-24§ with a nozzle diameter of 4 mm (or VZ-4) at temperature ^ xy. re (20.0+0.5) °C, s

4. Mass fraction of volatile substances, %, in the enamel product:

silver color black color dark red D^ et yellow, blue c*^ tov bluish-gray, g0. blue, light gray 500, light gray $g3 (gray, ivory ’ white flowers dark green, .

many colors

orange, dark brown, dark gray! OG0 colors

light tobacco, ta. bathhouse, light-back| IT. different colors 5 Degree of grinding p0. semi-finished enamel (except silver), microns, no more than 6. Drying time to degree 3, hours, no more:

at temperature>level e

and small rash

at temperature>level e

Continuation of the table. 2

Notes

1 It is allowed to increase the standard viscosity of semi-finished enamel during storage (by no more than 20%), if the enamel diluted to working viscosity meets the requirements of this standard.

2 standard for the indicator “Mass fraction of non-volatile substances in semi-finished enamel” is not rejected until 01 01 94 The definition is required.

3 The standard for the indicator “Coating hardness according to a pendulum device type TML (pendulum A)” is not rejected until 01 01 94 Definition is required

4 The standard for the indicator “Coating hardness using a pendulum device type M-3” is valid until 01/01/94.

5 The standard for the indicator “Opacity” is not rejected until 01/01/94 The definition is mandatory.

1 4-1 7. (Changed edition, Rev. L 2).

2. SAFETY REQUIREMENTS

2.1. EP-140 enamel is a toxic and fire hazardous material, which is due to the properties of the solvents included in its composition and used for dilution, as well as the properties of hardeners No. 2 and No. 4 used for its hardening (Table 3).

2.2. Epoxy resin, which is part of semi-finished enamel, can cause skin diseases.

Solvent vapors have an irritating effect on the mucous membrane of the eyes and upper respiratory tract, may cause dizziness and headaches.

2.3. During the production and use of EP-140 enamels, the requirements of sanitary and fire safety according to GOST 12.3.005-75.

2.4. All work related to the production and use of enamels must be carried out in workshops equipped supply and exhaust ventilation and fire-fighting means in accordance with GOST 12.1.005-88.

2.5. Persons associated with the production and use of EP-140 enamels must be provided with funds personal protection(special clothing, safety glasses, apron, rubber gloves, protective ointments and pastes) that meet the requirements of GOST 12.4.011-89.

2.6* Production of EP-140 enamels must comply general rules explosion safety for explosion and fire hazardous chemical, petrochemical and oil refining industries, approved by the USSR State Mining and Technical Supervision on 09/06/88.

2.7. Fire extinguishing agents: sand, felt, fire extinguishers of the OP and OU brands, chemical or air-mechanical foam from stationary installations.

2.8. Monitoring compliance with maximum permissible emissions (MPE) is carried out in accordance with GOST 17.2.3.02-78. Waste disposal is carried out in accordance with sanitary rules procedure for the accumulation, transportation, neutralization and disposal of toxic industrial waste.

3. ACCEPTANCE

3.2. The need to conduct tests according to the recommended indicators of table. 2 (clauses 10, 11" 12, 13) are established by the manufacturer and the consumer when concluding an agreement for the supply of products.

3.3. Every hundredth batch is subjected to periodic testing for compliance with all requirements and standards of this standard.

3.4. If you receive unsatisfactory results periodic testing the manufacturer tests each batch until satisfactory test results are obtained in at least three batches in a row.

Sec. 2, 3. (Changed edition, Amendment No. 2).

4. TEST METHODS

4.2. Preparing for the test

Conditional viscosity, mass fraction of non-volatile substances and the degree of grinding are determined in the semi-finished enamel product.

To determine other indicators, the enamel is prepared by thoroughly mixing the semi-finished enamel of the corresponding color with the components specified in paragraphs. 1.4 or 1.5, diluted to working viscosity according to clause 1.6 and applied with a paint sprayer to plates prepared in accordance with GOST 8832-76, section. 3.

Before application, the finished enamel is kept in a closed container for 30 minutes.

Color, appearance coating, time and degree of drying, elasticity of the coating when bending, resistance to static effects of water, oil and gasoline (nefras) are determined on plates made of black tin (GOST 13345-85) measuring 20X150 mm (when determining elasticity when bending) and 70X150 mm ( when determining other indicators) with a thickness of 0.25-0.32 mm.

The hiding power of the enamel and the hardness of the coating are determined on glass for photographic plates measuring 9x12-1.2 (TU 6-43-0205133-03-91).

The strength of the coating upon impact and heat resistance are determined on plates made of steel grades 08 kp or 08 ps (GOST 16523-89) with a size of 70X150 mm and a thickness of 0.8-1.0 mm.

To determine color, appearance and hiding power, enamel is applied until the surface to be painted is completely covered.

To determine the time and degree of drying, hardness, bending elasticity, and resistance of the coating to the static effects of water, oil, gasoline (nephras), the enamel is applied in one layer.

To determine the strength of the coating upon impact and heat resistance, the enamel is applied in two layers.

Before hot drying, the plates are kept at a temperature of (20±2) °C for 30 minutes.

The single-layer coating is dried at a temperature of (90±2) 'C for 2 hours. The thickness of the single-layer coating should be 20-25 microns.

With a two-layer coating, each layer is dried at a temperature of (90±2) °C for 2 hours. The thickness of the two-layer coating should be 40-50 microns.

4.1, 4.2. (Changed edition, Amendment No. 2).

4.3. The color and appearance of the dried enamel film is determined visually in diffuse daylight.

The color control of the enamel film is carried out by comparing the color sample prepared for testing with the corresponding samples of the standard card index or with approved samples of EP-140 enamel color.

(Changed edition, Amendment No. 1),

4.3a. (Excluded, Amendment 2).

4.4. The mass fraction of non-volatile substances is determined according to GOST 17537-72. Drying of a sample weighing (2.0±0.2) g is carried out in drying cabinet at a temperature of (100±2) °C for 2 hours.

(Changed edition, Rev. M 2).

4.6. The resistance of the film to the static effects of water is determined according to GOST 9.403-80.

Before inspection, the samples are kept in air for 2 hours at a temperature of (20±2) °C.

(Changed edition, Amendment No. 1).

4.7. The resistance of the film to the static effects of oil and gasoline (nephras) is determined according to GOST 9.403-80.

For testing, aviation gasoline in accordance with GOST 1012-72 or nephrases (S2-80/120 and SZ-80/120) in accordance with TU 38.401 - 67-108-92 and oil in accordance with GOST 21743-76 or GOST 982-80 are used.

After testing in gasoline (nephras), the plates are dried with filter paper.

After removing the oil and gasoline (nephras), the plates are kept in air for 1 hour and inspected.

The film must be unchanged.

(Changed edition, Amendment No. 2).

4.8. To determine the heat resistance of silver-colored enamel ZP-140, plates with dried film are placed in a thermostat at a temperature of (85 ± 5) ° C and the temperature is gradually increased to (250 ± 5) ° C.

After holding at (250±5) °C for 3 hours, the plates are removed, cooled to a temperature of (20±2) °C and a visual inspection is carried out.

The film must be unchanged. Color change is allowed.

(Changed edition, Rev. Lk 1, 2).

4.9. Determining the shelf life of enamel

Hardener No. 2 or No. 4 according to paragraphs is added to 100 g of the semi-finished enamel product. 1.4 or 1.5 and mix thoroughly until a homogeneous mass is obtained. Then the enamel is diluted to a viscosity of 12-14 s in accordance with clause 1.6 and left in a jar with a tightly closed lid for 6 hours at a temperature of (20±2) °C. After the specified time, the enamel is thoroughly mixed again and the viscosity, color and appearance of the film are checked.

In this case, the viscosity of the enamel should not differ from the original by more than 3 s, the appearance and color of the film must meet the requirements of this standard.

(Changed edition, Amendment No. 2).

5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE

STATE STANDARD

USSR UNION

ENAMEL EP-140

TECHNICAL CONDITIONS

GOST 24709-81

Official publication

PUBLISHING HOUSE OF STANDARDS Moscow

UDC 667.6:678.686:006.354 Group L24

STATE STANDARD OF THE USSR UNION

ENAMEL EP-140

Specifications

Enamels ZP-140-Specifications

Date of introduction 0f.07.82

This standard applies to EP-140 enamels, which are a suspension of pigments and fillers in a solution of epoxy resin in a mixture organic solvents with the addition of a hardener.

Enamels are intended for painting pre-primed surfaces made of steel, magnesium, aluminum and titanium alloys, as well as copper and its alloys.

EP-140 enamels are intended for painting products operated under B2 conditions in accordance with GOST 9 104-79.

Requirements of the introductory part, section. 1 (clauses 1.1 -1.6, 1.7 - in terms of clauses 1-9 of table 2), section. 2-6 of the standard are mandatory, the requirements of clause 1.7 in terms of clauses. 10-13 tables 2 - recommended.

1. TECHNICAL REQUIREMENTS

1.1. EP-140 enamels must be manufactured in accordance with the requirements of this standard for the recipe and technological regulations, approved in accordance with the established procedure.

1.2. Enamels are applied by pneumatic spraying, pouring or brushing.

1.3. Enamels EP-140 must be produced following colors, with the corresponding OKP codes indicated in table. 1.

Official publication

Reprint of the decision

Standards Publishing House, 1981 Standards Publishing House, 1993 Reprint with changes

Table I

The correspondence of the names of colors of EP-140 enamels according to GOST 24709-81 and GOST 24709-81 with change No. 1 is given in the reference appendix.

1.4. Enamels of all colors, except silver, are supplied complete in the form of two components: semi-finished enamel of the corresponding color and hardener No. 2.

By agreement with the consumer, it is possible to supply semi-finished enamel EP-140 without a hardener.

The components are mixed by the consumer immediately before use, while for enamels of yellow, dark red, protective and black colors, take 70 parts of semi-finished enamel 30 parts of hardener No. 2 by weight, for other colors - 75 parts of semi-finished enamel 25 parts of hardener No. 2 by weight mass.

1.5. Silver-colored enamel EP-140 is supplied complete in the form of three components: semi-finished enamel, hardener No. 4 and aluminum powder PAP-2 (GOST 5494-71).

By agreement with the consumer, it is possible to supply semi-q>a6pHKaTa enamel EP-140 without a hardener.

The component is mixed by the consumer immediately before use, with 70 parts of semi-finished enamel

Take 30 parts of hardener No. 4 and 11 parts of aluminum powder by weight.

1 6. Dilution of EP-140 enamels to a working viscosity of 12-14 s using a VZ-246 type viscometer with a nozzle diameter of 4 mm (or VZ-4) at an enamel temperature (20.0±0.5) °C is carried out with a solvent of grade R -5A (GOST 7827-74) or a mixture of solvents consisting of acetone (GOST 2768-84), ethyl cellulose (GOST 8313-88) and xylene (GOST 9949-76, GOST 9410-78), taken by weight 30:30:40 respectively.

1.7. EP-140 enamels must comply with the requirements and standards specified in table. 2.

table 2

Name of indicators

Continuation

The method has not been tested

2. External

type of cover

After drying

the cover must be the same* I

g h vddodod, Seg i

foreign inclusions; d A small amount of shagreen is allowed. For enamels yellow, dark

Brown, black, blue and dark red colors allow minor pockmarks

3, Conditional viscosity of semi-finished enamel using a viscometer type VZ-24§ with a nozzle diameter of 4 mm (or VZ-4) at temperature x y. re (20.0+0.5) °C, s

4. Mass fraction of volatile substances, %, in the enamel product;

silver color black color dark red D^eta yellow, blue C^tov bluish-gray, blue, light gray 500, light gray $g3 (gray, ivory, white colors t*sho-green. ,

many colors"

orange, dark brown, dark gray OG0 colors

light tobacco, tobacco, light khaki colors

5 Degree of grinding of semi-finished enamel (Rome silver), microns, no more than b. Drying time d 0 degree 3, hours, no more:

temperature

at temperature>level e

small rash

37 ±3 40±3 43±3 48 ±3

According to GOST 8420-74

According to GOST 17537-72 and clause 4.4 of this standard

According to GOST 6589-74 According to GOST 19007-73

GOST 24709-81 C 5

Continuation of the table. 2

Notes

1 It is allowed to increase the standard viscosity of semi-finished enamel during storage (by no more than 20%), if the enamel diluted to working viscosity meets the requirements of this standard.

2 lorma for the indicator “Mass fraction of non-volatile substances in semi-finished enamel” is not rejected until 01 01 94 Determination is required.

3 The standard for the indicator “Coating hardness according to a pendulum device type TML (pendulum A)” is not rejected until 01 01 94 Definition is required

4 The standard for the indicator “Coating hardness using a pendulum device type M-3” is valid until 03/01/94.

5 The standard for the indicator “Opacity” is not rejected until 01/01/94 The definition is mandatory.

1 4-1 7. (Changed edition, Rev. L 2).

2. SAFETY REQUIREMENTS

2.1. EP-140 enamel is a toxic and fire hazardous material, which is due to the properties of the solvents included in its composition and used for dilution, as well as the properties of hardeners No. 2 and No. 4 used for its hardening (Table 3).

Table 3

2.2. Epoxy resin, which is part of semi-finished enamel, can cause skin diseases.

Solvent vapors irritate the mucous membrane of the eyes and upper respiratory tract and can cause dizziness and headaches.

2.3. During the production and use of EP-140 enamels, the requirements of sanitary and fire safety rules in accordance with GOST 12.3.005-75 must be observed.

2.4. All work related to the production and use of enamels must be carried out in workshops equipped with supply and exhaust ventilation and fire-fighting equipment in accordance with GOST 12.1.005-88.

2.5. Persons associated with the production and use of EP-140 enamels must be provided with personal protective equipment (special clothing, safety glasses, an apron, rubber gloves, protective ointments and pastes) that meet the requirements of GOST 12.4.011-89.

2.6* Production of EP-140 enamels must comply with the general explosion safety rules for explosion and fire hazardous chemical, petrochemical and oil refining industries, approved by the USSR State Technical Supervision Authority on 09/06/88.

2.7. Fire extinguishing agents: sand, felt, fire extinguishers of the OP and OU brands, chemical or air-mechanical foam from stationary installations.

2.8. Monitoring compliance with maximum permissible emissions (MPE) is carried out in accordance with GOST 17.2.3.02-78. Waste disposal is carried out in accordance with the sanitary rules for the accumulation, transportation, neutralization and disposal of toxic industrial waste.

3. ACCEPTANCE

Z.G Acceptance rules - according to GOST 9980.1-86.

3.2. The need to conduct tests according to the recommended indicators of table. 2 (clauses 10, 11* 12, 13) are established by the manufacturer and the consumer when concluding an agreement for the supply of products.

3.3. Every hundredth batch is subjected to periodic testing for compliance with all requirements and standards of this standard.

3.4. If unsatisfactory results of periodic tests are obtained, the manufacturer checks each batch until satisfactory test results are obtained in a row of at least three batches.

Sec. 2, 3. (Changed edition, Amendment No. 2).

4. TEST METHODS

4.1. Sampling - according to GOST 9980.2-86.

4.2. Preparing for the test

Conditional viscosity, mass fraction of non-volatile substances and the degree of grinding are determined in the semi-finished enamel product.

To determine other indicators, the enamel is prepared by thoroughly mixing the semi-finished enamel of the corresponding color with the components specified in paragraphs. 1.4 or 1.5, diluted to working viscosity according to clause 1.6 and applied with a paint sprayer to plates prepared in accordance with GOST 8832-76, section. 3.

Before application, the finished enamel is kept in a closed container for 30 minutes.

The color, appearance of the coating, time and degree of drying, elasticity of the coating when bending, resistance to the static effects of water, oil and gasoline (nephras) are determined on plates made of black tin (GOST 13345-85) measuring 20X150 mm (when determining elasticity when bending) and 70X150 mm (when determining other indicators) with a thickness of 0.25-0.32 mm.

The hiding power of the enamel and the hardness of the coating are determined on glass for photographic plates measuring 9x12-1.2 (TU 6-43-0205133-03-91).

The strength of the coating upon impact and heat resistance are determined on plates made of steel grades 08 kp or 08 ps (GOST 16523-89) with a size of 70X150 mm and a thickness of 0.8-1.0 mm.

To determine color, appearance and hiding power, enamel is applied until the surface to be painted is completely covered.

To determine the time and degree of drying, hardness, bending elasticity, and resistance of the coating to the static effects of water, oil, gasoline (nephras), the enamel is applied in one layer.

To determine the strength of the coating upon impact and thermal resistance, the enamel is applied in two layers.

Before hot drying, the plates are kept at a temperature of (20±2) °C for 30 minutes.

The single-layer coating is dried at a temperature of (90±2) 'C for 2 hours. The thickness of the single-layer coating should be 20-25 microns.

With a two-layer coating, each layer is dried at a temperature of (90±2) °C for 2 hours. The thickness of the two-layer coating should be 40-50 microns.

4.1, 4.2. (Changed edition, Amendment No. 2).

4.3. The color and appearance of the dried enamel film are determined visually in diffuse daylight.

The color control of the enamel film is carried out by comparing the color sample prepared for testing with the corresponding samples of the standard card index or with approved samples of EP-140 enamel color.

(Changed edition, Amendment No. 1).

4.3a. (Deleted, Amendment No. 2).

4.4. The mass fraction of non-volatile substances is determined according to GOST 17537-72. Drying of a sample weighing (2.0±0.2) g is carried out in a drying cabinet at a temperature of (1<Ю±2) °С в течение 2 ч.

(Changed edition, Rev./A 2).

4.5. (Deleted, Rev. JA 1).

4.6. The resistance of the film to the static effects of water is determined according to GOST 9.403-80.

Before inspection, the samples are kept in air for 2 hours at a temperature of (20±2) °C.

(Changed edition, Amendment No. 1).

4.7. The resistance of the film to the static effects of oil and gasoline (nephras) is determined according to GOST 9.403-80.

For testing, aviation gasoline in accordance with GOST 1012-72 or nephrases (S2-80/120 and SZ-80/120) in accordance with TU 38.401 - 67-108-92 and oil in accordance with GOST 21743-76 or GOST 982-80 are used.

After testing in gasoline (nephras), the plates are dried with filter paper.

After removing the oil and gasoline (nephras), the plates are kept in air for 1 hour and inspected.

The film must be unchanged.

(Changed edition, Amendment No. 2).

4.8. To determine the heat resistance of silver-colored ZP140 enamel, plates with dried film are placed in a thermostat at a temperature of (85±5) °C and the temperature is gradually increased to (250±5) °C.

After holding at (250±5) °C for 3 hours, the plates are removed, cooled to a temperature of (20±2) °C and a visual inspection is carried out.

The film must be unchanged. Color change is allowed.

(Changed edition, Rev. L 1, 2).

4.9. Determining the shelf life of enamel

Hardener No. 2 or No. 4 according to paragraphs is added to 100 g of the semi-finished enamel product. 1.4 or 1.5 and mix thoroughly until a homogeneous mass is obtained. Then the enamel is diluted to a viscosity of 12-14 s in accordance with clause 1.6 and left in a jar with a tightly closed lid for 6 hours at a temperature of (20±2) °C. After the specified time, the enamel is thoroughly mixed again and the viscosity, color and appearance of the film are checked.

In this case, the viscosity of the enamel should not differ from the original by more than 3 s, the appearance and color of the film must meet the requirements of this standard.

(Changed edition, Amendment No. 2).

5. PACKAGING, LABELING, TRANSPORTATION AND STORAGE

5L. Packaging - according to GOST 9980.3-86,

The semi-finished enamel product is packaged in black tin cans (GOST 6128-81) or FS steel flasks (GOST 5799-78).

5.2. Marking - according to GOST 9980.4-86.

The transport container must be marked with a danger sign (class 3), classification code 3212 (GOST 19433-88) and a handling sign “Keep away from heat” (GOST 14192-77). UN serial number is 1263.

5 3. Transportation and storage - according to GOST 9980.5-86.

Semi-finished enamel should be stored at a temperature not exceeding 30 °C.

6.1. The manufacturer guarantees compliance of EP-140 enamels with the requirements of this standard, subject to the conditions of transportation and storage.

6.2. The guaranteed shelf life of semi-finished enamel is 12 months from the date of manufacture.

Sec. 5, 6. (Changed edition, Amendment No. 2).

6. MANUFACTURER WARRANTY

APPLICATION

Information

Correspondence table for color names of EP-140 enamels

GOST 24709-81 with change We 1

GOST 24709-^81

Ivory Blue

Blue 2 Blue 1

Brown

Light gray 583 Dark brown

Application. (Introduced additionally, Amendment No. 1).

INFORMATION DATA

1. DEVELOPED AND INTRODUCED by the USSR Ministry of Chemical Industry

DEVELOPERS

L. P. Lavrishchev, Ph.D. tech. sciences; M. I. Karyakina, Dr.

chem. sciences; N. B. Gurova (topic leader); V. V. Fiti-leva

2. APPROVED AND ENTERED INTO EFFECT by the Resolution

USSR State Committee for Standards From 04/27/81 No. 2116

3 INSPECTION FREQUENCY -5 years

4. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

Continuation

5. The validity period was removed by Decree of the State Standard of the USSR dated September 30, 1991 No. 1577

6. REISSUE (August 1993) with Amendments AB 1, 2, approved in November 1986, September 1991 (ICC 2-87, 12-91)

Editor L. Ya. Nakhimova Technical editor V. Ya. Lrrsakova Proofreader V. S. Chernaya

Delivered to one side 00/98/93. Go to the oven. 10.20.93. Uel. oven l 0.93. Uel. cr.-ott. 0.93.

Academician-zd. l. 0, 3D Tier. 1002 copies S 7E4

Order "Badge of Honor" Publishing house of standards, 107076. Moscow, Kolodezny per.. I. Tnya. "Moscow Printer". Moscow. Lyalin ler." 6. Zak. 488

Enamels EP-140 They are a suspension of pigments and fillers in a solution of epoxy resin in a mixture of organic solvents with the addition of a hardener. Enamels EP-140 have high anti-corrosion properties, weather resistance, resistance to water, mineral oils, gasoline, and detergents. The silver-colored enamel film has increased heat resistance.

Purpose of enamel EP-140.

Epoxy enamels EP-140 are intended for painting surfaces made of steel, magnesium, aluminum and titanium alloys, as well as copper and its alloys, pre-primed with primers, AK-069, (with aluminum powder). It is possible to use enamel without prior priming on ferrous metals. Allowed application of enamel EP-140 on the surface of products made of phenolic, acrylic, polystyrene, epoxy and some other plastics.

Application of EP-140 enamel.

Before use, the enamel is thoroughly mixed until uniform throughout the entire volume of the container. If necessary EP-140 enamel should be diluted to working viscosity solvent R-5A or a mixture of solvents consisting of acetone, ethylcelosolve, xylene, taken in a ratio of 30:30:40 by weight.

The metal surface must be cleaned from rust, scale, metal oxides, etc. to degree 2 according to GOST 9.402-2004 (the surface must have a uniform roughness, metallic luster, a darker shade of the metal is allowed in areas where there was scale) and degreased to degree 1 according to GOST 9.402-2004 (no traces of grease on the filter paper after wiping the surface ). Cleaning is carried out by sandblasting or shot blasting; cleaning with cord brushes is allowed. To degrease, the metal surface is wiped with a rag soaked in white spirit and a dry rag; it is not allowed to use volatile solvents for degreasing. If painting is done immediately after shot blasting (sandblasting), degreasing the surface may not be necessary, but it is still recommended to degrease especially contaminated areas first.

Enamels of all colors, except silver, are supplied complete in the form of two components: semi-finished enamel of the corresponding color and hardener No. 2. Enamel components EP-140 mixed by the consumer immediately before use (mix for at least 10 minutes), while for enamels of yellow, dark red, protective and black colors, take 70 parts of semi-finished enamel 30 parts of hardener No. 2 by weight, for other colors - 75 parts of semi-finished enamel 25 parts of hardener No. 2.
Enamel EP-140 silver color is supplied complete in the form of three components: semi-finished enamel, hardener No. 4, aluminum powder PAP-2. The components are mixed immediately before use, with 30 parts of hardener No. 4 and 11 parts of aluminum powder per 70 parts of semi-finished enamel. The prepared enamel should be used within 6 hours.
Enamel EP-140 applied to the surface by pre-spraying, dipping, pouring or brushing. Consumption for single-layer coating: 70-125 g/m2 (depending on color). The enamel is applied at temperatures from +10°C to + 30°C and relative humidity no more than 80%
Subject to compliance with the requirements for surface preparation, application of materials, drying of coatings, in accordance with regulatory and reference literature, it is allowed to use coatings in areas with a temperate climate, tropical climate, cold climate, except for the macroclimatic region with a very cold climate with an average minimum temperature below minus 60 °C.

The material is flammable! Do not work near open fire sources. When carrying out painting work, as well as after its completion, it is necessary to thoroughly ventilate the room. For protection, use a respirator and rubber gloves.
Avoid contact with respiratory and digestive organs. If the material gets on your skin, wash it with warm water and soap.
The enamel is stored in a tightly closed container, away from heating devices, electrical devices, food products, in places inaccessible to children, protected from moisture and direct sunlight.
Guaranteed shelf life of EP-140 enamel- 12 months from the date of manufacture

Product Description

Type: Epoxy enamel is a two-component system consisting of semi-finished enamel and hardener. Semi-finished enamel is a suspension of pigments and fillers in a solution of epoxy resin in a mixture of organic solvents with the addition of a hardener.

Application area: The enamel is intended for painting pre-primed surfaces made of steel, magnesium, aluminum and titanium alloys, as well as copper and its alloys. Can be painted with enamel without priming.

Specifications:

Advantages: The enamel forms a coating that combines the high adhesive and physical-mechanical properties of epoxy enamels. An effective combination of high-quality anti-corrosion pigments and functional additives creates a high degree of metal protection from corrosion, and also ensures water, oil and petrol resistance of the coating.

The enamel coating is resistant to temperature changes from minus 60 °C to plus 90 °C.

EP-140 silver enamel is characterized by high heat resistance (at least 3 hours at a temperature of 250 °C). Category B2 indicates that this paint and varnish material can be used in all climatic zones.

Surface preparation:

The preparation of the surface of the product for painting with enamel is carried out in accordance with the requirements of technical regulations for the product, GOST 9.402 or STB ISO 12944-4.

Oil, grease, marking paint, dirt and other substances, such as mineral contaminants, water-soluble salts that affect the quality of surface preparation, must be removed from the metal surface. It is necessary to remove notches, burrs, welding spatter, round off sharp edges, corners, teeth and welding seams. Then the surface must be thoroughly cleaned of rust, scale and other contaminants, dust-free, degreased and dried. It is most necessary to clean the surface in the area of ​​welds up to 3 cm wide from flux residues, alkali slags and oxides formed during welding.

To improve the protective properties, it is recommended to pre-clean the surface by sandblasting or shot blasting to the degree of oxide removal 1 - 2 according to GOST 9.402.

Coating: The enamel is applied using pneumatic and electrostatic spraying methods. Application by brush or roller is allowed.

Before use, the semi-finished enamel is mixed with a hardener, diluted to a working viscosity of 12-14 with solvent R-5 (GOST 7827) or a mixture of solvents - xylene: acetone: ethyl cellosolve in a ratio of 40: 30: 30. Maintain for 30 minutes in a closed container and Apply by pneumatic spray, pour or brush.

The enamel is applied at a temperature not lower than 15 ° C and a relative air humidity of not more than 65%. The drying time of a single-layer enamel coating with a thickness of 20 - 25 microns at a temperature of (90 ± 2) °C is no more than 2 hours, at a temperature of (20 ± 2) °C no more than 6 hours.

Consumption dried single-layer enamel coating thickness
20 - 25 microns is 75 - 130 g/m² without taking into account preparation, complexity of the surface to be painted, color and other factors.

Precautionary measures: When carrying out painting work, as well as after its completion, it is necessary to ventilate the room; use personal protective equipment (overall clothing, safety glasses, rubber gloves).

Storage: Store the semi-finished enamel product in a tightly closed container, protecting it from moisture and direct sunlight. Keep away from fire! The formation of sediment and delamination during storage of semi-finished enamel is allowed if, after thorough mixing and addition of a hardener, the enamel complies with the requirements of TNLA.

GOST 24709-81

TU 38.401-67-108-92

TU 6-43-0205133-03-91

5. The validity period was removed by Decree of the USSR State Standard of 09.30.91 N 1577

6. REISSUE (August 1993) with Amendments No. 1, 2, approved in November 1986, September 1991 (IUS 2-87, 12-91)


This standard applies to EP-140 enamels, which are a suspension of pigments and fillers in a solution of epoxy resin in a mixture of organic solvents with the addition of a hardener.

Enamels are intended for painting pre-primed surfaces made of steel, magnesium, aluminum and titanium alloys, as well as copper and its alloys.

EP-140 enamels are intended for painting products operated in B2 conditions according to GOST 9.104-79.

The requirements of the introductory part, section 1 (clauses 1.1-1.6, 1.7 - in terms of clauses 1-9 of table 2), sections 2-6 of the standard are mandatory, the requirements of clause 1.7 in terms of clauses 10-13 of table. 2 - recommended.

1. TECHNICAL REQUIREMENTS

1. TECHNICAL REQUIREMENTS

1.1. EP-140 enamels must be manufactured in accordance with the requirements of this standard according to the recipe and technological regulations approved in the prescribed manner.

1.2. Enamels are applied by pneumatic spraying, pouring or brushing.

1.3. EP-140 enamels must be produced in the following colors, with the corresponding OKP codes indicated in Table 1.

Table 1

The correspondence of the names of colors of EP-140 enamels according to GOST 24709-81 and GOST 24709-81 with amendment No. 1 is given in the reference appendix.

1.4. Enamels of all colors, except silver, are supplied complete in the form of two components: semi-finished enamel of the corresponding color and hardener N 2.



The components are mixed by the consumer immediately before use, while for enamels of yellow, dark red, protective and black colors, take 70 parts of semi-finished enamel 30 parts of hardener N 2 by weight, for other colors - 75 parts of semi-finished enamel 25 parts of hardener N 2 by weight mass.

1.5. Silver-colored enamel EP-140 is supplied complete in the form of three components: semi-finished enamel, hardener N 4 and aluminum powder PAP-2 (GOST 5494-71).

By agreement with the consumer, it is possible to supply semi-finished enamel EP-140 without a hardener.

The components are mixed by the consumer immediately before use, with 30 parts of hardener N 4 and 11 parts of aluminum powder by weight taken for 70 parts of semi-finished enamel.

1.6. Dilution of EP-140 enamels to a working viscosity of 12-14 s using a VZ-246 type viscometer with a nozzle diameter of 4 mm (or VZ-4) at an enamel temperature of (20.0±0.5) °C is carried out with a R-5A solvent ( GOST 7827-74) or a mixture of solvents consisting of acetone (GOST 2768-84), ethylcellosolve (GOST 8313-88) and xylene (GOST 9949-76, GOST 9410-78), taken by weight 30:30:40, respectively.

1.7. EP-140 enamels must comply with the requirements and standards specified in Table 2.

table 2

Notes:

1. It is allowed to increase the standard viscosity of semi-finished enamel during storage (by no more than 20%), if the enamel diluted to working viscosity meets the requirements of this standard.

2. The standard for the indicator “Mass fraction of non-volatile substances in semi-finished enamel” is not rejected until 01/01/94. Definition is required.

3. The standard for the indicator “Coating hardness using a pendulum device type TML (pendulum A)” is not rejected until 01/01/94. Definition is required.

4. The standard for the indicator “Coating hardness using a pendulum device type M-3” is valid until 01/01/94.

5. The standard for the indicator “Having ability” is not rejected until 01/01/94. Definition is required.

1.4-1.7. (Changed edition, Amendment No. 2).

2. SAFETY REQUIREMENTS

2.1. EP-140 enamel is a toxic and fire hazardous material, which is due to the properties of the solvents included in its composition and used for dilution, as well as the properties of hardeners N 2 and N 4 used for its hardening (Table 3).

Table 3

2.2. Epoxy resin, which is part of semi-finished enamel, can cause skin diseases.

Solvent vapors irritate the mucous membrane of the eyes and upper respiratory tract and can cause dizziness and headaches.

2.3. During the production and use of EP-140 enamels, the requirements of sanitary and fire safety rules in accordance with GOST 12.3.005-75 must be observed.

2.4. All work related to the production and use of enamels must be carried out in workshops equipped with supply and exhaust ventilation and fire protection equipment in accordance with GOST 12.1.005-88.

2.5. Persons associated with the production and use of EP-140 enamels must be provided with personal protective equipment (special clothing, safety glasses, an apron, rubber gloves, protective ointments and pastes) that meet the requirements of GOST 12.4.011-89.

2.6. The production of EP-140 enamels must comply with the general explosion safety rules for explosion and fire hazardous, chemical, petrochemical and oil refining industries, approved by the USSR State Mining and Technical Supervision on 09/06/88.

2.7. Fire extinguishing agents: sand, felt, fire extinguishers of the OP and OU brands, chemical or air-mechanical foam from stationary installations.

2.8. Monitoring compliance with maximum permissible emissions (MPE) is carried out in accordance with GOST 17.2.3.02-78. Waste disposal is carried out in accordance with the sanitary rules for the accumulation, transportation, neutralization and disposal of toxic industrial waste.

3. ACCEPTANCE

3.1. Acceptance rules - according to GOST 9980.1-86.

3.2. The need for testing according to the recommended indicators of Table 2 (clauses 10, 11, 12, 13) is established by the manufacturer and the consumer when concluding a contract for the supply of products.

3.3. Every hundredth batch is subjected to periodic testing for compliance with all requirements and standards of this standard.

3.4. If unsatisfactory results of periodic tests are obtained, the manufacturer checks each batch until satisfactory test results are obtained in a row of at least three batches.

Section 2, 3. (Changed edition, Amendment No. 2).

4. TEST METHODS

4.1. Sampling - according to GOST 9980.2-86.

4.2. Preparing for the test

Conditional viscosity, mass fraction of non-volatile substances and the degree of grinding are determined in the semi-finished enamel product.

To determine other indicators, the enamel is prepared by thoroughly mixing the semi-finished enamel of the corresponding color with the components specified in paragraphs 1.4 or 1.5, diluted to the working viscosity according to paragraph 1.6 and applied with a paint sprayer to plates prepared in accordance with GOST 8832-76, section 3.

Before application, the finished enamel is kept in a closed container for 30 minutes.

The color, appearance of the coating, time and degree of drying, elasticity of the coating when bending, resistance to the static effects of water, oil and gasoline (nephras) are determined on plates made of black tin (GOST 13345-85) measuring 20x150 mm (when determining elasticity when bending) and 70x150 mm (when determining other indicators) with a thickness of 0.25-0.32 mm.

The hiding power of the enamel and the hardness of the coating are determined on glass for photographic plates measuring 9x12-1.2 (TU 6-43-0205133-03-91).

The strength of the coating upon impact and heat resistance are determined on plates made of steel grades 08 kp or 08 ps (GOST 16523-89) with dimensions of 70x150 mm and a thickness of 0.8-1.0 mm.

To determine color, appearance and hiding power, enamel is applied until the surface to be painted is completely covered.

To determine the time and degree of drying, hardness, bending elasticity, and resistance of the coating to the static effects of water, oil, gasoline (nephras), the enamel is applied in one layer.

To determine the strength of the coating upon impact and heat resistance, the enamel is applied in two layers.

Before hot drying, the plates are kept at a temperature of (20±2) °C for 30 minutes.

The single-layer coating is dried at a temperature of (90±2) °C for 2 hours. The thickness of the single-layer coating should be 20-25 microns.

With a two-layer coating, each layer is dried at a temperature of (90±2) °C for 2 hours. The thickness of the two-layer coating should be 40-50 microns.

4.1, 4.2. (Changed edition, Amendment No. 2).

4.3. The color and appearance of the dried enamel film is determined visually in diffuse daylight.

The color control of the enamel film is carried out by comparing the color sample prepared for testing with the corresponding samples of the standard card index or with approved samples of EP-140 enamel color.

(Changed edition, Amendment No. 1).

4.For. (Deleted, Amendment No. 2).

4.4. The mass fraction of non-volatile substances is determined according to GOST 17537-72. Drying of a sample weighing (2.0±0.2) g is carried out in a drying cabinet at a temperature of (100±2) °C for 2 hours.

(Changed edition, Amendment No. 2).

4.5. (Deleted, Amendment No. 1).

4.6. The resistance of the film to the static effects of water is determined according to GOST 9.403-80.

Before inspection, the samples are kept in air for 2 hours at a temperature of (20±2) °C.

The film must be unchanged.

(Changed edition, Amendment No. 1).

4.7. The resistance of the film to the static effects of oil and gasoline (nephras) is determined according to GOST 9.403-80 (Changed edition, Amendment No. 2).

4.8. To determine the heat resistance of silver-colored enamel EP-140, plates with dried film are placed in a thermostat at a temperature of (85±5) °C and the temperature is gradually increased to (250±5) °C.

After holding at (250±5) °C for 3 hours, the plates are removed, cooled to a temperature of (20±2) °C and a visual inspection is carried out.

The film must be unchanged. Color change is allowed.

(Changed edition, Amendment No. 1, 2).

4.9. Determining the shelf life of enamel

To 100 g of semi-finished enamel add hardener N 2 or N 4 according to paragraphs 1.4 or 1.5 and mix thoroughly until a homogeneous mass is obtained. Then the enamel is diluted to a viscosity of 12-14 s in accordance with clause 1.6 and left in a jar with a tightly closed lid for 6 hours at a temperature of (20±2) °C. After the specified time has passed, the enamel is thoroughly mixed again and the viscosity, color and appearance of the film are checked.)

6. MANUFACTURER WARRANTY

6.1. The manufacturer guarantees compliance of EP-140 enamels with the requirements of this standard, subject to the conditions of transportation and storage.

6.2. The guaranteed shelf life of semi-finished enamel is 12 months from the date of manufacture.

Section 5, 6. (Changed edition, Amendment No. 2).

APPENDIX (reference). Correspondence table for color names of EP-140 enamels

APPLICATION
Information

Application. (Introduced additionally, Amendment No. 1).



The text of the document is verified according to:
official publication
M.: Standards Publishing House, 1993