Specifications :
| No | The name of indicators | Requirements TNPA |
| one | The appearance of enamel film | After drying, the film will be uniform, smooth, without foreign inclusions. Allowed small shagren. For enamels of yellow, brown and black, slight pock marks are allowed. |
| 2 | Color enamel film
|
Must match the color scale or approved color reference samples. |
| 2 | Semi-finished enamel by B3 viscometer – 246 with a diameter of 4 mm at a temperature of (20 ± 0.5) ° C, s | 13-18 |
| 3 | Mass fraction of enamel semi-finished product,%, | 37 to 61 depending on color |
| four | Degree of grinding of semi-finished enamel (except silver), micron, not more | 40 |
| five | Drying time to degree 3, h, not more than (20 ± 2) ° С (90 ± 2) ° С |
6 2 |
| 6 | Film hardness by pendulum device type TML (pendulum A), relative units, not less | 0.5 |
| 7 | Bending elasticity of the coating, mm, not more | 2 |
| eight | U-1 device, cm,
colors and colors |
4050 |
| 9 | Coating resistance to static effects at a temperature of (20 ± 2) ° С, h, not less than: water oilsgasoline (nefras – C2-80 / 120) |
2424
24 |
| ten | Thermal resistance of silver enamel coating at (250 ± 5) ° С, h, not less | 3 |
| eleven | Enamel shelf life at temperature (20 ± 2) ° С, h, not less | 6 |
Advantages: Enamel forms of coatings and epoxy enamels. It is a combination of high-quality anti-corrosion, anti-corrosion, and a high-quality anti-corrosion and anti-corrosion / anti-corrosive coating.
The enamel coating is resistant to minus 60 ° C to plus 90 ° C.
EP-140 silver enamel is distinguished by high heat resistance (at least 3 hours at a temperature of 250 ° C). Category B2 indicates where the paint zones are allowed to operate in all climatic zones.
Surface preparation:
The enamel is carried out in accordance with GOST 9.402 or STB ISO 12944-4.
Oil, grease, paint, dirt and other substances, such as mineral contaminants, water-soluble salts, It is necessary to remove incisions, burrs, welding spatters, round sharp edges, teeth and welding seams. It should be thoroughly cleaned, dust-free, degreased and dried. It is the most up to 3 cm wide range of residues from fluxes, alkaline slags and oxides formed during welding.
It is recommended to improve the protective properties of the surface oxides 1 – 2 according to GOST 9.402.
It is recommended to improve the protective properties of the surface oxides 1 – 2 according to GOST 9.402.
Coating: Enamel is applied by pneumatic and electrostatic spraying. Allowed by brush or roller.
If you’re trying to find out how to use it, then you’ll find out how to mix it up with a mixture of solvents – xylene: acetone: ethyl cellosolve in a ratio of 40: 30: 30 Contain for 30 min in a closed container put with a pneumatic dispersion, in bulk or a brush.
Enamel is applied at a temperature not lower than 15 ° С and relative air humidity 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 not more than 2 hours, at a temperature of (20 ± 2) ° C not more than 6 hours.
The consumption of dried single-layer enamel coating with a thickness of 20–25
µm is 75–130 g / m², excluding preparation, surface complexity, color, and other factors.
Precautionary measures: When carrying out painting works, and also after their termination it is necessary to air the room; use personal protective equipment (clothing, goggles, rubber gloves).
Storage: Store prefabricated in direct sunlight. Keep away from fire! After the thorough mixing, the enamel meets the requirements of TNPA.
