Description
Two component thickfilm epoxy primer with high dry residue and good abrasion resistance.
Scope and specifics of application
EPPEX MASTIC NSH primer is a modified mastic forming smooth surface with improved appearance when applied. It is used as a primer or intermediate layer for coating materials based on epoxy and polyurethane having decorative properties in a complex protection system. Due to special additives, the coating is resistant to a wide range of chemicals, oils, gasoline, salt solutions, acids, and alkalis. It is resistant to sea, fresh and polluted water, high humidity, medium and highly aggressive industrial atmosphere.
It is intended for anticorrosive protection of new and repairable metal structures. It is used as a primer or intermediate layer for coating materials based on an epoxy and polyurethane in complex protection systems, as well as an independent coating inside premises or under a roof.
It is used to paint horizontal and vertical surfaces of alluvial and tank equipment, storage tanks for mineral oils, salt solutions, alkalis, petroleum products, tanks, storage facilities, pipes and pipelines, oil and gas pipelines, metal structures, structures and equipment exposed to aggressive gases and vapors at enterprises producing mineral fertilizers, chemical, oil refining and other industries.
Information on the material resistance to various media is available on request.
Main applications: chemical industry, oil and gas industry, power engineering, transport construction.
Instruction for use
Metal surface should be abrasive blasted to grade 1or 2 due to GOST 9.402 (Sa 2^(1/2) or Sa 2 to ISO 8501-1:2007). Cleaned surface must be free of dust and grease.
During refinishing mechanical cleaning is allowed to grade 3 to GOST 9.402-2004 (St 3 or St 2 to ISO8501-1:2007; PSt 3 or PSt 2 to ISO8501-2:1994).
Residual coating thickness should be no more than 200 microns, adhesion no less than 2 MPa to ISO 4624:2002 or no more than 3 points to GOST 15140-78.
Conditions
Basis temperature higher than dew point no less than 3°C.
Ambient temperature from +10°С to +35°C.
Relative air humidity no more 80%.Application
|
Blending |
The product is two component. Component А is a dispersion of pigments and anticorrosion filler in epoxy resin. Component B is a hardener solution. Mix the contents of the containers in the supplied proportions. After mixing, use within the specified pot life. Mixing sequence: The basis (component A) is mixed with a construction mixer. Then mixed hardener (component B) is added to the basis (component A) and thoroughly mixed with a construction mixer. Attention! Careless mixing or incorrect ratio can lead to uneven curing and painting film properties weakening. |
| Proportions |
100:23 by weight 2,5:1 by volume |
|
Pot life |
at 20°C – no less 4 hours at 10°C – no less 7-8 hours |
|
Air-free spraying |
Thinning: 5-30%
the diameter of the nozzle: 0,017-0,021" Initial pressure: 180 ATM |
|
Air spray |
Operation viscosity: 25-40 s Thinning:10-20% Nozzle diameter:1,8-2,5 mm Initial pressure: 3,0-4,0 atm |
|
Cross linking at 200С |
No less than 6 hours |
|
Brush, roller |
Can be recommended for small and hard-to-reach areas. Thin the primer depending on the working conditions when using brush. |
|
Thinner |
Formula thinner EPPEX |
|
Cleaner |
Formula thinner EPPEX, thinners of type Р4, Р5. |
|
Finishing |
Tubing, pistol and other spraying tools must be cleaned after using. |
|
Cleaning |
Wash the tools after using immediately. The frequency of washing depends on the amount of sprayed material, the temperature and the time since the shutdown, including any time lag. |