Description
Two component epoxy corrosion-proof primer for steel and concrete surfaces.
Scope and specifics of application
EPPEX SF 90 primer is used as a primer layer or interlayer coating in complex protection systems. It provides good performance of the coating and long-term corrosion protection. It has a high volume dry residue, which allows to increase the manufacturability of the painting process. The EPP EX SF90 material can be used as an independent coating applied in a single layer, the thickness of which is 200 microns. It is used for painting the internal surfaces of tanks, containers, process pipelines, for protecting steel surfaces, including bridges. It is successfully used in anticorrosive chemically resistant systems..
Instruction for use
Metal surface should be abrasive blasted to grade 1 or 2 due to GOST 9.402 (Sa 2,5 or Sa 2 to ISO 8501-1:2007). Cleaned surface must be free of dust and grease.
If the quality of surface preparation decreases, the service life and its operating performance may change.
Conditions
Two component epoxy primer EPPEX SF 90 is applied on the surface at the air temperature from +150С to +350С and relative humidity no more 80%. Application at temperature from -50С is possible, the primer temperature must be no less than +150С to provide processing characteristics. Surface temperature should be 30 higher than dew point..
The process of applying
|
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 |
100:8 by weight 8:1 by volume |
|
Pot life at 20+20С, no less |
5 hours |
|
Air-free spraying |
Thinning: 5-20% Nozzle diameter: 0,011-0,017" Initial pressure: 120-180 atm |
| Air spraying |
Thinning: 10-30% Nozzle diameter:1,4-2,6 mm Initial pressure: 3,0-4,0 atm |
| Roller Brush |
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. |