Description of cold galvanizing
Epoxy two-component protective zinc-filled primer.
The primer EPPEX Zn is designed for protection against corrosion of products, structures and structures made of ferrous metals, operating in atmospheric conditions, in conditions of water-salt fog, in the environment of vapors and aerosols of petroleum products.
The specifics of the application
- as a primer layer in complex protection systems. It is recommended for use as a primer in complex corrosion protection systems with eppex primer and/or polyurethane two-component enamel "Polytex".
- can be applied as a single coat, without the finish coat when painting objects exposed to weathering (atmospheric corrosion category C3).
The coating of the primer does not prevent welding operations by spot welding or arc welding in an inert gas in a layer of 15-20 microns. The coating is resistant to spills of sea and fresh water, aqueous solutions of salts, oil and petroleum products.
Information on the resistance of the material to different media is available on request.
1. Degrease the metal surface to the first degree according to GOST 9.402.
2. Perform abrasive blast cleaning at the metal surface to a degree 2 according to GOST 9.402 (Sa 2½ or Sa 2 according to ISO 8501-1) with roughening, the recommended surface profile Rz from 30 to 50 microns. For hot-rolled steel, mechanized and manual cleaning of the surface to a degree 3 according to GOST 9.402 (St 3 or St 2 according to ISO 8501-1) is allowed. Application on a smooth surface without roughening is not allowed.
3. Remove dust.
If the surface preparation quality decreases, the service life and performance may change.
The temperature of the primer is not less than +15°C.
The temperature of the base is higher than the dew point by at least 3°C.
Ambient temperature from -10°C to + 35°C.
Relative humidity not more than 80%.
The process of applying
The product is two-component. Component A is a suspension of anticorrosive pigments and fillers in epoxy resin. Component B is a solution of the curing agent. Always mix a complete unit in the proportions supplied. After mixing, use within the specified pot life.
The sequence of mixing:
The base (component A) is mixed with a construction mixer. Then the mixed hardener (component B) is added to the base (component A) and thoroughly mixed with a construction mixer.
Attention! Careless mixing or the wrong ratio can lead to uneven curing and weakening of the properties of l/C film.
Minimum exposure time of the coating to the coating materials (at a temperature of (20±2)°C and relative humidity (65±5)%) – 3 hours.
The maximum holding time before applying the coating layers-no more than 1 year. The exposure time of the coating prior to use in aggressive environments - at least 7 days.
Drying time and inter-layer exposure time depend on film thickness, temperature, relative humidity and ventilation.
9:1 by weight
5:1 by volume
|Viability||20°С - 8 hours|
Dilution: 0-10% by volume
The diameter of the nozzle: 0,015"-0,021"
Initial pressure: 120-200 ATM
5-15% viscosity VZ-246 with a diameter of 4 mm-35-50 seconds.
Nozzle diameter: 1.5-2.2 mm
Pressure: 3.5-4 ATM
|Interlayer exposure||3 hours|
It is recommended to use only for small areas or hard-to-reach areas. When applying the brush, dilute the primer depending on the priming conditions