Description
Two component polyurethane primer-enamel, hardened by aliphatic polyisocyanate.Scope and specifics of application
Polytex BS primer enamel is used as a self-priming anti-corrosion coating with an accelerated open time and a fast mounting strength. It is available with a different degree of gloss: from deep-matt to high-gloss, has a wide choice of color solutions. It does not require pre-priming. Thick-layer application is possible.
It is used to paint and provide long-term anti-corrosion protection of internal and external surfaces of various vehicles: agricultural machinery, construction equipment, public transport (buses, trolleybuses, trams, etc.), railway transport, as well as other metal structures.
Primer-enamel has increased strength, hardness, abrasion resistance and accelerated open time. It is successfully used in moderate, cold and marine climates, providing long-term protection against corrosion.
Information on the material resistance to various media is available on request.
Main applications: mechanical engineering.Instruction for use
Metal surface should be abrasive blasted to grade 1 or 2 to GOST 9.402 (Sa 2^(1/2) or Sa 2 to ISO 8501-1:2007). Clean surface must be free from dust and grease.
If the quality of surface preparation decreases, the service life and its operating performance may change.
Conditions
Two component polyurethane primer-enamel Polytex BS is applied on prepared surface, with ambient temperature from +50С to +300С and air humidity no more than 80%. Basis temperature higher than dew point no less than 3°C.
The process of applying
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Blending |
Polyurethane primer-enamel consists of two components: component А - basis, component B - hardener. Before use, pre-mix component A with a low-speed drill with mixing nozzle, then mix with component B in stoichiometric ratio in the delivery form. Mix the resulting material thoroughly until smooth. After the hardener is added into the semi-finished product, the material should be allowed to stand for at least 5-10 minutes.
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| Proportions |
Polytex ST hardener 100:12 by weight 7:1 by volume Polytex ST2 hardener 100:10 by weight 9:1 by volume |
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Pot life at 200С, no less |
8 hours |
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Air-free spraying |
Thinning: 0-30% Nozzle diameter: 0,011-0,017" Initial pressure: 120-160 atm |
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Air spraying |
Operational viscosity:25-60 s Thinning: 10-35% Nozzle diameter:1,8-2,5 mm Initial pressure: 3,0-4,0 atm |
| Cross linking at 200С |
60 min |
| Brush, roller |
Can be recommended for small and hard-to-reach areas. Thin the primer-enamel depending on the working conditions when using brush. |
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Thinner |
Formula thinner Polytex, Polytex SLOW. |
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Cleaner |
Formula thinner Polytex,RP-1K,RP-1KF, thinners of type Р4, Р5. |
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Finishing |
Tubing, pistol and other spraying tools must be cleaned after using. |
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Cleaning |
Clean straight after using due to painting equipment manual. |