TU 20.30.22-010-69372620-2022
Description
Two component polyurethane primer, hardened by aliphatic polyisocyanate.Scope and specifics of application
Polytex SQ primer enhances the protective anti-corrosion properties of a complex polyurethane coating that is used both indoors and in the open air. Provides long-term corrosion protection at temperature differential.It is used for priming the surfaces of vehicles: agricultural machinery, construction equipment, railway transport (all types of rolling stock), public transport (buses, trolleybuses, trams, etc.), machine tools, as well as various transport metal structures and metal products exposed to increased mechanical impacts.
Polytex SQ primer has good adhesion, bending strength, abrasion resistance, accelerated open time.
Information on the material resistance to various media is available on request.
Main fields of application: power engineering, mechanical engineering, railway transport facilities, transport construction.Instruction for use
Metal surface should be abrasive blasted to grade 1 or 2 to GOST 9.402 (Sa 2,5 or Sa 2 to ISO 8501-1:2007), surface finish grade St2 to ISO 8501-1:2007 is possible. 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
Ambient temperature from +5°С to +35°C.
Relative air humidity no more 80%.
The process of applying
|
Blending |
Polyurethane primer 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. |
| Proportions |
100: 5 by weight 17:1 by volume |
|
Pot life at 200С, no less |
No less 3 hours |
|
Air-free spraying |
Thinning: 0-20% Nozzle diameter: 0,011-0,017" Initial pressure: 120 -160 atm |
| Air spraying |
Operational viscosity: 25-60 s Thinning: 10-30% Nozzle diameter:1,8-2,5 mm Initial pressure: 3-4 atm |
|
Cross linking at 200С |
30 min |
|
Thinner |
Formula thinner RP-1K,RP-1KF, Polytex. |
| Cleaner |
Formula thinner RP-1K, RP-1K F, as ell as thinners of type Р4, Р5, toluene and xylene. |
|
Finishing |
Tubing, pistol and other spraying tools must be cleaned after using. |
|
Cleaning |
Clean straight after using due to painting equipment manual. |