Description
Two component polyurethane enamel, hardened by aliphatic polyisocyanate.Scope and specifics of application
Polytex ST enamel is used to form UV-resistant glossy (with a gloss of up to 95%) finishing coatings, with high requirements for appearance. Enamel Polytex ST has a smooth shine, excellent shock resistance, bends and other mechanical impacts.
It is used to paint transport structures, construction and agricultural machinery, railway and urban transport, oil and gas pipelines, power transmission towers and cell towers, steel tanks, machine tools, equipment and other primed metal surfaces, with high requirements both for wear resistance and appearance.
The enamel is resistant to abrasion, static water effects, sodium chloride solution and transformer oil. It has an increased hardness and rapid formation of the paint coating under normal application conditions.
Information on the material resistance to various media is available on request.
Main fields of application: oil and gas industry, power engineering, capacitive equipment, mechanical engineering, chemical industry.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). 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 enamel Polytex ST is applied on primed 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
|
Blending |
Polyurethane 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. |
| Proportions |
Hardener Polytex ST 100:17 by weight 6,0:1 by volume Hardener Polytex ST2 100:14 by weight 7,5:1 by volume |
|
Pot life at 200С, no less |
No less than 5 hours |
| Air spraying |
Operational viscosity:18-35 s Thinning: 5-30% Nozzle diameter:1,4-2,0 mm Initial pressure: 3-4 atm |
|
Air free spraying |
Thinning: 5-30% Nozzle diameter: 0,111-0,513" Initial pressure: 120-160 atm |
| Cross linking at 200С | 30 min |
|
Roller Brush |
Can be recommended for small and hard-to-reach areas. Thin the primer-enamel depending on the working conditions when using brush. |
|
Thinner |
Formula thinner Polytex, Polytex F, Polytex SLOW. |
| Cleaner |
Formula thinner Polytex, RP-1K, thinners of type Р4, Р5. |
|
Fininshing |
Tubing, pistol and other spraying tools must be cleaned after using. |
|
Cleaning |
Clean straight after using due to painting equipment manual. |