Product Description
The steel structures on chemical plants and coastal areas have high demand for anticorrosion property. STWD9593 is a high performance one component moisture cure polyurethane coating material, the coating adopts large amount of urea bond, two urea bond, urethane bond and hydrogen bond during the pre polymerization process, it is cured after absorption with air moisture, the dense cross-linked interpenetrating network make the coating film has robust chemical resistance and physical property. It has excellent infiltration and permeability characteristics, and it will react with the hydroxyl bond of the substrate so that the adhesive strength is greatly improved with chemical and physical adhesion. The moisture cure principle makes it has excellent shielding effect. It is abrasion resistance, impact resistance, and flexible to avoid crack, most suitable for the steel structures which has high demand for large span and heavy duty anticorrosion requirements.
Features and advantages
* excellent adhesive strength, bond solid with metal, concrete, wood, fiber glass and other substrates.
* high solid content and meet the requirements of environmentally friendly
*excellent mechanical property, wearable, impact resistance and scratch resistance; flexible coating to resist the cyclic stress
*excellent waterproof property
*excellent anticorrosion property and resistance to many chemical medium.
*can be applied by hand brush or other machines spraying
*single component, easy application without need of mix ratio with other parts.
Typical use Anticorrosion protection of petroleum, chemical industry, transportation, bridge, building, electric power and other field.
Product information
| Item |
Results |
| Appearance |
Color adjustable |
| Viscosity (cps )@20ºC |
290 |
| Solid content (%) |
≥70 |
| surface dry time (h) |
1-3 |
| Pot life (h) |
1 |
| theoretical coverage |
0.28kg/m2(thickness 200um) |
Physical property
| Item |
Test standard |
Results |
| pencil hardness |
GB/T 6739-2006 |
2H |
| bending test (cylindrical mandrel) mm |
GB/T 6742-1986 |
1 |
| breakdown resistance strength (kv/mm) |
HG/T 3330-1980 |
250 |
| impact resistance (kg·cm) |
GB/T 1732 |
60 |
| resistance to temperature changes (-40--150ºC) 24h |
GB/9278-1988 |
Normal |
| adhesive strength (Mpa), metal base |
ASTM D-3359 |
5A (highest) |
| density g/cm3 |
GB/T 6750-2007 |
1.02 |
Audited Supplier 
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