Product Description
STWD850 solvent-free nano-modified polyurea heavy-duty anti-corrosion coating is a combination of inorganic zirconia and modified polyurea matter with high cross-linking density. The inorganic zirconia has high hardness, high wear resistance, high toughness, high corrosion resistance and temperature resistance. This combination forms a rigid and flexible anti-corrosion coating. It can effectively prevent the penetration of corrosive media such as vapor, acid, alkali, salt, and chloride ions under hot and cold alternation, and its ultra-high wear resistance and impact resistance can also be used for the protection of some substrate surfaces.
Product features and advantages
*The coating is dense, with high hardness and good toughness, which can resist cyclic stress failure of steel structures and small cracks in concrete
*It has excellent adhesion to various metal and non-metallic materials (the surface adhesion of Sa2.5 grade steel can reach over 20MPa)
*It is can be used as primer and middle coating, and there is no need for a specialized primer to be used together. Excellent adhesion and corrosion resistance can be achieved on the surface.
*Good heat resistance and sudden temperature-changing resistance
*Excellent impact resistance, collision resistance, and wear resistance
*Excellent resistance to chemical media, such as acid, alkali, salt, etc.
*Excellent corrosion resistance, able to withstand various high concentrations of strong acids and alkalis
*Solid content above 98%, no organic VOC volatilization, environmentally friendly, odorless, and environmentally friendly
*Super strong corrosion resistance, wear resistance, and impact resistance reduce lifetime maintenance costs
*Extending the Service Life of Sprayed Structures
Product application scope
Chemical industry, oil refining, power generation, metallurgy and other industries that have high acid and alkali corrosion resistance; equipment inner wall, desulfurization tower and flue, Cesspit, container, storage tank and other fields that used under high temperature environment.
Product Physical Properties
Item |
Part A |
Part B |
Appearance |
Light yellow liquid |
Colod adjustable |
specific gravity (g/m³) |
1.23 |
1.6 |
viscosity(cps)@25ºC |
200±100 |
20000±500 |
Solid content (%) |
98±2 |
98±2 |
Mixing ratio(by weight) |
1 |
4 |
Surface dry time(h) |
3-6h(25ºC) |
Recoating time (h) |
Min 3h; max 24h(25ºC) |
theoretical coverage (dry film thickness |
0.25kg/m2 Film thickness 150μm |