| 摘要 |
A system and method are provided for treating a surface which system makes the surface substantially resistant to markings of graffiti, improves the surface resistance to corrosion, salt and chemical attack and provides a high degree of dielectric resistance. The system comprising a water-based epoxy base coat is initially applied to the surface. After drying thereof, a top coat system comprising a modified polyurethane resin without organotin and dibutyltin laurate, a catalyst, a reducing agent and additives, such as a resin hardener and film former, an accelerator and a hindered amine light stabilizer UV absorber, is applied directly over the base coat and permitted to cure. For certain surfaces, the top coat alone can be applied to improve the surface's resistance to corrosion, acid rain attack and graffiti. |
