1. The strength and fire resistance of PVC fabric membrane materials have a certain gap compared with PTFE. The service life of PVC fabric membrane materials is generally 7 to 15 years. In order to solve the self-cleaning problem of the PVC fabric membrane material, Polyvinylidene Fluoride Resin is usually applied to the PVC coating material as a PVDF membrane material.
2. Another PVC fabric material coated with Tio2 (titanium dioxide) has a very high self-cleaning property. The surface layer of PVC membrane material should have stable corrosion resistance and UV resistance during the shelf life, and the surface has self-cleaning properties.
3. When the PVC fabric material reaches the melting point in the fire environment, a molten hole will appear, and the boundary of the melt hole will spread , but no open flame will be produced. According to China's GB8624 "Classification Method of Combustion Performance of Building Materials", it is classified as B1 grade flame retardant material.
4. The color, light reflection and light transmittance of the PVC film material should meet the requirements of the following table.