... from 58% to 65%, soft light, Compared to the PVC membrane can save 50% energy under the same light source.3. Insulation ... .5. Waterproof, water and steam impermeable.6. Aging-resistant, can be used 30 years without yellowing.7. Environmental protection. Use ... , light box cloth, blind fabric, high-temperature filter cloth, PVC and PTFE flexible smallpox, high insulation products, insulation materials and ...