laminated glass is widely used in automotive and architectural. In the field of automotive glass,PVB film is the main material to produce windshield; Also PVB film has wider range usage in the field of architectural glass,such as construction wall,cover grid,show wind,bank counter,screen of steel-smeding furnace and different bulletproof glass and so on
Use laminated glass can make car more safe and better sound insulation.
Roughness RZ,µm:15-70
Moisture content(%):0.35-0.55
Heat shrinkage rate(%):<=8.0
Pummel value,rank: 3~7
Visible light transmittance(%): >=80
Haze(%): <=0.4
Tensile strength(MPa): >=20
Tensile elongation(%): >=200
Yellowness index(%): <=10
Packaging:
Every layer of PVB film rolls should be sepatared by PE film and vacuumed by aluminum foil,and put into wooden case.
The product should be stocked in a clean warehouse and normal temperature.It is prohibited to leave it under direct sunlight.Once the packing is broken or opened,it should be stocked under temperature of 15-25 ℃ and a relative humidity of 20%-40%.