PVB Film is used as interlayer film in production of laminated safety glass for Automotive front glass and buildings; And potential costumers of PVB Films are glass factories. The PVB film is a high molecular polymer made from PVB resin and plasticizer, together With different additives according to different application and formed through Plasticization and extrusion by extruder. It is semitransparent, elastic, flat, without Impurity but with some roughness.
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 & Shipping
1) Every layer of PVB film rolls should be separated by PE film and vacuumed by aluminum foil,and put into wooden cases. The finishes qualified product is enclosed with the conformity certificate. Packing list etc.
2)Transportation and Storage:
Avoid exposing to the sun and rain and vigorous shaking during transportation.
The product should be stocked in clean warehouse. It is prohibited to keep the product under direct sunlight.