China Highly Adhesive & Transparent 0.76mm Fresh Materials PVB Film Interlayer, Find details about China PVB Film, PVB Interlayer from Highly Adhesive & Transparent 0.76mm Fresh Materials PVB Film Interlayer
Color: Clear | ||
Thickness: 0.76mm | ||
Appearance | Surface | Smooth surface without nick, crease, bond |
Crystallite and Watermarks | Crystallite diameter exceed 2.0mm and Visible watermarks are not allowed | |
Visible Defects (Impurities, Oil, Bubbles, Drop etc) | Maximum 10 defects with diameter exceed 0.5mm were allowed per 400M | |
Mark defects diameter exceed 0.5mm and Mark the Intensive Defects Area (Within the 300mm diameter circle, 10 defecsts exist with each one diameter less than 0.5mm.) must tag on one defect. The defects' marks and places also should be listed in the packing list. | ||
Thickness & Size Tolerance | Tolerance | ± 0.04mm |
Uniformity Ratio | At any two points from 25mm distance either horizontally or vertically of the thickness tolerance is less than 15um; 50mm distance is less than 25um, and 100mm distance is less than 50um. | |
Length & Width | >= Normal Length / Width | |
Roughness Rz ( μm ) | 15 ~ 70 | |
Moisture Content ( % ) | 0.35 ~ 0.55 | |
Heat Shrinkage Rate ( 60ºC/15min ) ( % ) | <= 8 | |
Pummel Value | >= 7 | |
Visible Light Transmittance (% ) | >= 80 | |
Haze ( % ) | < 0.6 | |
Tensile Strength ( MPa) | >= 20.0 | |
Tensile Elongation ( % ) | >= 200 | |
Yellowness Index ( % ) | <= 10 |