China Real Factory Manuafactured Laminated Glass PVB Interlayer, Find details about China PVB Interlayer, Laminated PVB Interlayer from Real Factory Manuafactured Laminated Glass PVB Interlayer
specifications items | 0.38mm | 0.76mm | 1.52mm | |
apparence | appearance | Smooth surface without nick or crease , ;,. | ||
crystallite and watermarks | The crystallite Diameter >=2.0mm not allowed, and the watermarks not visible>=2.0mm;. | |||
Visible defects(impurities, bubbles, oil, drop etc.)(,,,,) | >0.5mm 350<10 | > 0. 5mm 200<6 | > 0. 5mm 100<4 | |
Mark the diameter of more than 0.5mm. The dot of diameter <=0. 5mm separately exist are allowed, however, for the dots of <=0. 5mm densely existed defects should be regarded as a defect > 0.5mm. the kinds and places should be mentioned in the packing list. > 0.5mm ;> 0.5mm1;<=0. 5mm,<=0. 5mm(1),> 0.5mm .. | ||||
thickness and size | thickness deviation (mm) | ±0.02mm | ±0.04mm | ±0.08mm |
/uniformity | Transect thickness warp must less than 15 μ m in a distance of 25mm; must less than 25 μ m in 50mm, and must less than 50 μ m in 100mm. /15 μ m; 50mm / 25 μ m;100mm / 50 μ m | |||
(m) | >=normal length | |||
(mm) | >=normal width | |||
Rz | 15-70 | |||
Moisture content(%) | 0.35~0.55 | |||
Heat shrink rate( 60ºC/15min)(%) | <= 12.0 | <= 8.0 | <= 5.0 | |
Pammul value | ≥7 | |||
visible light transmittance (%) | >= 80 | |||
Haze (%) | < 0.6 | |||
Tensile stength (MPa ) | >=20.0 | |||
Tensile Elongation(% ) | >= 200 | |||
Yellowness Index(%) | <=10 | |||
1:dense existence refers to the circular of 300mm diameter, the dot defects should be>=10, and the adjacent apace should be<=5mm.300mm,>=10,<=5mm. |