Saflayer PVB interlayer film is a macromolecule material which produced by extrusion using PVB resin, plasticizer and additives. Saflayer pvb film is not only can shield out the UV, heat and sound, but also famous for its high visible transmittance, super anti-penetration. The major application of PVB film is laminated safety glass used on automotive windshields, architectural glass as well as the bullet proof glass.
| Apperarance |
Surface |
Smooth surface without Nick,Crease,Bond; |
| Crystallite and watermarks |
Crystallite Diameter exceed 2.0mm and Visible watermarks are not allowed. |
| Visible defects (impurities, bubbles, oil, drop etc.) |
Maximum 10 defects with each one diameter exceed 0.5mm were allowed per 400m |
| Marks defects diameter exceed 0.5mm and mark the intensive defects area( within the 300mm diameter circle, 10 defects exist with each one diameter less than 0.5mm) as one defect. The defects's marks and places also should be listed in the parcking list. |
| Thickness & Size Tolerance |
Tolerance(mm) |
+/- 0.02mm |
| Uniformity Ratio |
At any two points from 25mm distance either horizontally or vertically of the thickness tolerance is less than 15μm; (or 50mm - less than 25μm; or 100mm - less than 50μm) |
| Length & Width |
>= Normal Length / Width |
| Roughness Rz μm |
15 -70 |
| Moisture Content (%) |
0.35 - 0.55 |
Heat Shrinkage Rate
( 60ºC/15min) (%) |
8.0 Max |
| Pummel Value |
7 Max |
| Light Transmittance (%) |
85 Min |
| Haze (%) |
0.2 - 0.4 |
| Tensile Strength (MPa ) |
20.0 Min |
| Tensile Elongation (% ) |
200 Min |
| Yellowness Index (%) |
10 Max |
Qingdao Haocheng Industrial Co., ltd. is a professional manufacturer and engaged in the research & production, sale and service of PVB resin, PVB film interlayer, PVB plasticizer (3GO) and Float laminated glass sheets. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. Going with company development, we are looking for new team of partner with strong integrity to join us to enjoy our business together.
Packing: The PVB film is rolled with PE separation film and then wrapped with Stretch film, cased into an aluminum foil bag by vacuum sealed, outside packing using plywood box or fiber can. (Remark: the width is less than 1100mm, which can be packing into fiber can)
Transportation: There should no direct sunlight, drench, and violent shaking during the transportation.
Storage: Be stocked in cleanhere should be quality certificate, packing list in the package. The marks of moisture proof, shock proof and sunlight proof should be labeled.
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