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Product Details:
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Material: | Polyvinyl Butyral | Haze: | 0.6% |
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Light Transmittance: | 87% | Shringking: | 8% |
Roughness: | 28-50 Um | Elongation At Peak: | 200% |
Tensile Strength: | 20MPa | Color: | Clear Or Color |
Thickness: | 0.3-1.52mm OEM | ||
High Light: | pvb middle layer,sgp glass interlayer |
PVB layer, also called Polyvinyl Butyral, are extruded mixture of special plasticizer, additives and PVB resin that form PVB films with even thickness.
PVB layer film are primarily applied in laminated glass that is a construction of two or more pieces of glass. The high adhesive PVB films are clamped between layers, so PVB films must equip with excellent adhesion, light transmission and safety.
PVB layer technical parameters
No. | Classfication ltems |
0.38mm | 0.76mm |
1 | Appearance | ||
1.1 | Appearances | Achromatic or slinghtly yellow lucid film With velvet surface that has no scar or crease . | |
1.2 | Dotted waste sundries and air buhbles | ||
≤0.05 | Allowed if exist separately | ||
0.05 | Not exceeding 8 places per film | Not exceeding 5 places per film | |
Making marks Define an extanded 0.5 metar film per place Add one extra meter par place | |||
2 | Size | ||
2.1 | Thickness ( mm ) | 0.38±0.02 | 0.76±0.02 |
2.2 | Uniformity | Horizontal thickness warp should not exceed 15um at a distance of 25mm; horizontal Ehickness warp Should not exceed 20um at a distance of 50cm. | |
2.3 | Length tolerance (m ) | 0-5 | 0-2 |
2.4 | Width tolerance ( mm ) | 0-20 | |
3 | Moisture ( % ) | 0.4-0.6 | |
4 | Extending intansion ( MPa ) | ≥20.0 | |
5 | Ruplura extending rate (%) | ≥200 | |
6 | Fograge (%) | <0.4 | |
7 | Shrinking rate (60/15min) ( % ) | ≤12 |
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