| About |
|---|
| Characteristics Polyvinyl butyral (PVB) grades with different molecular weights, and varying degrees of acetalization. Recommended Uses Binder for coatings (adhesion promotion/corrosion protection primers, shop primers, wash primers, stoving enamels, varnishes and lacquers for different substrates). Binder for printing inks. Co-binder for powder coatings. Temporary binder for ceramics. Binder for textile printing and non-woven. Wetting agent for grindings, esp. of organic pigments. Adhesives, pressure-sensitive adhesives and hotmelts.&& |
| Product Description | |
|---|---|
| Supplier | Kuraray |
| Generic | PVB |
| Material Status | Commercial: Active |
| Features | Good heat sealing,Crosslinked,Food contact compliance |
| Availabilitys | North America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Apparent density | 0.27 | g/cm³ | DIN EN 543 |
| Water absorption rate | |||
| 20℃，24hr，0.10 mm | 6.0 to 10 | % | |
| Solution viscosity | 180 to 280 | mPa·s | DIN 53015 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Glass transition temperature | 72.0 | ℃ | ISO 11357-2 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Polyvinyl acetate content | 1.0 to 4.0 | wt% | |
| Polyvinyl alcohol content | 24.0 to 27.0 | wt% | |
| nonvolatile content | > 97.5 | wt% | DIN 53216 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. According to Hoeppler, 10% solution in Ethanol containing 5% water at 20°C |
| 3. Acetyl groups in terms of polyvinyl acetate |
| 4. Hydroxyl groups in terms of polyvinyl alcohol |
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