Butvar® B-90 by Eastman is a free-flowing polyvinyl butyral (PVB) thermoplastic grade. It is available as powder and imparts broad solubility, good adhesion, toughness & flexibility. Retains clarity of the coating and offers reactive hydroxyl sites for crosslinking with thermoset. Butvar® B-90 is recommended for binders for adhesives and structural composites, for inks and toners. Suitable for wash primers and general metal and wood coatings.
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Butvar® B-90 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Density, Bulk | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hydroxyl Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Molecular Weight, Mw | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Softening Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
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| Volatile Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
Others properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Dust Deflagration Index (Kst) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Dust Explosion Class | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Acetate Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Butyryl Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Minimum Ignition Energy | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Thermal properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Glass Transition Temperature (Tg) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Minimum Ignition Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |