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Polyvinyl butyral. Acts as a binder. Also acts as a co-binder for powder coatings.
Details
Common names
PVB
Product Type
Applications
Industry
Producer
Supplier
Chemical Composition
Polyvinyl Butyral
Advantages
- better plasticizing properties
- very good adhesion properties
- very good adhesion to substrates like polyolefins, metals, cellulose acetate, polyester, cellophane, polyamide, and polystyrene films
- Printing inks exhibit low solvent retention
- good flow
- good resistance to water
Other Applications
adhesion promotion/ corrosion protection primers
shop primers
wash primers
stoving enamels
varnishes and lacquers for different substrates
strippable packaging coatings
automotive refinishing coatings
can coatings
heat-sealable lacquers
radiator primers/topcoats
wood sealing varnishes
plastic surface finishes/nitrocellulose lacquers
gear paints/paper varnishes
powder coatings
coil coatings
thermo-transfer inks
flexographic as well as gravure printing inks
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Appearance Properties | |||
| Physical state | powder | ||
| Physical Properties | |||
| Viscosity | 80 - 110 | cP | |
| Bulk density | 0.25 | g/ml | |
| Thermal Properties | |||
| Glass transition Temperature | 70 | ºC | |
| Auto-ignition temperature | >380 | ºC | |
| Melting point | 135 - 210 | ºC | |
| Chemical Properties | |||
| Polyvinyl alcohol content | 21 - 24 | % | |
| Water absorption | 5 - 8 | % | |
| Non-volatile materials | >97.5 | % wt | |
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