Technical Data Sheet
Butvar® B-79 is a thermoplastic, polyvinyl butyral resin which offers a unique combination of properties for coating or adhesive applications. The use or addition of polyvinyl butyral to a system imparts adhesion, toughness, and flexibility. PVB retains the clarity of the coating and offers reactive hydroxyl sites for crosslinking with thermoset systems. The broad solubility range of Butvar® B-79 allows it to be formulated into many applications.
Typical Value, Units
5% solids in SD-29 ethyl alcohol @ 25°C
5.0 % max
White, free-flowing powder
Glass Transition Temperature (T
% Polyvinyl Alcohol
% Polyvinyl Acetate
% Polyvinyl Butyral
Size exclusion chromatography with low angle laser light scattering standard.
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