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Master Bond adhesives

Eastman Butvar® B-90 Polyvinyl Butyral Resin
Categories: Polymer; Thermoplastic; Vinyl (PVC)

Material Notes: Product Description: Butvar® B-90 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.

Application/Uses:

  • Binders for adhesives and structural composites
  • Binders for inks and toners
  • Wash primers and general metal or wood coatings

Information provided by Eastman

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.10 g/cc0.0397 lb/in³
Volatiles <= 5.0 %<= 5.0 %
Viscosity 13 - 17 cP13 - 17 cP6% solids in anhydrous methanol
Molecular Weight 70000 - 100000 g/mol70000 - 100000 g/mol
 
Thermal PropertiesMetricEnglishComments
Glass Transition Temp, Tg 72.0 - 78.0 °C162 - 172 °F
 
Descriptive Properties
AppearanceWhite, free-flowing powder
Content<2.5 %Acetate Content
 18.5-20.5%Hydroxyl Content
 80%Butyryl Content

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PEATM5091 / 222285

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