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Brush-On® 40

Brush-On® 40 Technical Specifications

"Brushable" Polyurethane Rubber Compound

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All Technical Data

Brush-On® 40
Product Type
  • Urethane Rubber
Mixed ViscosityBrushable
Mix Ratio By Volume1A:1B
Mix Ratio By Weight100A:125B
Pot Life20 minutes
Cure Time16 hours
Shore A Hardness40
Specific Gravity1.17 g/cc
Specific Volume23.7 cu. in./lb.
ColorOff White
Die C Tear Strength60 pli
Tensile Strength300 psi
Elongation @ Break1,000 %
Shrinkage<.001 in. / in.

Product Description

Brush-On® 40

Smooth-On’s Brush-On® Series of mold rubbers are extremely versatile and are famous for their abrasion resistance and high tear strength. They have the convenience of a one-to-one mix ratio and are easy to mix and apply with a brush or spatula.

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