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All Technical Data

Shell Shock® FAST
Product Type
  • Urethane Resins
Mixed Viscosity3,000 cps
Mix Ratio By Volume1A:4B
Mix Ratio By Weight1A:5B
Pot Life3 minutes
Cure Time60 minutes
Shore D Hardness85
Specific Gravity1.60 g/cc
Specific Volume17.3 cu. in./lb.
Tensile Strength3,100 psi
Tensile Modulus435,000 psi
Elongation @ Break0.4 %
Compressive Strength9,000 psi
Compressive Modulus500,000 psi
Flexural Strength7,150 psi
Flexural Modulus980,000 psi
Shrinkage0.0006 in. / in.
Heat Deflection Temp135 °F

Product Description

Shell Shock® FAST

Shell Shock® FAST is a thixotropic plastic that self thickens when mixed and can be brushed onto a variety of surfaces or into rubber molds. When Parts A and B are mixed in proper proportion (1A:4B by volume or 1A:5B by weight), material cures at room temperature with virtually no shrinkage to a hard, durable plastic that exhibits good compressive and flexural strength. Fully cured castings are rigid and can be sanded, primed and painted. Color effects are possible by adding SO-Strong Color Tints.

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