Smooth-On Task 3 Casting Resin

TASK™ 3 low viscosity, high performance casting resin offers superior physical and performance properties compared to our popular Smooth-Cast™ Series of general purpose casting resins. Vacuum degassing is not necessary and it offers the convenience of a 1A:1B by volume (115A:100B by weight) mix ratio.

TASK™ 3 is white. It has high tensile and flexural strength, as well as high flexural modulus. This plastic was formulated for a variety of industrial applications including pattern making and making prototype models. This resin is designed for casting in thicknesses up to ½” (1.27 cm).

Data At-A-Glance

Mix Ratio By Volume 1A:1B
Mix Ratio By Weight 115A:100B
Specific Gravity 1.12 g/cc
Specific Volume 24.7 cu. in./lb.
Color White
Pot Life 20 minutes
Cure Time 90 minutes
Tensile Strength 6,650 psi
Elongation @ Break 6 %
Shrinkage 0.0025 in. / in.
Tensile Modulus 290,000 psi
Flexural Strength 9,500 psi
Flexural Modulus 288,000 psi
Compressive Strength 8,300 psi
Compressive Modulus 78,000 psi
Shore Hardness 80 D
Heat Deflection Temp 134 °F
Mixed Viscosity 150 cps

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