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TASK™ 3

PMC™-790 vs. TASK™ 3

Low Viscosity, High Performance Casting Resin

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PMC™-790

PMC™-790 vs. TASK™ 3TASK™ 3

Industrial Liquid Rubber Compound

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Key Differences

Product Type
  • Urethane Resins
  • Urethane Rubber
Mixed Viscosity150 cps3,000 cps
Cure Time90 minutes48 hours
Shore D Hardness80
Shore A Hardness90
ColorWhiteClear Amber
Tensile Strength6,650 psi2,000 psi
Elongation @ Break6 %550 %
Disclaimer
Although we do our best to ensure accuracy, Smooth-On offers no warranties, promises, and/or representations of any kind, either expressed or implied, as to the accuracy, completeness, or reliability of the information contained on this Compare Tool, nor suitability of the information contained herein to your particular circumstances. Smooth-On assumes no liability for losses or damages of whatever nature (direct, indirect, consequential or other) associated with your use, or inability to use, the Compare Tool, or from your use (or failure to use) the information contained herein. Other useful tools include product technical bulletins and our extensive FAQ section. You can also contact our technical support team.

All Technical Data

TASK™ 3PMC™-790
Product Type
  • Urethane Resins
  • Urethane Rubber
Mixed Viscosity150 cps3,000 cps
Mix Ratio By Volume1A:1B2A:1B
Mix Ratio By Weight115A:100B2A:1B
Pot Life20 minutes20 minutes
Cure Time90 minutes48 hours
Shore D Hardness80
Shore A Hardness90
Specific Gravity1.12 g/cc1.07 g/cc
Specific Volume24.7 cu. in./lb.25.9 cu. in./lb.
ColorWhiteClear Amber
Die C Tear Strength300 pli
Tensile Strength6,650 psi2,000 psi
Tensile Modulus290,000 psi
Elongation @ Break6 %550 %
100% Modulus640 psi
Compressive Strength8,300 psi
Compressive Modulus78,000 psi
Flexural Strength9,500 psi
Flexural Modulus288,000 psi
Shrinkage0.0025 in. / in.<.001 in. / in.
Heat Deflection Temp134 °F

Product Description

TASK™ 3

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). TASK™ Plastics are moderately priced and are available in trial kits, one-gallon, five-gallon, 55-gallon drum and totes.

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PMC™-790

PMC™-790 is a Shore 90A industrial urethane rubber compound designed to meet the most stringent requirements of industrial production applications. It is a very hard rubber that offers superior tear and tensile strength as well as impact and abrasion resistance. 

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