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Simpact™ 60A

Simpact™ 60A vs. Formlastic™ 48

Tough, Fast Setting Urethane

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Formlastic™ 48

Simpact™ 60A vs. Formlastic™ 48Simpact™ 60A

Urethane Moldmaking Rubber

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Key Differences

Product Type
  • Urethane Rubber
  • Urethane Resins
  • Urethane Rubber
Mixed Viscosity1,100 cps3,000 cps
Pot Life4 minutes25 minutes
Cure Time48 hours24 hours
Shore A Hardness6048
ColorWhiteOff White
Die C Tear Strength142 pli98 pli
Tensile Strength990 psi700 psi
Elongation @ Break400 %1,250 %
100% Modulus312 psi111 psi
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

Simpact™ 60AFormlastic™ 48
Product Type
  • Urethane Rubber
  • Urethane Resins
  • Urethane Rubber
Mixed Viscosity1,100 cps3,000 cps
Mix Ratio By Volume1A:1B1A:1B
Mix Ratio By Weight100A:94B100A:118B
Pot Life4 minutes25 minutes
Handling Time2 hours
Cure Time48 hours24 hours
Shore A Hardness6048
Specific Gravity1.08 g/cc1.14 g/cc
Specific Volume25.7 cu. in./lb.24.3 cu. in./lb.
ColorWhiteOff White
Die C Tear Strength142 pli98 pli
Tensile Strength990 psi700 psi
Elongation @ Break400 %1,250 %
100% Modulus312 psi111 psi
Shrinkage<.007 in. / in.<0.001 in. / in.

Product Description

Simpact™ 60A

Simpact™ 60A urethane is a low odor, fast-setting urethane elastomer which offers very high tear strength, impact resistance and wear resistance. Simpact™ urethanes are phthalate free, mercury free and MOCA free. Simpact™ urethanes pour easily. Working time is 4 minutes, handling time is 2 hours and full cure time is 48 hours at room temperature.

Cured rubber has exceptional performance characteristics and dimensional stability. Simpact™ urethanes can be colored with SO-Strong™, UVO™ or Ignite™ colorants. Simpact™ urethanes are suitable for making impact resistant props, prototypes and display pieces.

This material may congeal if exposed to cold temperatures. To reconstitute, Part A & B must be heated to 90°F (33°C) then thoroughly mixed to an even consistency.

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Formlastic™ 48

Formlastic™ 48 urethane is a durable mold rubber made for production casting of concrete. It features a low viscosity for easy mixing and pouring and cures with minimal bubble entrapment. Mix ratio is 1A:1B by volume, pot life is 25 minutes and the rubber cures with an ultimate Shore hardness of Shore 48A. Cured rubber is dimensionally stable (low shrinkage), offers good wear resistance and will render color accurate concrete castings.
IMPORTANT: This product does not contain crystalline silica.

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