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Formula 20-136
Formula #20-136 is a premium quality epoxy casting compound suitable for a variety of industrial casting and bonding applications. Most commonly cured with Smooth-On Sonite 16 Hardener (heat cure cycle required), #20-136 features a relatively low viscosity that ensures minimal bubble entrapment. Castings cure with negligible shrinkage and are very hard, very strong and heat resistant.

#20-136 is ideal for making vacuum form molds, foundry patterns, forming dies & fixtures, hard rollers, industrial parts and high impact tools. #20-136 is also suitable for encapsulation applications or for use as a high temperature epoxy for bonding a variety of surfaces (resists temperatures up to 350 F/177 C if post cure schedule is used).
  • Formula #20-136 Mix Ratio: 100 Parts #20-136 to 15.5 Parts Sonite 16 by weight




Product Name: A:B Mix RatioColorCompressive StrengthDemold TimeMixed ViscosityPot LifeTensile StrengthUltimate Shore Hardness
20-136100 Parts #20-136 : 15.5 Sonite 16 by weightBeige13000 psi2 hrs@80C followed by 3 hrs@150C12000 cps3 hrs4500 psiBarcol 55


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