For the absolute latest on new mold making and casting products, application, and developments, this is the place to go! We offer silicone rubber, urethane rubber, urethane plastic, rigid & flexible foam, lifecasting materials and accessories, castable epoxy resins, laminating epoxy resins, polysulfide rubber, duoMatrix, Sprayable rubber plastic and foam, Industrial Grade Epoxy Adhesives, adhesives, release agents and sealers and other mold making supplies, tools & equipment.

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Castable Epoxy Resins

Formula 20-136
 Formula 20-136
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).

You must purchase Sonite 16 hardener separately to use this product. CLICK HERE

  • Formula #20-136 Mix Ratio: 100 Parts #20-136 to 15.5 Parts Sonite 16 by weight


Metalset A-30
 Metalset A-30
Metalset A-30
Metalset A-30 is a non-setting, low viscosity casting compound having low overall shrinkage. It is heavily filled with atomized aluminum powder and mineral filler. Metalset A-30 can be used for general casting such as models, patterns, jigs and fixtures and short run light metal forming dies. It was designed for use with Sonite (high temperature) hardener #16 for the production of oven-cured vacuum forming molds.

You must purchase Sonite 16 hardener separately to use this product. CLICK HERE

This product has a limited shelf life and should be used as soon as possible.
  • Metalset A-30 Mix Ratio: 100 Parts A30 to 8 Parts Sonite 16 by weight

Sonite 16 Hardener
 Sonite 16 Hardener
Sonite 16 Hardener
SONITE 16 Hardener is an amine blend which produces partial cure of epoxy resin A-30 A when cured at room temperature. It was designed, however, to obtain maximum physical properties after its recommended postcure.

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