Smooth-Cast™ ONYX™ Series

Ultra-Black Urethane Resins

Smooth-Cast™ ONYX™ is a mercury-free urethane resin that cures at room temperature to a deep black, solid plastic. ONYX™ resins offer the convenience of a 1A:1B by volume mix ratio and have very low viscosities, so they are easy to mix and pour. ONYX™ resins have an ultimate Shore hardness of 80D and offer higher physical properties and higher heat resistance vs. other general purpose resins. ONYX™ resins are available in 2 speeds. ONYX™ SLOW resin has a pot life of 5 minutes and a cure time of 90 minutes.

Smooth-Cast™ ONYX™ Series - Ultra-Black Urethane Resins

Products | How-To Videos

  1. Smooth-Cast™ ONYX™ FAST

    Ultra-Black Urethane Resin

    • Starting at £30.56

      *Vat Included
  2. Smooth-Cast™ ONYX™ SLOW

    Ultra-Black Urethane Resin

    • Starting at £30.26

      *Vat Included
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