Smooth-On

Smooth-Cast ONYX Black Polyurethane Plastic

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100 % of 100

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Size

Grouped product items
Smooth-Cast ONYX FAST - Trial Size
Net Weight: 1 Kg
14 in stock
NZ$69.99
Tax included
Qty
Smooth-Cast ONYX FAST - 1 Gallon Unit
Net Weight: 7.48 Kg
2 in stock
NZ$399.98
Tax included
Qty
Smooth-Cast ONYX SLOW - Trial Size
Net Weight: 1 Kg
16 in stock
NZ$69.99
Tax included
Qty
Smooth-Cast ONYX SLOW - 1 Gallon Unit
Net Weight: 7.48 Kg
5 in stock
NZ$399.98
Tax included
Qty

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.

Advantages that ONYX™ resins offer over other resins:

  1. if you desire a black casting, adding color pigment is not necessary
  2. cured plastic is ultra-black and darker than competitive black resins
  3. cured ONYX™ plastic can be polished and buffed to a high gloss shine
  4. ONYX™ offers higher heat resistance vs. competitive black resins
  5. unlike other black resins, ONYX® does not contain mercury
  6. ONYX™ is less expensive vs. other black resins.

Applications include reproducing sculpture, making prototypes and potting / encapsulation. Due to it's quick cure time and hardness, ONYX™ is a good choice for creating fast cold cast bronze, brass, copper, nickel or silver effects.

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  1. Rating
    100%
    Liquid Plastic
    I FOUND WEIGHT MIXING WITH THE ONYX WAS BEST , HAPPY WITH THE REPRODUCTION OF SMALL PARTS FROM THE MOULDS.

    Review by

  2. Rating
    100%
    Easy to use but some stickyness
    Works well, easy to use, measure, mix and pour.

    One problem for my application - filling in some worn areas in wood - was that, while it cures as stated in the instructions it developed a sticky tacky surface which I'm not sure Ill be able to sand down given the gooey surface,

    Fortunately I tried a test application first. Can you offer some advice as to how to overcome this effect.

    Review by

  3. Rating
    100%
    Fast Onyx Black
    Have been using Smooth Cast 300 (white) which is borderline too fast to use and this is even faster. Even at 1:1 by weight. So if you need any time to mix etc, use the Onyx Black Slow.

    Review by