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  • ComposiMold-Firm
  • ComposiMold-Firm, Easy Instructions
  • The firmness of ComposiMold-Firm makes it the perfect choice for the push mold technique.
  • Push Molding with Modeling Compound.
  • Rapid prototyping with the push mold technique.
  • Polymer clay ornaments made in a ComposiMold-Firm mold.
  • ComposiMold Firm is great for push molds!

ComposiMold- Firm Re-usable Mold Making Material


Product Description

Great for Polymer Clay Push Molds, Clay Molds, and Fondant Mold Making.

ComposiMold-Firm is a firm mold making material that can you can simply remelt to reuse. It is also a 100% reusable mold making material that works by melting and pouring. Many casts can be made using the same mold. ComposiMold-Firm is an excellent material for those wanting to learn and become involved in sculpting, modeling, and mold making without having to worry about mistakes or wasting material. ComposiMold-Firm is a rubbery, thermoplastic that is great for small mold parts that require a stiffer mold making material. A stiffer mold is often required when using the push mold technique because pressure on a more flexible mold might deform the mold. ComposiMold-Firm is compatible with many different casting materials including clays, plaster, cement, epoxy, polyurethane, and many others.

PowerMold is Perfect For:

  • 2 part molds
  • Polymer clay molds
  • Push Molds

It's Shore Hardness is approximately 25 at 70 F. Color is semi-transparent dark amber. Melting temperature is 130 F. The part solidifies when the temperature cools. To speed up cooling, place the mold in the refrigerator or freezer. PowerMold conforms to ASTM D4236, Safe as an art material.


Click Here for ComposiMold SDS (pdf)         

Download Instruction Sheet (pdf)         

FAQs for ComposiMold


ComposiMold-Firm 2 Part Dog Figurine Casting using Resin 04:33 Using ComposiMold-Firm Re-usable Mold Making Material to make a two part mold of a dog figurine and how to cast it with urethane casting resin. The process begins by preparing your master for molding by sealing with a shellac or urethane spray if necessary. Spray with mold release and let the mold release dry if necessary. Then spray with Bubble Buster to reduce bubbles from adhering to your master. Place your master in a mold box. If necessary, glue the part down with hot glue or use some polymer clay to hold it in place. Melt the ComposiMold. For this little amount of ComposiMold, we melted it for 2 minutes, using 1 minute intervals (with a 700 watt microwave). Times will vary depending on where you are and the microwave you are using. After pouring your ComposiMold around your part to make the mold, let it cool to solidify. Cut the mold with a knife, exacto knife, or razor blade. This cutting line will be your parting line so be careful and always cut away from you for safety. Mix the two urethane parts together as directed. This urethane was mixed in equal parts by volume. The syringe helps get the urethane resin into the small openings of the feet. Let the urethane cure. Time will vary depending on the type of urethane. For fast curing resins or larger castings, you may want to cool the ComposiMold in the freezer first to reduce the exotherm and protect your mold. When finished, admire your castings. ComposiMold can be remelted to make new molds whenever you are ready. To Order: Thank you!

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Product Reviews

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  1. Im using this for my polymer clay 5 Star Review

    Posted by on 8th Jan 2017

    This works great for my homemade polymer clay medals. Its stiff enough so that it doesn't deform but also flexible enough that I can easily pop the clay right out.

  2. Firmness is nice. Reusability is awesome. 5 Star Review

    Posted by on 8th Dec 2013

    Power-mold works well for polymer clay push molds. You can make a variety of molds with the same material! It just remelts to make a new mold! It makes a very strong mold.

Why ComposiMold for Mold Making? Because it works