Before molding plastic, start by washing or wiping down the item you’re using so that you end up with a mold without bumps or unevenness. Once the item is dry, apply a commercial release agent to ensure that it will pop free from the mold. Then, coat it with a layer of Bubble Buster to prevent air bubbles before placing it in a heat safe container. Afterwards, melt the reusable molding material in the microwave and pour it into the container to create the mold. Finally, remove the mold from the container once the molding material cools and hardens. To learn more, including how to mold plastic items using silicone, scroll down. Did this summary help you?YesNo

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Hello Cosplayers, Makers, and more. Thomas demonstrates how to use moldable plastic from Polly Plastics. Moldable plastic melts easily in hot water and can be used for costumes, prototyping, repairs and more.

Molding plastic is a fun, inexpensive way to create unique pieces or replicas of your favorite items. You may purchase a mold or create your own custom molds out of reusable molding materials, silicone, and or plaster. Cast your mold with plastic resin, wait for it to cure, and then remove the mold to reveal your creation.