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Mold Making Tutorial: How To Make a One Piece Silicone Rubber Mold

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Uploaded on Oct 8, 2010

This mold making tutorial video shows how to make a one piece silicone block mold using Mold Star 15. The finished mold can be used for casting resin, wax, foam, and many other materials.

Use hot glue to secure the model. Glue the mold box to the base. Dispense equal amounts 1A:1B by volume. Dispense Parts A & B into mixing container. Mix Parts A & B as directed. Slowly pour into one corner of the mold box. Pour 1/2 inch (1.25cm) over model's high point. Allow Mold Star 15 to cure. Carefully remove the mold box. Slowly peel back the cured rubber. Mold Star 15 reflects perfect detail.

Mold StarĀ® 15 is an easy to use Shore 15A platinum silicone that is mixed 1A:1B by volume (no weighing scale necessary). It features a relatively low viscosity and vacuum degassing is not required for most applications. Pot life is an extra-long 65 minutes.

Mold StarĀ® 15 cures overnight to a soft, strong rubber that is tear resistant and exhibits very low long term shrinkage.

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