Cast molded mould silicone rubber is used in large and small sculpture molds with high temperature resistance

Cast molded mould silicone rubber is used in large and small sculpture molds with high temperature resistance

Silicone RTV mold making rubber may soak into a porous surface like wood or plaster. To prevent sticking, first seal the part with a sealant appropriate to the material.

Generally, silicone RTV mold making rubber does not stick to anything, and nothing will stick to it. The exception is that it will stick to itself, other silicones, silica, and glass. Mold release will prolong the life of your mold by reducing the wear on the mold by making it easier to remove your cast piece.

Applying Brushable RTV Silicone:

Brush a small amount of mixed silicone onto the part for a very thin “detail coat”. This will capture all the fine detail of your part. O

nce the detail coat cures, apply a thicker (about 1/8”) coat of silicone onto your part.

When the silicone has cured, you can pull the mold off your part like a glove.

Brushable silicone molds usually need a mother mold, a hard outer shell that holds the brushable mold in place while you pour your casting resin into your mold.

Mother molds can be made from fiberglass, plaster or specially formulated urethanes.

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