Moldmaking and Casting Materials - Mother Mold

Provide strength and support for your mold without using plaster. Use Por-A-Kast as a mother mold to replace plaster, foam, and other traditional support materials. Also, use it as hand lay-up material for casting.

A two-component fiber resin designed for vertical surface application without sagging. This is ideal as a mother mold/support shell or laminating material. Cures quickly to a strong, durable, lightweight plastic. 1:3 mix ratio by volume.

Welcome to the world of mold making and casting! These Starter Kits from Smooth-On give you step by step print and video instructions, plus all the materials you need to get started. Great for a variety of uses.