How to make your own rubber parts at home: If you are generally handy and curious in nature, you can make your own rubber parts. Here are the steps:
1) Make the mold out of wood, aluminum, plastic, cardboard box or clay...
2) Mix part A and B. They will start to harden so work fast.
2) Pour the mixed A and B to the mold.
3) Let it harden.
Silicone rubber can be used to make candle molds, soap molds, cold cast bronze sculptures, concrete and plaster casts, wax casting for foundry and jewelry lost wax process, casting polyurethane, epoxy and other resins.
Silicones are especially good for their self-releasing characteristics. Which means that casting resins will not stick to the rubber after it is cured. Also, for many applications silicone will out live polyurethane mold materials. Silicones are preferred by rapid prototypers for their ease of use and predictable accuracy. Hobbyists also enjoy silicones because many silicones have shorter curing times.
Polyurethane rubber molds are great for concrete molds and stamps, plaster casting or other applications that involve high abrasive materials. Polyurethane molds are often used for architectural restoration, taxidermy, and artists in a wide range of applications where making repeated copies is important.
Latex rubber is popular with artists doing statuary pieces in either plaster or concrete. Latex is a tough natural rubber that can produce high surface detail.
Alginate mold material is usually a one time use product. It is safe for skin contact with most subjects. Plaster or other gypsum casting media are generally used with alginate mold compounds.
We have assembled a Make Your Own Rubber Starter Kit with the beginner in mind. If you have never made a mold or casting before, you can now get started with all the products you need in one convenient package.
The Prop Builders Molding and Casting Handbook is a very informative reference book. There are interesting hints and tips on mold making and casting all kinds of objects. The book is fully illustrated and each section is well explained and thought out. There are even instructions on how to build a vacuum foam machine.
The kit supplies you with enough mold material to make a good-sized mold or several small ones. It is a fast curing 1:1 by volume soft rubber that is easy to mix and pour. Our molding compound is very low in viscosity so it will virtually de-air itself for a bubble free mold.
We also include 16 ounces of 1:1 by volume casting resin that pours almost like water. This resin mixes easily and has a 1-½ minute pot life and a 5-7 minute cure time. Your castings can be de-molded in 10-15 minutes.
Also with the starter kit is one pound of non-hardening re-useable clay, stirring sticks, and mixing cups. We also provide you with instructions that will help you understand how each product works.