This is a fast, easy way to make some free molds for concrete, hypertufa, plaster, etc. First decide what you want to copy. It must be something that can be painted with Acetone without melting. An example would be a brick or rock. Now get some of that blue or pink rigid foam insulation. You should try to get the 2 inch thick stuff if you want your mold to last. To begin just get whatever you can. Sometimes you can pick up a couple of scraps at construction sites for free. Clean your rock and be sure it is dry. This is important; water and acetone do not mix! Put your insulation on the table, and next to it put your rock with the side you want to copy facing up. Paint the rock with Acetone and VERY quickly place it on the foam. When it has sunk in an inch or two pull it out. Wait a while for the foam to harden up, and there is your mold!! Paint on some mold release (also known as 10w engine oil). Try not to have any puddles; they will cause holes in the concrete. You may have to play with this a bit to get the feel of painting and sinking your rock, but it works!! Copyright © 2005 Delmar Germyn. All rights reserved. Del Germyn - author. Web site http://www.delsmolds.com My web site is setup to help you and I learn more about molds and casting in general. There is... Articles on how to mix your concrete, hypertufa, etc for different uses. Free information on how to make your own molds. Tips and hints on their use and care. Free information on making and using various types of molds to cast concrete, plaster, cement,
ceramics, and molding with hypertufa. All the information on the site is free to use and share. I am hoping that when you see what I have (or have not) set out you will send in your tips and stories. By sharing we can all learn from each other. We can also help newcomers to the hobby / business.
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