http://www.go2itnetwork.com/rtv-mold/

Does an unclean RTV mold affect the quality of resin?
I’ve been recasting with the same molds over and over again because I can’t seem to have a perfect duplicate. The first time I’ve used the mold I got a really nice smooth surface but now after I’ve recasted and used the mold several times I seem to be getting a lot of air bubbles and the resulting product has a tacky surface (as if it was made of chalk)
I clean my molds with Tack Remover, I use an old toothbrush to get into the details and then wash it off with lukewarm water…is there a better way to clean my RTV molds?
I use silicone molds and all I have to do is wipe them with 200 proof alcohol.
Types of RTV Mold Rubber for Mold Making and Casting, Pros & Cons
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RTV Mold Release $4.32 ALM42402 RTV Mold Release by Alumilite Corp 1oz bottle. Use the Rubber to Rubber Mold Release between pours of silicone to ensure the two pours do not adhere…. |
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Modeller’s Guide to Mould Making and Resin Casting $9.17 An in depth manual for modellers that takes the reader through all of the practical aspects of mouldmaking, using materials such as latex and RTV. There is extensive coverage of casting, too, enabling the modeller to produce perfect duplicates from their original pattern. While the text is aimed at mouldmaking and resin casting, covering both simple one and two part moulds, there are other casting… |