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AlbyDogGone

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Hey guys, I was going to get some RTV and I was wondering if it works pretty easliy with a clay master. What sort of mold release works the best? This is just for a one piece mold, with the flat side clued to the bottom and..you know the drill :? .Is this easier than resin? Any input is appreciated

Thanks

Alby

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Is this easier than resin?

Depends on the brand, Some RTV brands require 10:1 mix ratios, some require 50/50, some require other ratios.

Most polyester resins are 10:1 but that varies by brand also.

Plasticine clay is a good material to use with RTV, however Resin will melt it as it cures.

Dont use Sulfur based clays (organic) they will react with the RTV & it wont cure...ever.

If your gonna use RTV to start out, I'd look for a 50/50 (A/B) mix.

good luck alby

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Have tried a couple of RTV's, including a 1:1 mix. Best one I have found is the one Lurecraft is selling...mixes well, cures well, holds up well, price is not terrible. Don't get to confused on mixing, mostly 10:1. Just get an oral syringe from a pharmacy (kid's dose syringe), will give plenty of accuracy for drawing up the catalyst. Can measure the RTV base in pyrex with good accuracy.

I have used RTV and hardener with, and without color (the blue stuff). I think it is a little easier to mix and make correctly with the color additive, lets you know when your mix is well blended.

The clay I have the best results with is Van Aken Modeling Clay (Michaels, Hobby Lobby, etc). It never hardens, shapes well, and is heavy enough to hold well to the botom of the mold container. Listed specifically on the packaging as compatible with silicone mold compounds. No mold release necessary. It is the clay I used to proto the drop shot baits I have posted in the gallery...went from proto straight to the first RTV mold.

www.vanaken.com

Hope it helps.

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