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Best Material For Making Lead Casting Mold?

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Red high temp silicone is the best silicone wise. If you're trying to make jigs bondo is pretty good. You can mix a little fiberglass resin to make it easier to work with. I did a ten oz butterfly jig a few years ago. Poured a few hundred jigs with one and then moved on to aluminum cnc because I wanted to sell. Cost about a dollar per mold using bondo and you can get a lot of pours out of one mold. Its a good idea if you haven't made two piece molds to get on YouTube. Tap plastics and smoothon silicone have some good tutorials.

Edited by andy1976

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Thank you, Andy!

What do you think about next method:

Mold made from gypsum. There are no comments but everything clear from video.

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I'll try bucktail heads form 1/2 to 2oz and bodies for inline spinners from 1/2 to 1oz

Thanks everybody for response!

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