gone2long Posted February 22, 2009 Report Share Posted February 22, 2009 (edited) Just wondering if anybody has tried to make a mold from clay slip. Sounds like if do-able you could go to a local pottery place and have it fired, seems that would make a nice solid non-stick mold. Sorry this might belong in tools:o Chris Edited February 22, 2009 by mrbilky Quote Link to comment Share on other sites More sharing options...
criggster Posted February 22, 2009 Report Share Posted February 22, 2009 I believe you would have much better success with regular clay rather than slip. I did make a prototype for a bait using regular clay and did pour a few baits with it. It was not fired, but worked OK. The problem with the mold I made was the plastic wanted to penetrate the pore spaces. I do believe that if you fired it and glazed it you would have a very durable mold. Two pieces would be trickier to make. Quote Link to comment Share on other sites More sharing options...
bojon Posted February 23, 2009 Report Share Posted February 23, 2009 You could get a nice slick finish,but you would have to remember it will shrink a whole bunch on firing.Almost half,but not sure.It has been a long time since I had anything fired. Quote Link to comment Share on other sites More sharing options...
Richard Prager Posted February 23, 2009 Report Share Posted February 23, 2009 I would try using a high fire clay. Shrinkage should only be about 12-15%. It should work just fine for a one sided mold. I wouldn't use glaze because it is too thick. I would just seal it with either 50/50 Elmers or thinned epoxy. Quote Link to comment Share on other sites More sharing options...
