woodenfeather Posted February 6, 2005 Report Share Posted February 6, 2005 I read an article in an old tackle making book recently that suggested using plaster of paris to make a two part jig mold. My question is has anyone here tried it and with what results? Also since the book was relatively outdated is there something better to use that would be more heat resistent? I've used wood in the past with great results but I want to capture some details that I wouldn't be able to carve in the "negative". I appreciate any input! Quote Link to comment Share on other sites More sharing options...
siebler_custom_baits Posted February 6, 2005 Report Share Posted February 6, 2005 ive done it but to me having to clamp the mold together every pour was a pain. Others suggest using water puddy or bondo instead because it does not break as easily when clamped. Quote Link to comment Share on other sites More sharing options...
ROCFISH Posted February 7, 2005 Report Share Posted February 7, 2005 Plaster of paris works but its a long process. The plaster has to dry out completely, takes about a week and the molds don't last long. Bondo is much faster, I made molds and poured these trolling heads in one day no problem. Quote Link to comment Share on other sites More sharing options...
woodenfeather Posted February 7, 2005 Author Report Share Posted February 7, 2005 Thanks for the info guys. I like the bondo idea, especially since i've got a big can of it somewhere around here. It never crossed my mind to try it. That's what makes this place such a valuable resource! thanks again! Quote Link to comment Share on other sites More sharing options...
dtrs5kprs Posted February 7, 2005 Report Share Posted February 7, 2005 Would that be bondo filler or resin? Quote Link to comment Share on other sites More sharing options...
ROCFISH Posted February 7, 2005 Report Share Posted February 7, 2005 The can said Bondo Body Filler. Its for repairing auto bodies. Two part mix, dries hard in about 10 minutes. Molds can be used almost immediately. I don't believe the manufacturer intended it for mold making, but it does work very well. Of course the molds are not anywhere near as durable as cast metal molds, but for 5 bucks, I'm satisfied, and there is no waiting involved. Just make your model, cast your mold, and produce your lead head. Quote Link to comment Share on other sites More sharing options...
charkins Posted February 8, 2005 Report Share Posted February 8, 2005 I made plaster molds for making jigs many years ago. It was a real pain in the butt and they didn't last long. The only thing that I can say good about them is that they are good for making prototypes. Other than that, try to get some aluminum molds. They are much better. On another note, I have been using Durham's water putty to make molds for soft plastics. When baked, it makes a real hard mold. Don't know how long it would last, but I know it would be better than plaster. Hope this info helps. Cal Quote Link to comment Share on other sites More sharing options...
