bassman843 Posted January 17, 2007 Report Share Posted January 17, 2007 has any one tried making molds out of bondo. I heard they aren't easy to use but they work Quote Link to comment Share on other sites More sharing options...
braveviper Posted January 17, 2007 Report Share Posted January 17, 2007 Its the best for your buck.You can get a couple dozen pours in before it starts to come apart.Im assuming your pouring lead?The key is to put the master in at the right time.Too early and it will sink...Too late and it wont go in.Its like that. Quote Link to comment Share on other sites More sharing options...
Dan_T Posted January 17, 2007 Report Share Posted January 17, 2007 I use a mixture of 75% Bondo with 25% fiber glass resin to make soft plastic molds. The fiber glass resin thins the mixture which helps to pick up better detail. You can use either the hardener that comes with the Bondo and or the hardener that comes with the resin. I use a little more than half the hardener the directions on the can calls for. This will slow the curing down but it helps to cut down on the warping you will get if it cures to fast. Quote Link to comment Share on other sites More sharing options...
Travis Posted January 17, 2007 Report Share Posted January 17, 2007 They work fine and pick up detail ok. The problem is that they get hot quick and then get soft. I have if for several molds because it is about the quickest way to get a pourable mold if in a hurry. Quote Link to comment Share on other sites More sharing options...
Dan_T Posted January 17, 2007 Report Share Posted January 17, 2007 Are you wanting to make molds for lead or soft plastic? I have never tried to use them with lead but I use them often with soft plastic without a problem. Quote Link to comment Share on other sites More sharing options...
bassman843 Posted January 20, 2007 Author Report Share Posted January 20, 2007 I was wanting to pour plastic Quote Link to comment Share on other sites More sharing options...
