mark poulson Posted July 18, 2014 Report Share Posted July 18, 2014 (edited) Can I use a polyester resin, like Solarez or surfboard fiberglass resin, to make molds for lead? I know it works really well for molds for soft plastics, but the temps in pouring lead are much higher, so I thought I'd ask first, before winding up with molten lead all over the place. Edited July 18, 2014 by mark poulson Quote Link to comment Share on other sites More sharing options...
robalo01 Posted July 18, 2014 Report Share Posted July 18, 2014 Poly resin alone will burn. Check out a thread from a couple of days ago entitled "making bondo heat proof" Vodkaman makes some good points. Quote Link to comment Share on other sites More sharing options...
