microtek60 Posted February 27, 2007 Report Share Posted February 27, 2007 Can someone explane vulcanizing to me please? Is this done with the jig in the mold that you are making? Quote Link to comment Share on other sites More sharing options...
v muscari Posted March 2, 2007 Report Share Posted March 2, 2007 I can expain all this to you or tell you the books if you like I am not sure about posting and how this site works just yet Van Quote Link to comment Share on other sites More sharing options...
reeves Posted March 2, 2007 Report Share Posted March 2, 2007 I'll try to explain. When vulcanizing silicone rubber, it goes through a transformation from a soft to a hard rubber. There are many different types out there that can be used. Some start out in a taffy consistency while others are already much stiffer like clay or putty. The silicone that I use to make spincast molds is vulcanized under extreme pressure and heat at 325 degrees for a little over an hour. RTV (Room Temperature Vulcanization) silicone is mixed with an activator and takes approximately 24 hours to cure at room temp. Yes, the jig (model) is in the silicone during the vulcanization process. Once vulcanized, the model is removed so it can be used as a mold for pouring other jigs. I hope my explanation gives you a crystal cloudy clear idea of what happens, did my best. Quote Link to comment Share on other sites More sharing options...
