Mad Moose Baits Posted April 17, 2018 Report Share Posted April 17, 2018 So I tried to vulcanize a mold without the pres. I mad my own cad using a 12" flange joint and aluminum discs to apply pressure. First attempt I bolted down my lid against the discs to apply pressure and I did get it to vulcanize, it is much harder and you can't mar it with a blade or screwdriver like you could when it was unvulcanized. However....it never "flowed" or appears to have liquefied like I am told it should. It did form around my masters but I am not sure how well, I have yet to try and cast with it. Is this a heat problem or lack of pressure? Quote Link to comment Share on other sites More sharing options...
LimpNoodle Posted April 17, 2018 Report Share Posted April 17, 2018 (edited) You need around 3000 psi depending on media type. Also you need specific amount of heat. Did you have a form around the media? I might be off on the pressure a bit but I know our vulcanizer had a 50 ton hydraulic jack and a massive frame. It was enough pressure that if you didn't have the mold forms aligned correctly it would destroy them and those suckers weren't cheap. Edited April 17, 2018 by LimpNoodle Quote Link to comment Share on other sites More sharing options...
Mad Moose Baits Posted April 19, 2018 Author Report Share Posted April 19, 2018 Yeah, had it in the can. baked it at 335 for over an hour... Quote Link to comment Share on other sites More sharing options...
