vishezfish Posted June 25, 2004 Report Share Posted June 25, 2004 Just wondering if you guys know long u would put your mold in the microwave to warm it up before pouring your plastic...?? Or does it depend on your thickness, or length.. I don't want the mold to crack..... Thanks! Quote Link to comment Share on other sites More sharing options...
siebler_custom_baits Posted June 25, 2004 Report Share Posted June 25, 2004 what kinda mold is it? i would recomend just making a couple pours with single color or trash plastic to warm the molds. Quote Link to comment Share on other sites More sharing options...
vishezfish Posted June 25, 2004 Author Report Share Posted June 25, 2004 It is a plaster mold.... I thought about that too, using a bunch of plastic to heat it up, then use the good stuff.... Just was wondering if there was a better way to save time!! Quote Link to comment Share on other sites More sharing options...
siebler_custom_baits Posted June 25, 2004 Report Share Posted June 25, 2004 it will only take a few times to get it warm. i would just do this. no way to damage mold this way. Quote Link to comment Share on other sites More sharing options...
Tm Customs Posted June 26, 2004 Report Share Posted June 26, 2004 I found microwaving RTV scillicone molds for 45 seconds really helps, especially when pouring veins and 2 tone colors... If you dont like this method you can just pour them 4-5 times and they will be hot but this works better for me. Tm Quote Link to comment Share on other sites More sharing options...
BigZ Posted July 3, 2004 Report Share Posted July 3, 2004 RTV molds will lose a lot of their lifespan if you heat them a lot. The finish will dull and your mold will be shot a lot sooner if you heat them. The reason for this is that the silicon oil leeches out of the RTV. It might give you a better finish right away, but your molds will hold up better if you just pour a bait or 2 of trash plastic first before you get down to the pouring. Some guys recommend placing the mold in the oven at 350 for less than 10 minutes every once in a while to release the oils and make the molding surface slicker. Quote Link to comment Share on other sites More sharing options...
