Groucho Posted October 8, 2015 Report Share Posted October 8, 2015 At what temp. Should the molds be to start pouring plastics. Thanks Quote Link to comment Share on other sites More sharing options...
JRammit Posted October 8, 2015 Report Share Posted October 8, 2015 What kind of mold are you pouring? Quote Link to comment Share on other sites More sharing options...
mark poulson Posted October 8, 2015 Report Share Posted October 8, 2015 I start with my molds, both pop and aluminum, at room temp., whatever that happens to be in my garage. The first pour heats them anyway, and I don't pour fast enough for it to be a problem. Quote Link to comment Share on other sites More sharing options...
Groucho Posted October 8, 2015 Author Report Share Posted October 8, 2015 My mold is aluminum Quote Link to comment Share on other sites More sharing options...
DF1 Posted October 8, 2015 Report Share Posted October 8, 2015 If you are doing a single color cold molds are fine, like Mark said they heat up enough after a pour or two. For multi color pours I like to heat my aluminum mold until its toasty warm, just to help the plastic flow better and to prevent cold cracks. The down side to heating your mold is it takes a while for it to cool enough to de-mold. 1 Quote Link to comment Share on other sites More sharing options...
