JMS Julio Posted January 17, 2014 Report Share Posted January 17, 2014 Has anybody figured out how to keep the glitter from folding over. Is all the glitter we purchase at the suppliers crappy or am i doing it wrong. I have tried adding it after the plastic was hot, have tried not heating up the plastic past 340, 330, 320, and still folds over. Any suggestions from the soft plastics guru gods. Quote Link to comment Share on other sites More sharing options...
Apdriver Posted January 17, 2014 Report Share Posted January 17, 2014 The secret is not getting the glitter too hot. If you take it to 350+ you may get curling, shrinkage, and color loss. Quote Link to comment Share on other sites More sharing options...
gone2long Posted January 17, 2014 Report Share Posted January 17, 2014 It should be high heat polyester glitter, craft glitter is hit or miss. 1 Quote Link to comment Share on other sites More sharing options...
JMS Julio Posted January 17, 2014 Author Report Share Posted January 17, 2014 I am using all high heat glitter. Stiil same results. As i described earlier have heated to all different temps same results. Quote Link to comment Share on other sites More sharing options...
gone2long Posted January 17, 2014 Report Share Posted January 17, 2014 Where did you get it, I've never had a problem with it sure sounds like something is amiss it should not curl especially during the first or second heating cycle. I would question the supplier. Are you using a microwave and if so what is the wattage? maybe it's super heating the glitter before the plastic ever gets to temp? Quote Link to comment Share on other sites More sharing options...
ipt Posted January 17, 2014 Report Share Posted January 17, 2014 almost all of it will curl if you heat it high. my personal experience is lurecraft has the highest heat tolerance. Quote Link to comment Share on other sites More sharing options...
gone2long Posted January 17, 2014 Report Share Posted January 17, 2014 I agree but 320-330 is not considered high in the world of plastisol the only other thing that may not be accurate would be the method in which the temps are being checked and that the plastic is much hotter but that being said, much higher would mean scorching and based on his description that's not happening. Quote Link to comment Share on other sites More sharing options...
Apdriver Posted January 17, 2014 Report Share Posted January 17, 2014 I took some holo to 380 the other day and it ruined the whole batch. The instant it hit the plastic lost all it's color. Turned a dull gray and looked terrible. Threw that batch away, started over and watched temp carefully. Definitely think your prob is either temp or substandard glitter. Quote Link to comment Share on other sites More sharing options...
alsworms Posted January 17, 2014 Report Share Posted January 17, 2014 Holo glitter is notorious for doing that. I've ruined many batches because of it. Always had to wait until the last second to add that stuff. JMS.......not to start a glitter war here, but (as mentioned), Lure Craft glitter as well as MF always worked for me........and that was after several re-heats. For starters, I'd work on spending more dough on a higher quality flake. Those temps you mentioned just simply aren't high enough to make the glitter curl, unless you have MANY re-heats and/or you're adding a bunch of salt. When salt is added, a higher heat is required to bring the plastic to a pourable state. Quote Link to comment Share on other sites More sharing options...
Razor Jim L Posted January 19, 2014 Report Share Posted January 19, 2014 Are you using aluminum molds and if so, are the cavities yellowish. The yellowing of the cavities is caused by excessive heat, in the range of 380 and higher. You need to control your temperature of the plastic and only add the glitter after you have reached your operating temperature. I like to shoot at 320 but I take my plastic to 350 then let it cool to 320 before I add salt and or glitter. Measuring your plastics' temperature is hard. If your operating out of pyrex cups, you have to stir and measure it at the same time. The microwave heats from the center out and to distribute the heat, you have to stir it. I operate out of Presto pots and am using the BAITJUNKYS.com Pro Control system. It took me a while to get the temperature readings of the PIDs figured out as I was testing the temps with infared guns, digital thermometers and candy thermometers. The 2 infared guns were between 10 - 12 degrees cooler. The 2 digital thermometers were about 8 - 9 degrees hotter and the 3 cheap candy thermometers were all with in a few degrees of each other. I programmed my PIDs based on the candy thermometers and haven't had any issues. If your temperature is to hot, your glitter will curl and even some of the non bleeding glitters will blend. Accurate temperature is very important for the clarity of your plastic and the condition of your glitter. To high of heat damages your plastics and glitters, and to low of heat prevents your plastic from curing correctly. Quote Link to comment Share on other sites More sharing options...
mark poulson Posted January 19, 2014 Report Share Posted January 19, 2014 Razor Jim L said, "I like to shoot at 320 but I take my plastic to 350 then let it cool to 320 before I add salt and or glitter. " That's what I do, too, to avoid over cooking the glitter. Quote Link to comment Share on other sites More sharing options...
TroutSupport.com Posted January 20, 2014 Report Share Posted January 20, 2014 Some of the craft glitter is labeled high heat... but only the ones you get from specific plastisol related companies can take the heat we put on them. The numbers for the others sound right... Quote Link to comment Share on other sites More sharing options...
alsworms Posted January 20, 2014 Report Share Posted January 20, 2014 As mentioned, anything labled "polyester coated" and you should be fine. Many craft store glitters are not polyster coated, while most bait companies are. I just kinda took that for granted as he said he was using a quality glitter......... Quote Link to comment Share on other sites More sharing options...
Geegeebaits Posted January 22, 2014 Report Share Posted January 22, 2014 Hi. What is the size of the glitter. If it is .035 or .062 it will curl for sure over 350 deg. Try adding a heat stabilizer to your plastic. Good luck. Quote Link to comment Share on other sites More sharing options...
