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Am I melting my plastic correctly?

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Im pretty new to this and want to make sure im doing it right.

I went to Walgreens and bought a single buner to melt my plastic's w/. I pour the plastic into my pouring pan and place on the burner. for about 5min the liquid plastic stays in a watery state. Than it starts to clump up and than it starts to get liquidy again. Is this normal for it to go thru these 3 states?

Im not sure if the heat setting im using is to hot or not hot enough.

Thank you

-Jay

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Yep! all is normal. I had a hard time with my burner and metal pans, if I was not stirring all the time the plastic would burn. I would suggest getting a heat diffuser it will help you from burning the plastic. It will also give you more working time. You can pick them up for under $5.

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I too have just started pouring my first plastics from new Calhoun material (I've reused old plastics until now), and I'm curious about the smoking. From what I have read before I got the impression that ALL SMOKING was bad and to be avoided. Is this true?

But if I kept the temperatuure down so that it was smokeless, the plastic was too thick. And yet, if I raised the heat setting to get the fluidity I needed I got smoke. (Not a lot, but enough to keep a fan busy). I too am using the Walmart heating plate - and it works OK. Did I get scorching? No - but I did get smoke. So - tell me, is that normal?

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I was at Walmart looking for a heat diffuser and came accross some griddles with heat controls. Seemed they went to 400 degrees. Has anyone tried using a griddle? They should give an even heat accross the entire surface and plenty of room for a number of pyrex type measuring cups. Pop

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If you check the posts under this subject, you will note that others are putting their pyrex cups on the burners but some are using diffusers to make the heat more even so not to break the pyrex. It seems to be working. I believe Chris from Alsworms does his that way. Hopefully we can get more feed back because I am doing much better with the pyrex cups that the pouring pans. Actually I like the Anchor Hocking spouts better. Pop

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Hi Pop,

I probably didn't explain myself very well. I don't put the pyrex cups directly on the burner. I use pyrex in the microwave for initial heating only. The only difference is I transfer the plastic from the pyrex to the 4 ounce tip cups (the cheapies you get at Lure Craft), then place those on the burners. Most of my pouring is done with those tin cups. I've never had much luck with putting the pyrex cups on the burners because I keep them pretty hot and it will burn the bottom of my cup.

Chris

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