There are many types of plastic and each is made of a different “soup” of chemicals. Each sample of unbaked polymer clay was pressed to the plastic surface and left there for one month. For the tests featured below I used the following polymer clays. Quite often I find a large difference between brands. So when I do any tests, I do try to use several brands of polymer clay to see how each of the brands reacts. I have found that different brands of polymer clay have different chemical compositions and use different plasticizers. If you place a piece of raw polymer clay onto the surface of an incompatible plastic, the plasticizer can actually soften that plastic and cause it to “melt”. Plasticizer, by the way, is a chemical that makes plastic soft and flexible.
#Deathmetal polymer clay free#
But uncured polymer clay has free plasticizer. After oven curing, the plasticizers become locked in and fused with the PVC particles, making them (mostly) inert. Polymer clay is PVC powder suspended in a mixture with plasticizers, fillers, binders, pigments, and lubricants. How Does Polymer Clay Eat and Soften Plastic? I then stuck pieces of raw polymer clay onto the plastic and waited a month. So to help figure this out, I dug through our recycle bin and looked through our house to find all sorts of plastics. What plastics are okay with polymer clay? And if plastic is so bad for use with polymer clay, then why does it come in a plastic wrapper or clamshell box? Doesn’t the polymer clay eat the plastic packaging? There is no doubt that it’s confusing when trying to figure out which plastics that you can use with polymer clay and which plastics will degrade, melt, or get sticky.
You’d think that polymer clay is a toxic sludge that’s going to eat through anything it touches ( it’s not). Many plastics will melt if touched by polymer clay. Don’t store polymer clay in plastic! Polymer clay is incompatible with plastic boxes. I’m sure you’ve all heard the ominous warnings.
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