Conclusion plastic type PE or Polyethylene has opaque white translucent, smooth it on itself when the touch was slippery, flexible as well. And, most importantly, no smell, and taste, and not on the print. Toughness, but tolerate heat much (< 100 C), but the corrosion resistance of the chemical. (Chemical) is a very good electrical insulation color blends easily with lower density water will float.
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