I don't know if I received the wrong batch or if the product was mislabeled but the plastic sheets I received have not shrunk regardless of the temperature used. There was a film left on the sheets which I removed before drawing on the sheet and heated the sheets as recommended in the reviews. However, it has been found that plastic films are not made from the correct plastic composition to melt and shrink easily. My suggestion is to spend a few cents more and get a product that confirms the polyurethane content of the plastic.
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