Gum on mat?
#2
take a clean white terry cloth...
towel,get it wet,ring out as much of the water as you can. lay as single layer of the towel over the gum. take a iron and rub it lightly over the towel and then rotate the towel to a clean area and repeat the procedure until all the gum has become soft and adhered itself to the towel...good luck
#4
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