When you finish using a foam cutter, turn it off. The hot wire should cool down in a few seconds. Gently wipe down the hot wire with a soft cloth or paper towel to remove any leftover residue. | When you finish using a foam cutter, turn it off. The hot wire should cool down in a few seconds. Gently wipe down the hot wire with a soft cloth or paper towel to remove any leftover residue. |