Works great, the paper backing is easy to cut and peel and easy to work with (but like aluminum foil, just be careful not to put too much pressure on the crease , otherwise it will tear or split easily, press it and don't use nail, otherwise it will break). Worked great and even used it to cover up all the very sharp metal edges on the AC oven/oven after they installed it. Used it to completely cover a rusty vent that let hot/cold air into the basement. This is good and makes heating/cooling more efficient. Note: It will not stick to silicone sealant.
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