The box says it measures .070", so it's basicly 1/16 of an inch. That's not very thick, but the difference is amazing. The aluminum is thick enough that you will want to wear gloves or it will cut pretty easy.
I decided it would be worth it to spend the money on something that I don't have to worry about coming down on my head in the heat. Peel n seal seems to melt in the heat too easy.
If I had lots of money, I would double up on the Thermo coustic.
