Denatured is primarily ethanol and is what most people use, to my knowledge. People have also been known to use 190 proof grain alcohol from the liquor store, w

Denatured is primarily ethanol and is what most people use, to my knowledge. People have also been known to use 190 proof grain alcohol from the liquor store, which is taxed differently (it costs a lot more) in the US because it can be consumed by humans safely. Rubbing alcohol is isopropyl alcohol, which I've never heard of anybody using. I'm not claiming that it won't work, but I've not tried it or heard of it.