How to clean tires before duct taping them?

[nastety92]

I've tapped a few sets of tires so far. When using a new set of tires I didn't use anything to clean the tires. Just Gorilla Tape and that was it. It is very strong and does not seem to have any problems sticking.

If they were used tires I would clean them with soap and watch and maybe a little wipe off with alchol or prepsol.

Good luck,
Nick