I get it at my local auto body supply store. I've seen it there many times. Usually not just parts stores.

I think Carquest carries the 3m paste.

 

I just couldn't wait.....new car excitment ya know. Went out and got a clay bar this morning and did everything all over. Smoooooth ! I gotta say tho, that 3M is awful hard to remove completely. It leaves smudge like streaks that are hard to remove. Not sure if i'm gonna use it next time or not. I wonder if the paste is any different in that regard.

 

Probably not. Pastes are a little bit more difficult to remove from paint.