I just used some for the first time the other day. I was having trouble till my boy Frankie, 20 yrs a body work man...took one look at the 33 gal compressor and told me to stop being a pussy and crank it up...110-125psi and everything worked beautifully...the guys that strip stuff are just being careless and fast. It is pretty easy to know when to back off. Hope this helps.