Woody, I suppose it all depends on conditions. I had my son to use the stripping disk, after I tried it for an hour or so, and at about $8 a pop it would have cost me a fortune to strip the many layers off the panel! So, I started blasting. Which I have gave up after this one. I sold my pressureizde blaster and if wont' go in my blasting cabinet it goes to the "blasting man"!