Thread: Bought me a Harbor Freight Sandblaster.

Tweet

Originally Posted by shine

remember it is not heat that warps sheet metal. it is the anchor pattern . the harsher the media the more it peens the metal which stretches the surface. keeping at a 45 degree angle is all important.

Maybe a little bit safer to use the tiny acrylic/plastic shot, nut shells, or something "softer", Shine? Still, it's thousands of microscopic hammers on the surface with no dolly behind the panel.

your only trying to fracture the paint , not pit the metal. i use 35 lbs pressure and stay off the panel 2 ft and use very little media. but my rig is much larger. starblast is a very good media. very fine and will recycle about 4 times .
when blasting concentrate on peeling the edge of the paint back . blast at the edge at an angle not straight down.
i use type6 acrylic to remove paint .