sandblasting pressure
 

Just wondering if there was a certain air pressure to use when sandblasting? I am blasting the underside of the floor, the firewall and the inner wheel tubs.

go at it, you will not hurt any of those panels, i use 100 psi in my pressure pot blaster

100 should do it ..

Pressure is only part of it. You need large amounts of cfm. That is why people who do it professionally have those tow behide rotary screw compressors. They run around 90 psi and 100 or higher cfm.

true however my 7.5 hp two stage compressor pushed my 90lb pressure pot just fine, it can go thru 90lbs of sand without slowing down, then refill blaster and start again. but do not try it on anything smaller then a 5hp 80 gal 2 stage compressor