Pressure pot is perfect for resin casting, not real sure why some are saying it is not. I did not attempt to unscrew the paint tube because I didn't want to break any seals and risk air leakage so I simply used my $9 pipe cutter, you just spin the little cutter around the pipe. I paired this up with a small air compressor from Harbor and just bought the needed hose and fittings. I also bought the uxcell m8 rubber feet..much nicer and easier to move now. The pressure pot works great for resin...it does exactly what it supposed to. Now....jump ahead a few weeks and I am noticing a slight pressure drop by next day. I'm starting @ 55 psi and by next day it's @40...resin is still bubble free but I can't figure out where it's losing this small amount of air. Also...the only comparable actual pressure pot for resin is about $200 so this is a bargain. Otherwise you have to convert the lid fittings on a paint pressure pot...diyi method.
Jesse 
