[jdswarrior]

Just bought this blaster and want to use it to remove rust off roof and two qtr panels. Tried airplane stripper and DA sander 50/80 grit - rust is still there. Heard TS black diamond coal slag is good media to use Does anyone know what size nozzle is needed for the 20/40 bag? I believe the 30/60 bag at tractor supply states 1/8 inch nozzle but the 20/40 does not have requirements. It comes with .78, .98, .118 and .132 nozzles I'm assuming 20/40 is coarser than 30/60 and if 30/60 recommends 1/8 or .125" nozzle - 20/40 would need a slightly larger one - hopefully the .132 will be ok - if anyone has any experience with this media - please pass on the info - thx also purchased a dedmans valve - but that seems like it need a lot of hand pressure to keep it upen vs the ball valve that caane with the abrasive blaster

[ogre]

home depot sells sifted masons sand in fine and coarse grades, maybe $5/bag
all we use for our pot and our blast cabinet