Spray painting with SCUBA...

[TravisD]

Wonder if you could put an intermediate pressure air tank after the reg to store a larger quantity of air? Even a portable "air pig" should give you more consistent flow. Treat the scuba cylinder/reg as the 'compressor' - it can catch up in between trigger pulls on the paint gun. Add in another reg+cylinder in parallel to feed the system and you'd get more flow and less chance of freezing anything up.

 

[sea_ledford]

OK back in town and can get you the correct details:

Spray gun
...

If you are using smaller 12L tanks or multiple tanks manifolded, just redo the numbers as above to get an approximate run time for your spray gun!
Have fun

Yeah, yeah, yeah. Let see the bike! Did you finish it?

 

[jellycatsdad]

Wonder if you could put an intermediate pressure air tank after the reg to store a larger quantity of air? Even a portable "air pig" should give you more consistent flow. Treat the scuba cylinder/reg as the 'compressor' - it can catch up in between trigger pulls on the paint gun. Add in another reg+cylinder in parallel to feed the system and you'd get more flow and less chance of freezing anything up.

I know someone who does with with an Ingersoll-Rand scroll compressor in his garage - he didn’t want a big 60 gallon tank. He rigged up a 5 gallon tank from Harbor Freight as the surge tank.

Doesn’t sound like a bad idea, actually.