I see…thanks for posting that. I never understood why they choose a random psi number to rate the cfm volume, and I don’t understand how those numbers scale. So aside from my issue with stabilizing the pressure, I still may not be getting enough volume of air for the cap to work efficiently? I am getting results that I’m happy with, I’m striving for better.

Here’s a few small things I sprayed a few days ago. I’ll be spraying the entire inside of the boat here in a couple weeks. Also I realize this is an auto body forum, but I’ve been reading these forums for years and there’s a lot of knowledge here. And the fundamentals are universal anyway.

TopCoat wrote:. The air cap I have is asking for 22cfm at 80psi. Does anyone know how this translates to say 45 or 50psi?

22CFM? @80 psi ? WOW!
WOW! thats a lot My compressor is capable of that but dang I would be looking at buying a different gun Thats a lot of air. either that or be prepared to spend over 5 grand on a new compressor.

As Jim said no theirs no way to make up air flow by dropping pressure they are totally different things.

Ya it’s a conventional style gun, or what devilbiss calls ‘industrial’. It’s the 765 air cap. You can see it on this chart.

22 cfm for the air cap seems like a lot to me? i'm like Darrel i've only used larger pressure pots 2gal and 5 gal. the ones we used had a regulated pot supply. you could literally stop the flow by backing the pot regulator off. it would take a few seconds for it to relieve the pressure. i'm wondering if your not getting to much pot pressure? Your application looks really good though.
Jay D.

Thanks Jay, ya seems high to me too…results aren’t perfect, but they’re definitely not bad. Pot pressure seems ok. I have a gauge on my pot and the airline going to my gun. Pot pressure I run 5-8psi, and the gun I shoots for around 45