HF HVLP Compressor CFM Requirements

[Rich P]

I have a 20 year old lightly used Craftsman 3HP 20 gal compressor. The specs say (SCFM@PSI) 8.8@40, 7.7@90 and 7.3@100. Would this be close enough to drive either of these two HF units in non-production usage?

Model 66222

Model 94572

The specs on the 66222 say 12CFM@45 and on the 94572 the larger unit is 9@35 and the smaller one is 5@30. These are from the manual, not the web description.

My immediate need is spraying Rustoleum on the cabinet and parts on a Powermatic 66 refurbish project. These two units are on sale ($40 and $50) and there is the 20% coupon good for this weekend, so it might be worth a try if there is a chance it will run.

I'm leaning towards the two unit product since it has three different needle sizes between the two guns. I do have conventional guns which I've used ok with latex, so these would not necessarily be called on for that application.

[Mr__Bill]

My setup is much the same, perhaps even the identical compressor, and I use the HF 66222 spray gun. I have had no problem with it, however I have yet to try and paint a house or car with the setup. There may not be enough air for extended usage but for what it sounds like your going to do and how I use it, it's a nice match.


Bill, Braunschweiger and onion sandwitch for lunch, good thing I'm not working with anyone today.

[Rich P]

Thanks Bill...I'm going to give it a shot. Haven't been to HF in a few weeks so I'm starting to twitch a bit!

[Mr__Bill]

Thanks Bill...I'm going to give it a shot. Haven't been to HF in a few weeks so I'm starting to twitch a bit!

Don't forget your 20 percent off coupon!

Bill

[Rich P]

You betcha on the coupon! In addition, I took a print of the web price for a pressure regulator. Store price was $9.99 and web was $4.99...got the lower price as usual. Went with the 2-gun kit which is normally $59.99, on sale for $49.99, out the door for $39.99 (not sure why 25% off of sale but I didn't ask.) Together with the $5 on the regulator I feel pretty good. I practically always take a print of web prices since one time when I didn't and paid 40% more in the store.

[Rich P]

Wanted to report I finally got around to spraying Rustoleum Pro Primer on the cabinet of my "new" PM 66 and the Craftsman kept up just fine. I did use a 3/8 hose and cranked the compressor all the way up on pressure. I picked up the small HF regulator to attach to the gun and stepped down the pressure there to 30 psi. I did find a viscosity cup (DIN 4 I think) and after measuring the primer found it to be way to thick. Thinned it down by about 10% and used the 1.8 MM tip in the larger gun. It could have probably been thinned a bit more but it was fine for primer. Next step is the Rustoleum hammered.