[giddyap]

I want to buy ONE air compressor that I can use for filling tires, easy nailing, and painting things like a door, an iron porch railing, shutters, etc.

When painting the gun will not be triggered continuously, otherwise I’d use my airless.

But i I simply want to use a siphon/pressure-pot/gravity gun, what is the minimum CFM compressor I should buy???

 

[stick\shift]

Need a big one for painting. Best is to look at the paint gun you want to use and see what its requirements are.

 

[cocomonkeynuts]

https://www.homedepot.com/p/Makita-...-Single-Tank-Air-Compressor-MAC5200/202713486

 

[mark sr]

As noted above spray guns require a lot of CFM. It is possible to spray with a compressor rated for a lesser amount of CFM but you'd need to take breaks while the air compressor catches back up.


Painting and sanding/grinding require the most CFM.

 

[woodco]

I use a 10 gallon 2.5 HP harbor freight compressor, and it does the job. Unless you need 5 straight minutes of spray time, (like spraying a van) it'll work .

 

[mark sr]

I've sprayed quite a few cars [and one van] with my little 1hp 11 gallon Sears compressor. I could almost spray a quart before I had to stop and let it recover. I painted a wrecker for a friend of mine. He had a 2 stage compressor with an 80 gallon tank. I was filling the quart cup for the 3rd time when it cranked up - took me by surprise!

 

[Hansened]

I have an Harbor Freight Trade Pro, 4.7 CFM, 11 gallon tank and a Neiko gun rated at 4.2-7 cfm. Will that be enough for DIY trim and an occasional door?

 

[mark sr]

depends on what coatings you are spraying but if thinned enough to atomize it should do the job.