Paint Gun compatability

Hey,

I was looking into buying a DeVilbiss Finishline 3 # FLG-643 HVLP paint gun (13 CFM @ 23 psi inlet) and I was wondering is it compatible with my Husky 5Hp peak 13 gallon compressor that pushes out 6.5 SCFM @40PSI and 5.1 SCFM@90PSI 125 MAX PSI. I also have a Wilkerson inline water filter/pressure regulator.

Thanks in advance!

Ricky

Another site is saying the air consumption is 9 cfm at 30 psi inlet pressure

That is the same gun I personally own and I have rum it on smaller compressors. The trick is to paint very slow as to let the compressor fill. Also you will be running the gun at 30 p.s.i. inlet but will only be running a cap pressure of 5-15 p.s.i. depending on paint.

"Also you will be running the gun at 30 p.s.i. inlet but will only be running a cap pressure of 5-15 p.s.i. depending on paint."

Could you explain the difference between inlet and cap pressure. Secondly I have already purchased the gun, now I am looking to buy a Chicago Pneumatic 3" DA sander I was wondering would that be compatible?

Thanks,

Ricky

inlet is the pressure going into the gun, this is regulated at the compressor before it enters the line. At the gun you will need to install another regulator and keep this set at 15-20 psi. Then at the back of the gun there is another knob that you can adjust the pressure at for fine controll. As for the DA sander that is a no. The smallest you could get away with is a 60 gallon compressor. My best advice would be to return the DA and get an electric random orbital sander that takes round not square pads.

I do autobody, auto paint, and custom car stereo installations. What you need to do for your spraygun is crank up the regulator on your air compressor, so you get maximum psi built up inside the tank. Then, if you have a Harbor Freight in your town go there and get a "Filter/Accumulator/Dryer" for your airhose. They work great and are only like 20-30 bucks. Otherwise, go somewhere in your town that would have that part. You will need it to filter out dirt, oil, and water that will build up in the hose and ultimately clog your gun and ruin your project. Once you have this part, mount it to the wall. Run a short length of hose from the air tank to the dryer unit. Buy a NEW airhose to go from the dryer to your spraygun, preferably one on a retracting reel. You'll want to get a pressure gauge for your spraygun, and that will allow you to adjust the pressure of your gun to the ideal pressure of 23 psi, or whatever they recommend for your spraygun. I'll post some pics as soon as I can.

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Here are some link to products I recommend. They are off the Harbor Freight website, I've personally used thes products and know that they work. Sometimes stuff you buy from this place is complete junk, and sometimes it's great. I wouldn't recommend it if it didn't work. Remember, if you don't have a harbor freight, you can go elsewhere and find an air filter/regulator/dryer. Here you go:

https://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=42035

https://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=47035

https://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=90590

buy these items, and some quick disconnect couplers like:
https://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=94024

You'll be ready to rock with that new spraygun. Nice choice by the way. Any more questions let me know.


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Thanks!! I am glad that there is a forum like this where people can colabrate on information.

Hey abovestock,

I have already purchased a 5" disc electric random orbital sander. The problem is that the base of the sander is not made from foam but made of hard plastic that is not flexible. Would this not allow me to sand properly?

Ricky

That should be fine that is what I use all the time. All you need to do is hold it at different angles and on edege to get the shape you want.

sach_deva....

A better way to deal with your sander would be to get a foam interface pad. You can also change out that hard plastic base for a new one that is compatible with a sandpaper called Stick-It. It's very similiar to velcro and you can peel it off and re-stick it as many times as you want. Just a heads up though, don't get the adhesive stick-it cause that's pretty much a one time use only. You might even want to switch out your 5" pad for a 6" one because those are more common and if it's more common, sandpaper might even be cheaper. Here is a site with some decent information on this matter. Read what it says about the sandpaper and on the bottom about the firmness of the pads.

https://www.motorguard.com/sur_4.html



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im using my 6" DA sander on a 30 gallon tank at roughly 90 PSI, and though the compressor spends quite a bit of time on, it works as much as i need it to. i can imagine a 15 gallon wouldnt work though

So would you recommend a soft or a medium firmness pad?

If your're doing something with lots of contour, definately go with the soft pad. That way you won't gouge what you're working on. If you are doing a flat surface, the medium pad would be good.


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