Hello all, I’m a professional painter (contractor) in the UK.. I’ve just dipped my toe in spraying AAA in occupied domestic property’s.. I already spray straight airless with a 395, or GX21, plus the Ultra Handheld.. then I also spray HVLP (Air Spray) with an Anest Iwata HTE gun / pressure cup and Gentilin compressor.. ultimately my reason for a HVLP / compressor setup was to use the compressor to go AAA ..I know the 395 Finish Pro is available with onboard compressor is available, but I hear theories about sufficient delivery of air (CFM).. anyone use the 395 Finish Pro? ..my AAA setup is using the Durr EcoGun 2100, and Durr flat tips / nozzles.. an awesome gun, with plenty of control over the air cap to squash the fan and improve the transfer efficiency.. I’ve got lots to learn.. hoping to learn from you good people and share what knowledge I have from spraying in the UK.. all the very best.. Pete ..here’s my YouTube video, hope you enjoy..
Hello Pete,
I am North American based, though originally from England. While I never woke up one morning and said, 'gee, I want to be a house painter', it did sort of, choose me. That was about 35 years ago. Over the years I have done quite a bit of spraying in all kinds of situations, starting out using airless, and adding turbine HVLP when it first arrived on the scene.
The only time I stumbled across AAA in the earlier days, was an ad for a machine, then made by Wagner US (now Titan) called the aircoat system. I was already in possession of half that machine - a Wagner diaphragm pump, which I used for a few years. At the time I was intrigued about what the combo could do, but then drifted off into other areas of the painting trades for a while.
Eventually, the AAA thing came full circle. I have been doing a lot of tinkering over the past five years with AAA, after I bought a 395 Finish Pro, and was a bit underwhelmed with what it could do. Even my local Graco rep told me that with advances in Fine Finish tips, AAA might not really end up being much of an advantage. Having recently started using the Tri Tech fine finish tips, which I think are excellent.
One guy whose approach you might want to look at is in Darbyshire, and goes by the name Decor 1st.com Painter and Decorator. He is a big fan of the Wagner diaphragm pumps, which he pairs with a variety of guns, including the Durr. He was very complimentary about the latter.
The only significant difference to this individual's approach, is that he uses a Wagner heated hose in addition to all the other kit. Heating the paint causes the same effect as thinning, without reducing the material, so you can spray at even lower fluid pressures.
These hoses are not available in the US, although, for around $2K, one can buy an inline heater, which is said to do the same thing.
Returning for a moment to the 395 Finish Pro, I did come to some conclusions. Firstly, if you are using the G40 gun with the RAC-X reversible tip set-up, I think the air cap design doesn't really allow good airflow. If you compare the cap, to the one that comes with the flat tip conversion set, the openings for the air are of very different sizes.
Whether or not the compressor has enough air to keep up with either cap I do not know.
Once I started wrestling with this, I did a cabinet job using my GX-19 (similar to your small unit) coupled with a larger compressor and the G40 gun with the reversible tip set-up. I was spraying an Italian single component finish which does spray like a wet dream.
While I did get good results on the finish, I did seem to have to crank up the fluid pressure on the pump to get a 'full' pattern. My paint spray go-to vendor said he thought it was due to the small piston in the pump and pulsation in the line. For that experiment, I was using an 1/8 inch ID hose, which could also have been part of the problem.
Shortly after, I bought a Titan ED 655 pump and tried that with the aforementioned G40 set-up, and this worked somewhat better.
I think the real test would be to switch over to the flat tip set-up on the G40 and put that through its paces, using the small titan pump.
It is possible, that the Durr (and Wagner) guns are just better configured, or have better nozzle tip combos.
The fact that Graco is now offering the PeformAA gun as an upgrade, and with a fairly large choice of air caps for specific situations, does suggest that they felt the need for improvement.
Whether anything else about the gun (air passages for instance) is different, I cannot tell at a glance, although the new air caps can be used on the older guns, and I am tempted to give those a try.
Finally, a lot of the AAA purists in this country say that for the ultimate in low pressure spraying, you need to go with an air motor system, like Kremlin for instance, and argue that the tips on the gold gun give additional advantages.
In the end, there are too many variables (and too much money) to be spent tracking it all down, but thanks for your story.
I only wish the Durr gun were readily available in the US.