I need to buy a new sprayer to handle waterborne pigmented topcoats. Some have viscosities as low as 45 seconds through a #4 Ford cup, and I could use my standard gravity feed HVLP gun for them if I wasn't worried about cross contamination with my clear coats. Some of the others, like SW's ProClassic WB Acrylic have viscosities as high as about 540 seconds (based on conversion from 20 Poise). That's far out of the range of my current equipment, although I have sprayed it by adding nearly 20% water to it. But that's well less than ideal, hence my need for a new gun.
I can't justify an AAA setup; I just don't spray that much stuff nor do I want to be wasting finish in the hoses, cleaning them, etc. Pure airless doesn't seem like the right option for fine finishing either. I'm thinking an air assisted HVLP gun should work well with my large compressor, which is capable of outputting about 12 CFM at 40 psi. Looking at my options, and thinking more about the potential contamination problems with paint, the air assisted 3M PPS system looks interesting. Not much to clean. It has the added benefit of being able to spray with the gun even upside down. So that looks interesting, but I don't know anyone using it so I need input from those here that have. What do you like about it, hate about it, etc.?
That leads to a full blown 3M Accuspray system where you use interchangeable and disposable tips. Even less to clean. Anyone here using one of those? Same questions. What do you like, dislike, recommendations, etc.? Which model do you have and why did you choose it?
Look forward to your help. I need to make a decision in the next week or so as I have a couple of "paint" jobs coming up. Thanks in advance.
John