http://forums.sohc4.net/index.php?topic=57137.0I have pics of the setup in here. One of the compressors I think is oilless, the other one I know has oil in it as it has a fill hole. That being said, I've sprayed a lot of frame parts up to now with no issue. The only two changes I'd made was wet sanding and tacking off with the tack cloth.
The biggest thing is don't locate the water separator right after the compressor, allow a min of 25 of hose, 50 would be better. The reason is, while the air is still hot from being compressed the water won't fall out. As it cools it will vaporize and start to fall out of the air and 25-50 ft is about right to do this. I also have a desicant snake on the line I am using to paint with, and right before the regulator I have a little desiccant filter that also acts as a moisture indicator by changing colors. It's nothing super fantastic, but all in all it was less than $100 and I think works very well for the home user. If I planned on painting more than a couple bikes a year, I'd look into one of those nice sata multi stage ones, but they are usually several bills, and I'm just not that rich.
You're prolly on the right track vis a vis the tack cloth = fisheyes expecially as someone said if you press hard.
Unless my hand is fatter than I think it is, I was actually pressing really light. I read somewhere that you are supposed to let them dry out just a bit first. At this point I'm not going to tack after the primer coat just to be safe. It could be that it's 90F in my garage and so the tacky stuff wipes off easier.
I also bought some paper towels from the paint shop that are supposed to be as close to lintless as you can get. They were damn expensive so I'll be very careful how I use them, but at this point I'm willing to spend a bit of money to avoid fisheyes and lint boogers.
Out of curiousity....how long are you allowing between coats?
Tech sheets say 30 mins for proper flash off between coats. If I am spraying the same color, I'll spray the first coat, wait about 5 or 10 mins and spray another. I haven't had any solvent popping issues so far doing it this way. If it's a different color like candy over metallic, I wait at least the full 30 minutes. From what I understand you just have to wait until the surface is that even dull sheen you see after it off gasses.
I'm not totally done with my write up on Urethane paints, but have a fair amount done already. Feel free to check it out and comment, I certainly don't claim to know everything. I just wanted to contribute what little I had learned to this forum in an effort to help someone else who is just starting out. I'd love to see it turn into a really good thread with lots of good input.
Brandon
