Any advice for someone new to working with pressure pots? Never used them before and I just got my hands on two used ones - one for dyes and stains, the other for clears. I'm having trouble getting good output from the 2.5ga pot for the clears; I'm struggling with the settings trying to get rid of little pinholes as I spray. What do you guys do for your setup and adjustment procedure?
From contributor A:
You need to reduce your product or turn up the pot pressure until the stream (fluid only, no air) looks like a "beer piss." The pressure should be between 10-20 psi for typical products and 20-30psi for things like primer/undercoater or house paint.
Once you get about an 8 stream with fluid only, slowly turn up the air until you get good atomization. More air than necessary will produce excessive overspray; too little and it will orange peel. Note your settings at the point you are happy with the results.
I've never seen anyone go through the motions of setup/cleanup/maintenance with a setup like this so I'm trying to figure it out as I go. Thanks.
The optimum material flow rate is going to vary depending on the material and your equipment. The only answer is to work the variables until you find the flow rate that works best. Once you find it, measure it, and then you have a precise benchmark for that material.
The problem of relying on your gauge to set your fluid pressure is the regulators most finishers are using on pressure pots are not sensitive enough to regulate in such small increments.