|Originally posted by SIMJEDI
Hey Mike I just bought one of those systems, could you give me a heads up on what to expect and some tips like certian techniques and how much you have to thin the paint if at all?
Congrats on the buy!
OK - there have to be about a million people in this forum who could give better advice than I can, but here are a few things I've noticed. (And noticed, may I add, by consistently doing it wrong!)
- You don't need too thin much, if at all. I can spray silver metallic, WOP and anything else in my current arsenal without any thinning at all.
- However, the thicker paints take longer to start spraying. A couple times I've been standing there, aiming at something and squeezing the trigger and nothing has been happening. Just when I turn the spray gun around to see what's wrong ... thar she blows ... (The only thing more difficult to get off my hands than dried silver metallic is the blue food coloring I used to make Easter eggs with my kids yesterday ... )
- If you do thin, even minimally, be ready for the stuff to come out A LOT faster. It makes a difference! Actually, I probably *would* be getting better results by thinning, and I think I will when I actually start spraying on BO cloth. By I made my biggest messes so far by spraying thinned paint too close and to hard and too slow.
- Further: don't go (1) too close (ie., with the nozzle too close to your work), (2) too hard (ie., full blast - the thing has a power regulator and I seem to get better results at about half power) or (3) too slow (ie. keep the thing moving at an even distance to your work; don't dwadle in hopes of getting a thicker coat). Also, (4) don't double coat while your paint is still wet. It looks great for about 1 minute. And then it starts to sag. And then it starts to run.
- If you're working on flexible material, try to keep it flat. BEst of all, spray onto a solid surface. I've enlosed a couple picture I took of a sheet of mirror foil I sprayed with WOP. It was a lovely piece:http://gallery.avsforum.com/data/501...93DSC00009.jpg
For some reason I can't remember anymore, I didn't use double sided tape to hold downthe bottom when I sprayed it - and I ended up with this:http://gallery.avsforum.com/data/501...93DSC00132.jpg
Note the uneven spray pattern! Dimpled on top, very thick lower down, smooth and undersprayed at the bottom. And too much WOP all over. I also sprayed a normal mirror square, which came out looking much better:http://gallery.avsforum.com/data/501...93DSC00133.jpg
- Be prepared: I've spent about three times as long cleaning my rig as spraying with it. It cleans easily enough; it just takes some time. What works for me is to pour my paint back into my paint container, then clean out as much as possible with a rubber spatula, then rinse the container and the sprayer with warm water. Then I fill the container with hot water and spray about half a container of hot water into the metal sink (until the water sprays completely clear). Important: Make sure you spray from an empty container to get all the water out of the lines, otherwise you risk spraying water on your work next time round. Finally, I unscrew everything, rinse again and schlep back to the apinting area.
- What I don't know: I expect that it would be OK to leave the paint in the gun between successive coats and just clean the knozzle a bit. I think. I haven't had the courage to try yet. The thought of ending up with a solid clot of paint in my machine has scared me off so far ...
- Did I mention that the thing is LOUD? The neighbors won't appreciate your using this thing at 3am.
- Oh yeah: practice, practice, practice. Did I mention that you should practice, too? Figuring out a sprayer is a great time to do a little R&D on your world-beating paint mix and squirt at anything that your wife isn't expecting to see in the living room any time soon.