Originally Posted by Ftoast
If you've got a video already that you still feel is relevant (I'm not sure how much these things really change) it'd be great to post a link in the first post to this thread..if there isn't one already and I just missed it.
Is it safe to just leave the gun out for those 2-3coats while they dry or should it be bagged or left with its head in a cup of water or something?
Three breakdowns sounds a lot better and I can certainly imagine it getting easier and faster with a little practice.
It does, although it isn't hard from the beginning.
The older Cleaning videos involved the Wagner CS heads, but the method is essentially the same.
You unscrew the Spray Head from the Paint Cup (in a sink) and rinse off the exterior of the Siphon Draw Tube.
You unscrew the Nozzle Ring and remove the Air Atomizer Cover and then remove and Rinse the inset Needle Cover.
You invert the Head and pull off the Siphon Draw Tube and rinse water through it.
Placing a finger over the larger Air Draw Hole, you direct a strong stream of water down the Draw Tube orifice so that the water exits out and around the open Needle assembly.
Do the latter until the water runs clear (10 seconds)
Usually, cleaning is done whenever you also load up the Paint Cup, and that happens about every 3 coats if you start out with a 3/4 full Cup.
Really large screens, where your painting for 2+ minutes and using 1/2+ a Cup will cause the Gun to heat up. Heat will quickly thicken the paint inside the Needle orifice, reducing flow....so yeah...if your painting a 160"er, a cleaning every 2 coats or even every coat would be best.
Also.........Excessive long drying times due to high humidity with cooler temps can make it necessary to clean between coats...but at 3-4 minutes per...so what?
I do wipe the Needle tip with a cloth or even my fingertip after each coat, to help prevent any paint that is on the outside from gumming up / blocking the paint flow.
And after every job is completely done, I remove the Needle itself, rinse the gun as normal, wipe the Needle clean, and let the Gun dry out un-assembled.
I gotta say, everything above happens very quickly, and with practice / repetition, a 3 minute cleaning is very much a standard effort.
A movie depicting the entire process...including Needle removal... will follow, edited into this Post, as well as posted as a new Thread for easy access.