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I need information, help, and procedures on spray finishing inside of casework. How do I avoid loading up the corners, which panel do I start with, etc.?
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Replies
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Its always better to sand all peices and do as much finishing as possible prior to assembly. Sorry!
Eric Hanick
Hanick Woodworks Company
*I've finished literally thousands of bookshelves, bookcase headboards, and hutches on a production basis. The routine we worked out was to work from back to front, inside out, and top down. In other words, finish the back first, then the inside surfaces starting with the undersides of the top, then the inner sides and uprights, and undersides of the fixed shelves, then the inside horizontal surfaces from the top down, then the outside surfaces from the top down. This worked best at keeping overspray off the freshly sprayed surfaces.Keep your spray gun always square to the surface you are spraying. Don't try to spray at an angle into the corners; this is what causes the surfaces next to the inside corners to load up.This is a routine we worked up over years of trial and error, and proved to work best for us. Using an .016 fine finish tip on an airless rig, you could clear coat an average 60" wide hutch in about 2 minutes or a little less with a good even coat and no sags or runs. Trainees used an .012 tip.If you are using conventional spray or HVLP, you'll get a LOT of bounce back. Wear a mask and live with it -- I don't think there's any cure outside of a Kremlin Airmix.
*Heres the method ive used for numerous years ( i hate typing I wish i could just show u but her goes) If i,m spraying the inside of a box first i spray the inside top then take your gun completely out of the box and start from the left or right and with one full motion ( not a half moon) but a l_l movement just imagine your wrist is a machine how would a machine paint the inside of that box? work your way continusly downwards from left to right pushing out that over spray down and out towards the floor of the cabinet and finally spray the bottom ...all of your over spray is going to be heading down so when you get to the bottom and spray the floor your bottom coat will resilitafie theoverspray ...the key is not to stop in those corners ...if you spray one panel then another panel then another panel by the time your done spraying one panel your blowing over spray on the other panel , just to it all in a continues movement... if it helps take practice runs with no paint coming out of the gun first... it's like the old saying measure twice cut once ...plan ahead. last tip just soon as your done....spray just the air out of the tip of your gun and help the last of that overspray out of your box. works for me :)
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