|Forum topic by Bill1974||posted 08-12-2014 04:16 PM||1083 views||0 times favorited||4 replies|
08-12-2014 04:16 PM
I have only made a few pieces of furniture and I have, either used a rattle can or I sprayed on the finish. I have also sprayed on dye and also wiped on stain.
On one item A small tv stand I sprayed on a dye, it was maple and I wanted it dark. I know it’s not the smartest way to do go. I am learning, slowly that is. I sprayed on a general finished dry stain and for a small tv stand ended up going through 3/4’s of a quart of it. I know a good amount of it did not make it the tv stand as there was dried dye dust on everything else in the garage. But brushing or rubbing it on were not getting the results I was looking for. I put a finish from a rattle can on it and it was ok, coverage on the top was not smooth and consistent, which I guess is the limit of the rattle can and trying to keep a wet edge.
On another piece (5 foot long entry bench), I used a oil based stain on cherry and it used less than a quarter of the quart by brushing it on and wiping the excess off after a few minutes. This went exactly as I had hoped and turned out great. On this piece I sprayed on General Finishes water based satin polyurethane. The end result was pleasing and I think it looks nice. I was worried as I applied the first coat as it looked like it was beading up and not going to level out and was going to have a really bad orange peal look, but it turned out fine. I have two coats on and i think a third would be better. I ended up going through a quart just to get get two coats on.
I really like the consistent smooth look from spraying but it seems like a lot of the material does not make it on the piece being finished. I would expect some material waste with spraying, but i am thinking that there is something with my technique, equipment, setup that is causing me to go through more material than I think I should be using. If i had to guess and it’s a guess, I would expect that I would have gone through a quart to half a quart to finish the piece if i had brushed on the finish.
As for what equipment i used, I used a Harbor Freight 20 Fl. Oz. HVLP Gravity Feed Spray Gun with a 1.5 tip. I had the pressure at the gun around 30 psi. I played with all the adjustments on the gun to get an even pattern and a consistent looking application of the finish. I tried higher pressure but there seemed like more over spray and bounce back and lower pressure didn’t seem to spray as finely as i though it should. Technique, I was mainly spraying a horizontal surface, and was spray about 5 to 6 inches away.
So is it normal to go through this much stain and finish material when spraying or is something I can change to not have as much waste?
The bench is very similar to this one, http://www.homedepot.com/p/PureBond-Entry-Bench-in-Natural-Cherry-3431/205065088