I am going to be doing the finish work on my timberframe home, 30,000 plus bd.ft. of hardwood like white oak, cherry, hard maple, burled woods, fiddle back maple etc..
I’ll be up 28 feet in the air spraying those timbers so I’ll probabbly want a pressure pot but I’ll also want to be able to do small stuff like windows and trim.
I’ve already got Binks and Devilbuss guns but they are for automotive use and not the new HVLP guns.
Heck as long as I’m at it any recommendations for paint/varnish? I won’t need that $45.00 a pint stuff thank you (please remember that we are speaking of 30,000 plus ft of wood to paint/varnish, and cost will be a factor)
Replies
If you're doing it indoors, you may want to consider a WB finish. I use Enduro, but there are other finishes out there as well.
I use the Wagner HVLP conversion with a 2 1/2 gal pressure pot. Reasonable, works great, easy to clean. Gleem paint will make you any length hose you need when you order it.
I use my Wagner guns from detail to large projects, other tips & needles are available as well for sparying thicker stuff like latex.
To convert to cup, you just remove a set screw, hose, and screw on the cup & insert the check valve.
I've done a lot of houses, use an Asturo ECO pressure feed and a Binks MachI with a 92/92p air cap and fluid tip. Neither uses more than 8 CFM at less than 25 PSI, and they'll both do an excellent job as fast as your skill will let you go. You won't be waiting on the gun.
If you really want to rock n roll and have a decent compressor, put a 94/94P fluid tip and air cap on the Mach1. Uses up to 13 CFM at somewhwere around 40 PSI. The Asturo is the best gun I've ever used, however - but the Mach1 is a close second.
I just use a couple of $100, 2 1/2 gallon pressure pots with about 25 feet of hose on each from pot to gun. You might want to go a little longer, or hang the pot from your ladder or scaffold. One for clears, one for colors. You can just put a gallon can in the pressure pot and save a lot of cleanup.
As for finishes, a precat lacquer is plenty adequate for trim in most of the house. Might want to use a post-cat lacquer or a conversion varnish in the kitchen and bathrooms. If you are using a light finish, an acrylic lacquer or a non-yellowing conversion varnish like ML Campbells Krystal would be good. They are all easy to spray, but mixing the catalyst can be a pain.
The newest generation of water based finishes has good wear characteristics and would be fine for general trim, but for the life of me, I can't see any real advantages. Sure, it doesn't smell as strong, but you still should have positive ventilation and respiratory protectiopn, and the overspray is flammable.
Lots of possibilities here, but those are some proven combinations.
Michael R
Have you considered an Airless setup with a good gun and a fine finsh tip as in 10 or 11 thousanths??
Frenchy,
Give Jeff Jewett a call. Not only does he write very informative books, he sells all kinds of guns and finishes. I called looking for advice, thinking I'd be talking to an employee, and ended up talking to Jeff for 15 minutes and got a ton of advice.
http://www.homesteadfinishing.com/
Wayne
Most airless guns aren't capable of spraying the volumes we're talking about here. Those that are sure seem to be putting out more volume than I could control..
I've got as much as four sides of a timber to cover and some of those timbers are over 20 feet long..
I have been using diaphram type airless pums made by Wagner(not the little buzz boxes) for the past 20 years on interior cabinetry . That is inside and outside of cabinets, panels and other things. That is why I suggested a very small diameter tip. They don't spray that much material, and the overspray is minimal. The finish is also very smooth. Also, most of the guys that I have worked with over the years, do the same. There are also extension rods to mount your gun on and spray ceilings and other high places. My ceilings in my house are 14-16' high, and I did it from standing on the floor. A good gun and a good double orifce tip (size: 410) will put down a nice 8-10" fan with little, if no overspray.
I do have a conversion HVLP gun and pressure pot, but I only use it on smaller jobs. In the long run, I do prefer an HVLP, but when it comes to having to put on alot of material. I prefer the airless, especially on large surfaces. I spray all satin with an HVLP, not an airless, even on large jobs
Currently, I have 30 Wagner(spraytech) airless diaphram pumps, 1) Spraytech piston airless pumps , mainly for painting, and a Binks 2 gallon pressure pot with 2 guages along with a Binks Mach2? gun on 15' hose for reduced fluid waste and easier cleanup. @ of the wagners are about worn out after 15-20 years, but they still spray lacquer.
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