Stop Thinking About Buying a Spray Gun; Just Do It!
By Scott Wunder | Posted: 05/14/2014 8:55PM
All of the woodworkers I know like the woodworking part, but most of them dislike the finishing part. They have a great time using their tools to craft something beautiful and useful and then get paralyzed when it is time to wrap it up. They want it to come out perfect or at least really good, and are sure that they are going to mess it up. Usually, they have tried applying a finish with a brush roller, a cloth or all of the above and more, and the results were never great. It is possible to get a good finish with a brush or any of the above, but it isn’t easy and usually comes up short of perfection.
In the quest for a better finish, many woodworkers ask me about spray guns and spraying in general. They are looking for a better finish, a finish that is easier to apply and a finish that makes their hard work shine. Their reasons for not already owning a spray gun are numerous, but when I am asked if they should purchase a spray gun, my answer is always a loud and excited, “YES!”, followed by, “What in heck are you waiting for?”
On my list of essential woodworking tools, a spray system ranks near the top, only after a table saw, jointer and planer (and, logically I suppose, after sandpaper). I use a spray gun on nearly every project and for a multitude of reasons, with the main reasons being quality of finish, speed, speed and speed. Quality of finish is self explanatory, but the triple-speed thing may need a bit more description.
With a spray gun, the application is fast (speed #1). From spraying stain to applying the last coat of finish, the spray gun can move some material quickly. There is no faster way to get finish from the can to a project, short of just dumping it on. If the gun is working well and the finish is flowing nicely, I can often put down finish as fast as I can move.
The spray gun also allows me to use fast-drying finishes (speed #2) like lacquer or conversion varnishes, which are impossible to apply any other way. With lacquer products, the finish is often hard enough to sand and be re-coated in just 15 to 30 minutes, compared to a full day with oil-based polyurethane. Lacquer dries so fast, that I often spray parts just before heading to an install, throw them in the bed of my truck, and they are ready to install by the time I get to the job site. It can’t get much faster than that.
The best part for me, not being the most fastidious of woodworkers, is the time it takes to prep the spray area when using lacquers (speed #3). Besides covering areas from potential over spray, there is no prep required. I usually spray right next to my table saw or anywhere that I have room in the shop and do nothing about the dust. I just blow off the piece I am about to spray and get on with it. The finish dries so fast that dust doesn’t have time to get in it. I literally do nothing before I spray, even if I am standing in a pile of sawdust (the piece I am spraying is on sawhorses and not in the pile of dust, of course). I would never even think of working like this using something like an oil-based polyurethane, which seems to pull in dust from everywhere. (Quick note: I do use the gun to spray slow-drying finishes too, but the spray area needs to be clean and dust free, and I would prefer to skip that here in the speed, speed, speed section.)
About the Author
Scott WunderFrom felling the trees through installation of the final piece Scott Wunder, owner of WunderWoods in St. Charles, MO, shares his woodworking knowledge with anyone that will talk to him about wood. Whether you want to learn about milling lumber or need help on a project, get your fill of woodworking infotainment at WunderWoods.com. Scott writes about all aspects of woodworking and specializes in finishing (mostly because no one else likes to sand). Scott can be reached at firstname.lastname@example.org. Check out Wunderwoods' website at Wunderwoods.com.