How to Paint with Airless Sprayers
As one worker for the most part what we hear about are HVLP type sprayers that we would use for spraying top coats on wood working projects. But airless sprayers like this also have a place in your shop if you're doing what are called “paint grade projects”.
Paint grade projects would be maybe something that you built out of MDF or pop work. And instead of staining and top coating it, you’re planning all along is to paint it. It happens all the time. The airless sprayers like these are really, really good at getting out on a layer or paint. There not so good at doing top coats, so here’s what we've got here.
With this one, the way it works is that we’re not providing air to the system as would come from a compressor or turban. We’re providing electricity to it. There's a pump inside here when we run this, when I squeeze the trigger. The pump is going to pull liquid up out from the pot down here, push it out the nozzle. They worked really, really well for thick bodied stuff like paint, so that’s kind of a line in the sand. If you're spraying polyurethane, lacquer, shellac you really are a better. You're really are better off with an HVLP gun that you would run on an air compressor or a turban.
If you want to spray paint because it’s so thick, you're better off with an airless like this. So here’s what we've got going. This particular one is a two speed gun, so I can change the speeds setting here which is affected by the viscosity, the thickness of the liquid I'm spraying. Right now, I just got water in here, so it will come out just fine on that low speed setting. I can also turn this knob and I can control the amount of fluid that comes out of the front. I can turn this and I can control whether I have vertical fan or horizontal fan, so it gives me better control.
Let me show you how I run a little bit water through this thing and you can see and hear what its like to use an airless sprayer. It’s really throwing a big volume of liquid out. Now, I think you can imagine that if this were lacquer or polyurethane. I was spraying into my wood working projects. It just wouldn’t workout very well when this paint that’s coming out. This is a beautiful thing to have. It does a wonderful job of putting paint on your projects. Airless is the way to go if paint is what you need to spray.
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