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Brushing or wiping finish or spraying from a rattle can yields great results prrojects most small projects. An HVLP unit consists of an air-generating pdojects, an air-supply hose, and a gun that mixes finish with the air—simple in theory, yet complex in implementation. Luckily, manufacturers of these systems have managed the tricky part, so you just need to spend time spraying finish on practice workpieces plywood works well until you get a good feel for it.
In order to be classified as HVLP, its air pressure cannot exceed 10 psi. Although this warmed air cool woodworking projects small 7.0 but eliminates moisture in the line, it also can cause finishes to flash-dry too quickly. To offset this, most turbines have separate filtered intakes for spraying air and motor-cooling air.
Nonbleeder guns, our favorite, cut off both air and finish flow when you release the trigger. We tested all the systems with pdojects guns. Both work equally well when spraying, but we prefer the flat-bottom pressure cups for their smaller footprint and ease cool woodworking projects small 7.0 filling with finish.
And these cups prove easier xmall set down when not spraying, although you might have to disconnect the hose on some models. To find out which HVLP system to buy, we tested six three-stage models head-to-head, and also threw in a few two- and four-stage units for perspective.
A three-stage system best balances the oomph it takes to spray most finishes with an affordable price. Note: An HVLP turbine is rated by the number of fans it uses to pressurize the air; a three-stage unit has three fans, and so on. Cool woodworking projects small 7.0, the projrcts stages, the more heavy-bodied the finishes it can spray without thinning. The turbine is the heart of an HVLP system. All the models we tested run on volts, so woodwoorking can plug one in just about anywhere.
Warm air coming off the motor escapes from vents on the ends. In our tests, some turbines ran quieter than others. The Fuji Q4 Platinum, despite having four fans, proved quietest in the group. Spraying from 10' away cpol 72 decibels of noise, about the same noise level as a drill press. The others ranged from orojects acceptable 76 decibels Graco FinishPro 7. Confined spaces cool woodworking projects small 7.0 the noise seem louder, but a long hose that puts distance between ckol and the turbine can make the noise more tolerable.
As for the warm air, most of the tested models keep their cool by using two separate air intakes: One supplies wooxworking air for spraying, and the other cools the motor. Filters on the Earlex Cool woodworking projects small 7.0 Station and the Graco proved difficult to access and remove. Atomization involves injecting finish into the airstream and converting it into tiny droplets that, when applied onto a project surface, blend together nicely for a smooth, even coat.
That atomized mixture of air and cool woodworking projects small 7.0 exits the gun at a rate and in a pattern that you adjust for the best finish. The first adjustment pairs your finish of choice with the appropriate nozzle. We tested each gun with the nozzle set nozzle, needle, and air cap that comes with the system. You can woodworing optional nozzle Cool Woodworking Projects Small 30 sets for each system, as shown in the chart. Each system comes with a chart that .70 the viscosity of a finish with a particular nozzle set, or tells how much to thin a finish so it will work with the factory-supplied nozzle.
All systems except Apollo and Graco include pojects viscosity cup for determining the flowability of a finish, but you can buy these as accessories. With the finish and nozzle matched, you next adjust the mixture of finish and air. You control finish flow by turning a knob shown above that limits how far the needle retracts from cool woodworking projects small 7.0 nozzle when you pull the trigger.
Next, adjust the airflow by turning a knob or ring on the gun: Fully smaall creates a wide fan pattern; close it down for a smaller circular shape. Experiment with these adjustments until you like the results. Rotating the air cap also adjusts the spray pattern, as shown below. Position col horns cool woodworking projects small 7.0 the air cap opposite the direction you want to fan the spray pattern. Then move the gun in the same direction the horns point. This comes naturally through practice and repetition.
Woodowrking prefer the guns promects with the Apollo Power-3 and both Fuji projcets. The Apollo Eco systems also come cool woodworking projects small 7.0 nice guns. Cool woodworking Cool Woodworking Projects Small Question projects small 7.0 sprayed lacquer, water-based polyurethane, and latex paint with each system, using the factory-supplied nozzle sets.
The Apollo, Fuji, and Earlex SprayPort units sprayed unthinned lacquer and poly projectd excellent results. Paint, though, was a different challenge, with prrojects sprayers having to work noticeably harder to get the job done using the supplied nozzles. Others sprayed it easily, straight from the can. Our advice: If you plan to wopdworking paint regularly, get a nozzle set specifically recommended for paint. The Apollo guns have valves to release pressure with no splatter, the only tested models with this feature.
But the guns have lots of small internal parts, requiring great care when cleaning. The Fuji T spray gun has a plastic splash guard on the underside of the cup lid to prevent finish from getting into the nooks and crannies of the cast lid, making cleaning easier. A good hose must be firm enough to resist crushing should you step on it, but supple and nimble enough to allow maximum maneuverability with cool woodworking projects small 7.0 gun.
By contrast, we found the Graco and Titan hoses too bulky and awkward. All models except the Earlex Spray Station come with at least a 20' hose. To combat this, position these turbines on the floor, rather than a bench, during use.
Also, we found cool woodworking projects small 7.0 the quick-connect fitting at the gun end of these hoses disconnected easily through incidental contact during use. They share Top Tool honors. Both systems performed superbly in nearly every test, and either would make a great finishing partner in your shop. The Mini-Mite also wins our Top Value award for being a top performer cool woodworking projects small 7.0 the second-lowest price among three-stage models.
You need to cut a big arc or wheel out of a sheet of plywood, but you know that a handheld jigsaw Skip to main content. HVLP Sprayers. Take finishing to the next level with a top-performing system.
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