They’re thicker, but still dry rapidly, so that you can apply multiple coats in a relatively short period of time. If you’re painting something like fir plywood, use high-build primers, which are often labeled: filler and sandable primers. Rough, grainy textures in wood tend to show through most spray paints, leaving you with a textured surface that still looks not-quite finished. ( Shellac is a natural resin that’s secreted by female lac bugs in Southeast Asia.) It does an excellent job of sealing tree knots and also locking in odors and stains. To prevent sticky, resinous tree knots from bleeding through a topcoat of paint or varnish, spray on a coating of clear shellac or a white primer that contains shellac. Just be sure to clean off any compound residue before painting. It’s great for buffing out scratches, but can also be used to prep the surface prior to spray painting. Like epoxy, the resin and solvents stay separate until you’re ready to paint.Īnother great crossover from the auto-body industry is rubbing compound that cleans and abrades the surface at the same time. When you need a high-gloss coating that resists rust and chemicals, take a tip from the auto-body industry and step up to a 2K (two-component) spray paint. Stay a consistent distance from the piece and hold the can parallel to the surface, don’t sweep your arm back in forth in an arc. Once you see the spray pattern, you can adjust your technique and determine how far away from the workpiece you must hold the can.Īlso, when spray-painting large or long items, start spraying an inch or so off the near edge of the piece, and continue spraying all the way across and off the far edge. Now, and this is important, test the can’s spray pattern by spraying some paint onto a large piece of cardboard or scrap plywood. That’ll provide plenty of protection from overspray as you apply the paint.īefore spray-painting the workpiece, shake the can until you hear the mixing ball inside bouncing around. Instead, spread out a large plastic or, better yet, canvas drop cloth. To capture overspray when spray painting larger projects, don't waste time taping together sheets of newspaper they’ll only rip and fall apart as you paint. Stand the cardboard up-preferably outside-and then spray on the paint. To spray paint small fasteners, such as screws, nails, bolts, cup hooks and screw eyes, try this trick: Stick them into a sheet of cardboard. Just be sure to keep the can at a consistent distance from the piece to avoid drips. Then slowly rotate the turntable as you spray on the paint. Remember, the key to a smooth finished coat of spray paint is starting with a sanded-smooth, primed surface.Ī simple, yet effective way to spray paint smaller items is to put them on a lazy Susan turntable, which you can buy for as little as $6. ![]() And after sanding, be sure to use a tack cloth to remove any sanding dust before applying the next coat of primer or paint. If you don’t want to buy a sanding block, make one from a short length of 1x3 or 1x4. You can use an orbital finishing sander, but hand sanding with a sanding block wrapped in sandpaper is just as effective. Sanding the primer with very fine sandpaper- 180-or 220-grit-will knock down the raised grain and leave behind a smooth surface for the next primer coat, and then finally the paint topcoat. ![]() ![]() You can brush on the primer, but spray primer is much quicker.Īpplying a primer and then sanding is especially important when spray-painting wood because the first coat of primer will raise the wood’s grain, creating a fuzzy, rough-textured surface. So, before spraying on the final coat of paint, you must sand the surface smooth and then apply at least two primer coats. Spray paint typically has a sheen that, when dry, reflects light and emphasizes any surface imperfections, including scratches, dents and nicks. Play icon The triangle icon that indicates to play
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