Sand to Finish Photo by Wendell T. Webber. Before staining or painting, sanding is very important; otherwise, they would not stick to the wood properly. Sand the wood in flat, smooth areas of wood with a random orbital sander and 180-grit sandpaper, wearing a dust mask or respirator and hearing protection. Sanding Furniture to Paint What to Sand With . The most efficient use of sandpaper for hand-backed sanding is to tear the 9″ x 11″ sheet of sandpaper into thirds crossways, then fold each of these pieces into thirds lengthways. First, after removing the dust, look at the wood in a low-angle reflected light – for example, from a window or a light fixture on a stand. For surfaces that have large, flat areas, incorporating a high-density foam roller will help you get the job done more quickly. Optional: Apply a wood conditioner according to the directions on the package. Sandpaper. Save up to 68% on 7 issues of woodworking projects and tricks. This method reduces waste to zero and also reduces the tendency of the folds to slip as you’re sanding. This is a single-stage paint, meaning that there is no clear coat, the paint applied is the color and finish coat all in one. Be careful not to gouge the surface though: You're just looking to rough it up a little so the primer has something to adhere to; you're not trying to strip the surface. What is a week or two when a good paint job will last decades? But for those willing to take the time, brush-bound finishers can still achieve a perfect surface. Photo 4: Use a sanding sponge to sand the filler. Sand. If you are sanding furniture and other pieces that have uneven surfaces, switch to hand-sanding so that the sandpaper can better conform to the shape of the piece. For example, a board that has been run through a planer with dull knives will require a coarser grit to be efficient than typical veneered plywood or MDF that has been pre-sanded in the factory. Professional results are easy to achieve if you follow a few professional tips: Lee has over two decades of hands-on experience remodeling, fixing, and improving homes, and has been providing home improvement advice for over 12 years. First paint the wood. Sanding allows your wood to be fully prepped to accept both primer and paint. Put on eye protection and rubber gloves. Using 220-grit sandpaper, sand gently by hand, or attach the paper to the orbital sander and run it extremely lightly across the surface. If anything is more important, it is to clean the surface thoroughly after sanding as the process accumulates a lot of dust. Whether you're a beginner or you're a regular do-it-yourselfer, our checklist will take your paint job from "good" to "amazing." So most of the time, you can seal wood using the same finish you'll use for additional coats. Start with a rough sandpaper grit, such as 80 grit, and begin to sand the wood. The biggest sanding challenge is to know when you have removed all the flaws in the wood and then when you have removed all the scratches from each previous grit so you can move on to the next. Wood Trim and Siding. (wet sanding and applying clear sealer) Sanding also removes burrs and rough spots in painted wood trim, such as baseboard moldings, and window and door casings. We may receive a commission from sales referred by our links; however, we have carefully selected these products for their usefulness and quality. Painting wood appears to be such an elemental, foolproof project that many people rush the job along or attempt shortcuts that produce poor results. Sanding and polishing clear coat overspray. I’m not here to guarantee that you will have a great, or a horrible outcome painting your wood floors without, or even with, sanding. Wet sanding will remove orange peal, improving the clarity and imagine in the paint. Sand any bare wood to 120-grit and no finer. Lay a canvas drop cloth or contractor's paper over the plastic sheeting. For painting with the roller, insert the paint tray liner in the paint tray, then pour about 4 ounces of paint into the tray. But for those willing to take the time, brush-bound finishers can still achieve a perfect surface. Of course, doing this is seldom possible on turnings and decorative veneer patterns such as sunbursts and marquetry. This is also a good time to scrape any old, flaking paint off and to sand down old paint lines. I really find them to be very helpful for my new projects. Continue until you get the distressed look you want. Splatters!) If the piece you are painting has any rough spots, like let’s say you’re painting new wood, then you need to sand those spots smooth before painting as well. A good paint job is all in the prep before you even touch a paint brush. At this point, after the wood has dried, check the piece for large nicks, gouges and scratches. After the paint dries a few minutes and before the paint dries completely, take a scraper or credit card, and scrape off some paints at random spots. This is a step that cannot be avoided, even if you're repainting a piece of wood. Seven steps to a heavenly finish. Sanding is very personal. Wipe down the whole surface with a tack cloth to remove any dust from sanding. Always use a dust mask when sanding. Oil and oil/varnish-blend finishes have no measurable build, so any roughness in the wood caused by coarse sanding telegraphs through. Put on eye protection and rubber gloves. Instructions Cover Your Work Surface. Then finish-sand with 180-grit sandpaper or a fine sanding sponge. Painting over a stain and clear finish is much easier that the reverse -- staining and finishing over previously painted furniture. Sanding can be a tedious process, but it is vital to the overall quality of the woodworking project. 1. Sanding using sandpaper is one of the most popular ways to age wood. There’s also no fixed rule for how to progress through the grits. Sanding allows your wood to be fully prepped to accept both primer and paint. For most of us, finishing means applying varnish, polyurethane, or paint with a brush. “The problem with sanding down to the wood is that it creates the potential for moisture to seep in or out of the wood,” says Chris. Without a smooth base, you can’t get a smooth finish. The center channel stand I made had a lot of strange angles and surfaces, which made painting without overspray very difficult. Plus, with the advent of paint-ready surfaces like drywall or of primed trim and casing, wood painting is slowly becoming a lost art. Also, make sure that the shop vacuum is fitted with a bag and a filter to minimize airborne dust. You can finish-sand both of these surfaces with #180 grit, for example, but you might begin with #80 grit on the solid wood and #120 grit on the plywood. When you have used up one side, turn the folded sandpaper and use the other. Find Paint Products If you can’t avoid cross-grain sanding, you will have to find a compromise between creating scratches fine enough so they don’t show and coarse enough so the stain still darkens the wood adequately. Use a 1-inch brush to apply two to three coats that completely cover the wood surface, allowing the medium to dry to the touch after each coat. However, for the best results, you should use the primer or Oil Bond method to clean the area you want to paint using a rag. But these finishes can be made ultimately smooth simply by sanding between cured coats or sanding each additional coat while it is still wet on the surface using #400- or #600-grit sandpaper. Gently dab the roller into the paint. Home Wood and Supplies Sanding and Abrasives. Wet sanding is a great way to improve a good paint job and can even be used to help improve the quality of a poorly laid paid layer. Keep a wet edge at all times to prevent lap marks. Using a medium-grit sanding sponge, scuff corners, edges, and details where the piece would naturally show wear, letting the underlayer of paint—and even a bit of raw wood—peek through in spots. Remove the primer dust with a quick brush from the shop vacuum, followed by a light swipe of the tack cloth. If the block is hard (wood, for example), it’s best to have some sort of softer material such as cork glued to the bottom to improve the performance of the sandpaper. The dream of a glass-smooth tabletop is always spoiled by brush marks and bits of dust and other debris. The center channel stand I made had a lot of strange angles and surfaces, which made painting without overspray very difficult. What Grit Sandpaper for Wood Before Painting? Here is a quick video to show you how. Liquid sandpaper dulls a glossy surface, with far less effort! After drying, if the primer looks transparent on the wood, prime a second time. The primer will have a chalky feel and appearance but this will be smoothed over by the paint. No matter which of the three sanding methods you use, always remove the sanding dust before advancing to the next-finer grit sandpaper. Second, wet the wood then look at it from different angles into a reflected light. A lot of knowing when you have sanded enough is learned by experience. These sticky rags should be reserved for removing the small amounts of dust after sanding between coats of finish. The best policy is to always sand in the direction of the grain when possible. Transfer the paint to the wood, dragging the brush in short strokes that run parallel to the wood grain. Make sure to eliminate all ridges. Rinse the area with clean, warm water and a clean cloth. Do not apply pressure to the sander other than the weight of the sander itself. Step down your grits and finish with an ultra-fine grit. The process is called sanding because the main element used for wearing out the fibers is sand. For highly irregular surfaces, such as furniture, crown molding, and trim, it is best to use a paintbrush only. Thoroughly remove sand… For flat surfaces, switch to the roller to speed up the process and to provide a smoother finish. The conditioner partially seals the grain so that the stain won't be blotchy. Shop vacuum cleaner. The intent is not to strip the wood of all of the coatings and stains but simply to smooth out the surface and provide some "tooth," or slight scratches, to help the paint bond. Dwell time: 30 minutes to 24 hours Removal: Scrape off the paint with a plastic scraper, and use an abrasive pad and mineral spirits to remove any lingering residue. Let the primer dry completely, then sand it down before painting. Sanding: Before painting new wood, sand all surfaces and edges lightly to smooth the grain. Sand All Surfaces to Remove the Shine. Wet-sanding also helps to prevent the sandpaper from clogging with dust, remove loose abrasive particles and reduce airborne dust. In the following articles, learn how to sand wood through a variety of methods, from hand sanding to using specific types of power sanders. You can usually achieve an even smoother coat if you opt to sand and paint one final time. Sand Your Primer. Sandpaper and power sanders provide another quick way to remove old Start with a medium grit if needed. Vacuum up the dust. The plastic keeps the paint from soaking through to the floor, while the canvas provides a non-slip surface and helps to contain paint spills. Click here to Pin this post for later. Sand your furniture piece smooth. As in the example mentioned above, if you're working with a rough piece of wood like palette wood or old, worn-out wood, make sure you put it through several grits of sandpaper … Thanks for sharing this useful tips. Then, remove the sanding dust and apply a suitable primer. Sand with the grain to avoid ripping the wood fibres. To get paint to adhere to wood, you have to sand it, to rough up the surface. Spot-prime the filler and any bare wood. Go a step further and apply a clear polyurethane over the painted surface to help protect the paint, as well as the underlying wood. Use very fine 220-grit sandpaper, and apply light pressure to prevent gouging the primer. Painting wood furniture has to be one of the best ways to transform it on a dime (hello, flea market finds! A brush kicks the dust up in the air to dirty your shop and possibly land back on your work during finishing. Most woodworkers use random-orbit sanders because they are very efficient, easy to use, and they leave a less-visible scratch pattern than vibrator sanders due to the randomness of their movement. Citristrip: This wood stripper is an orange gel, best on furniture details and flat surfaces since it is thin. It’s not necessary to get all the dust out of the pores. Then a stain was applied and the excess wiped off. Here's how.1. TSP is a strong cleaner, degreaser, and deglosser that has long been used for cleaning surfaces in preparation for painting. Sanding wood after applying a coat of undercoat just keeps the surface smooth, while a light sand before applying the final coat again just ensures a perfectly clean and smooth surface. Then, apply a layer of Oil Bond on to the cleaned surface. Wait two days to allow the paint to dry completely. (I find the rubber sanding blocks, available at home centers, too hard, wasteful of sandpaper and inefficient because of the time involved in changing sandpapers.). Let the sander’s weight do the work. Vacuum sanding dust and debris around the area where you'll apply the paint, especially the floor and overhead lights. Using your hand to back the sandpaper can lead to hollowing out the softer early-wood grain on most woods. Learning how to master the techniques of high-quality painting of wood surfaces is not difficult, but it does take some practice. Paint becomes more durable after it fully cures. I love this gently weathered wood look! Simply move the sander slowly over the surface of the wood in some pattern that covers all areas approximately equally. The most efficient method of doing this is to begin sanding with a coarse enough grit of sandpaper to cut through and remove the problems quickly, then sand out the coarse-grit scratches with finer and finer grits until you reach the smoothness you want – usually up to #150, #180 or #220 grit. Compressed air works well if you have a good exhaust system, such as a spray booth, to remove the dust. Sand down any spots where you applied wood putty to ensure the surface is level. If necessary, fill them with a wood filler using a flexible putty knife. If the outside paint layer is gummy, use a “clog-resistant,” or “self-lubricating,” sandpaper (such as 3M's SandBlaster paper). It’s a life changing product that has been around for years, but I just never noticed it nestled in on the shelf at the home improvement store. Next, sand the table with the 150-grit paper, and finish by sanding with the 220-grit paper. If you are sanding critical flat surfaces by hand, you should always use a flat block to back the sandpaper. Sanding cross-grain tears the wood fibers so the sanding scratches show up much more, especially under a stain. However, this does not impact our recommendations. Apply a coat of wood conditioner to open grained wood such as pine or fir. 1. Conditions vary. Apply a final coat of paint, using a brush and/or roller, as desired. For most of us, finishing means applying varnish, polyurethane, or paint with a brush. Here is a most common way to distress painted wood: using sandpaper. 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