The drying time will also depend on the type of paint. Whether you’re painting your own walls, or helping out a friend, you should know some basics. Nonetheless, water-based stains will always require you to sand between the coats of stain. That’s why 24-grit sandpaper is very coarse, while 1000-grit sandpaper is very fine. Probably. Water-based paints will always dry much faster than oil-based paints. Apply second coat. Grit: fine 320. Issue sanding between coats of polyurethane. Dust can settle in the paint or primer as it dries. 0 Members and 1 Guest are viewing this topic. They are categorized according to the coarseness of the abrasive particles used. This will enable new paint coats to bond with existing paint coats. Try to get the "non-filling" type, like the waterproof or aluminium oxide. This is one of those questions where if you ask 20 people you will get 20 different answers. Then vacuum and tack as usual before recoating. I am a fan of the ETS150/3 for sanding between coats. Breathing in formaldehyde can cause headaches, dizziness, and vomiting as well as irritation of your eyes, nose, and throat. RELATED: 9 Clever Alternative Uses for Sandpaper Distinguishing … Comprised of an electrostatically coated, self-sharpening aluminum oxide mineral for increased durability and worklife. 1G1G, Brad Re: Sanding between coats of paint on cabinets, Quote from: Scott B. on March 15, 2014, 09:39 AM, Quote from: JCLP on March 15, 2014, 09:46 AM, Quote from: Scott B. on March 15, 2014, 10:05 AM, Quote from: JCLP on March 15, 2014, 09:28 AM, Quote from: junk on March 15, 2014, 01:17 PM, Quote from: JCLP on April 04, 2014, 09:14 AM. This is because latex will need a rougher surface to make it stick. Note: While you don’t have to sand before you prime, you do need to sand lightly after you prime and between each coat of paint. That is an excellent grit to paint your base coat and clear coat over, including enamels or anything else that you’re doing. Then, sand the spare urethane application. Sand with non-clogging 180- or 220-grit sandpaper or sanding sponges (look for 'non-clogging' or 'stearated' on the label). Nonetheless, water-based stains will always require you to sand between the coats of stain. For sanding cured latex paint you can use coarser grits. ), is to remember that what you are putting down for a coat has as much to do with the finish sanding experience as the sanding itself. Could anyone give me advice on what type of sandpaper, Aluminum Oxide, Silicone carbide or natural garnet, would give me the best finish when sanding between coats of paint. A good tip: Spray a fine mist of water over the sanded surface that will raise the grain. Although such grit numbers work quickly, they leave gouges on dries compound which can be seen under the paint. This will enable new paint coats to bond with existing paint coats. The reason why is because the water in latex paints evaporates to let the paint dry, and there’s no water in oil-based paints. Aside from the varying grits of sandpaper, you can buy specialty sandpapers such as for sanding in between coats of paint and surface-removal sandpaper, which is fine-grit sandpaper that does a good job on latex paint. My hope is this site can help build those Hammer Addicts like me! It does this by cutting the fibers on the material’s surface. You have to choose the right sandpaper grit to use sandpaper properly. But, you should sand between every coat. I prefer the 320 grit between coats. P360-P600 Super Fine. When sanding before the final coat, switch to 800 grit paper. If it doesn’t, the grit and backing material may … Remember, the finer the paper, the smoother the surface. Therefore, the recommended grit numbers for sanding drywall are between 120 and 150. For the smoothest possible topcoat, hand-sand the entire door after the primer and between coats of paint. There are some health risks associated with crystalline silica when sanding it. I've been using polyurethane for 40 years or more. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Even though you can’t sand walls between coats of latex paint, it is important to sand cabinets, doors, and trims between coats because that gives them a glossy finish. Since you're worried about dust, you could see if wet sanding is an option for the type of lacquer you're working with. If you are sanding between coats of varnish and need a high-gloss finish, look for a P320 grit. eval(ez_write_tag([[300,250],'hammeraddict_com-large-leaderboard-2','ezslot_6',135,'0','0'])); When painting with latex paint, open the windows and use a high volume fan in the window to exhaust the paint fumes. To sand your wall, take a piece of sandpaper and wrap it around a block. No matter where the texture came from, you can easily get rid of it by knocking it down with some light sanding. Paint, especially gloss paint, does not like to stick to itself. Then, sand the spare urethane application. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Comprised of an electrostatically coated, self-sharpening aluminum oxide mineral for increased durability and worklife. My name is Justin. How to Make Emulsion Paint Waterproof (Easy Guide). If third coat is desired, repeat step 5 before application. Sand Lightly Between Coats Dust can settle in the paint or primer as it dries. Personally I had to use the y connection with an adjustable blast gate to get the suction down low enough when using my CT26 or 36 in conjunction with the RTS or DTS. This is standard practice with any wood finishing job, and is nothing out of the ordinary. Looking back, I was using the wrong sandpaper the whole time. How important is an organic crib mattress? 180 to 220 Grit Sandpaper: Finer grit sandpaper is great for removing the scratches left by coarser grits on unfinished wood and for lightly sanding between coats of paint. Paint a … If you are sanding primer, start at 180 or even 220/240, and go up with each successive coat. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. You can go with 36, 60, and 120 grit level sandpaper. Sanding. At this point along the wet sandpaper grit chart, the options are ideal for smooth buffering as well as the removal of thick paint. Use 220 grit (as a rule) for sanding between coats. Thorough sanding is required to ensure optimum adhesion between coats to create a smooth undercoat. Semi-gloss paint is somewhere in the middle of the paint sheen scale, and they will take an average amount of time to dry. Since you are brushing/rolling you might be trying too hard to make the surface smooth. From the Manufacturer. You should only sand your urethane coat to remove problem areas, such as scratches, ridges, bubbles or other problems that have developed in the paint. Remove sanding residue with a vacuum that has a soft bristled brush attachment. If you are sanding off something with a lot of grit, you need to keep a close eye on your process. A little sanding between coats help the adhesion. You do follow the dry/tack times for the paint system(s) as well. Long term exposure develops into silicosis, which develops into cancer. Some people even paint over 280 grit-sanded surfaces. When people ask what grit of sandpaper is suitable for a wet sanding primer, 240-grit is a popular answer, because a wet, folded 240 will generally offer durability during a sanding job. If you want to use latex-based paint over oil-based paint, you will have to sand it first. The particles (also known as grains or grit) are sifted through screens and sorted by size before being bonded with adhesive to a paper, sponge, or cloth-type backing to create an abrasive material that’s handy in a number of do-it-yourself situations.