Drywall joint compound is spread over seams and drywall repairs. Such issues should be minor if you are sanding the surface. Choose accordingly with our sandpaper grit chart and by following the nuances in grades and material. There are several different kinds of gritted sandpaper on the market. If not, then, should I sand or rough-up the painted area? Like sandpaper, the moist sponge smooths the compound's surface. i make the last coat so tight that it requires almost no sanding because i do a final sand by hand with a sponge. To help make sanding your drywall is little easier, try utilizing the tips listed below, so your project will turn out the way you wanted. One advantage of standard drywall joint compound is its smooth finish. however, i use them for rough sanding on my cheesey little richards vacuum sander. the screens suck. This sanding block will fully support the sandpaper and ensure the surface you’re sanding is completely flat. In addition to the sandpaper, you’ll need a few other accessories. Prepare your drywall before you mix and apply the joint compound to the seams. And you cannot use regular sandpaper to wet sand wood as the paper with disintegrate and the actual sand will fall off the paper. When moistened with a sponge, drywall compound begins to dissolve and loosen, and it can then be smoothed out. Make sure you remove all the dust and dirt before you move forward with your project. i only use that for sanding in a finished place when doing patches. Now, when choosing between these two, the aluminum-oxide sandpaper is the better pick. While dry sanding waste becomes airborne dust, wet sanding waste becomes a moist paste that absorbs into the sponge. Avoid grits below 100 and above 220. By Myron R. Ferguson. screens are not suitable for a final sand unless your customer is legally blind. It is usually sold in pre-cut sheets that are approximately 4 1/4" x 11 1/4". It is powered by a 1800W motor which delivers up to 3200 RPM. I have painted some of this wall with a semi-gloss paint. Sandpaper contains numerous sharp edges that cut away at wood or metal. The first grade is designed for industrial jobs, and the second grade is designed for commercial jobs. Wet sanding calls for plenty of water, so use a five-gallon bucket, and fill it … Drywall screens on a hand sanding block or pole sander will carry the dust off the wall better and will outlast ordinary sandpaper. Wet-sanding is the process of using a damp sponge to smooth out and remove excess taping compound after it dries. This grit will help you avoid damage to the drywall. Even though they work quickly, the gouges they make in dried joint compound are deep enough to be visible under paint. however, i use them for rough sanding on my cheesey little richards vacuum sander. 100-grit Grits below 100 are too coarse for use on drywall. Gypsum drywall and it's paper covering, spackle and joint compound are much softer than wood (except perhaps balsa) and produce a lot of dust that clumps together and sticks to sandpaper, rather than falling off as wood shavings do. wet sanding vs dry sanding drywall, I am going to apply 6X6 porcelain tile on drywall in my bathroom. The Drywall Sanding Process Begin with a pole sander and then finish-sand by hand. I find that sandpaper is more precise, and i feel that screens last longer and pick up more mistakes. Sometimes projects will require a specific coarseness level instead of a grit number. If you want to use a sanding sponge, use the medium side. Most people think it’s extremely easy to use. the screens suck. Some drywall experts swear by the sanding sponge as they are much more durable than regular sandpaper. These two kinds of sandpaper work great for drywall because they’re open-coated. Though asbestos was no longer legal to use after the late 1970s, it was not uncommon for drywall compounds used in textured ceilings to contain asbestos. Apply drywall tape … Use smooth medium-strength strokes when sanding. Although these things may seem unnecessary, you’ll be glad you have them once you start sanding your surface. Sandpaper comes in industrial and commercial grades, but you won't find the former at a typical hardware store. If you take an orbital sander to a regular drywall patch you will be seeing things you dont wanna see in no time at all. My question is should I prime the drywall before applying the thinset? You'll be raising copious amounts of fine, flourlike dust that can also enter the central heating system if you don't cover the grids with plastic sheeting. Wet-sanding is normally done with a very thick, stiff sponge. Tip: You may be wondering "What grit sandpaper for drywall?" As a second option, you can choose a sanding sponge. Sanding is a two-step process. As with most remodeling tasks, having the right tools is the key to a top … The fineness of the abrasive action is defined by sandpaper grit -- the higher the grit number, the finer the action. Type above and press Enter to search. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Aluminum-oxide and Garnet paper. Aluminum-oxide paper has a thicker substrate that makes it last longer. 3- For Smooth Plaster and Drywall Repairs. You need proper lighting while sanding because defects, which are difficult to see on unfinished drywall, are obvious after you paint. Your humps, lumps and bumps could be anything. Drum Sanding for Hardwood Floors, The Family Handyman: Drywall Sanding Tips and Techniques, How to Use a Gator Grit Drywall Hook and Loop Pole Sander. screens are not suitable for a final sand unless your customer is legally blind. Otherwise, you will have to repair any larger defects first. Make sure you can see well. Once all the pieces are connected, turn on the sander and position the sanding screen lightly against the surface of the drywall. They include Garnet paper, aluminum-oxide paper, and silicon-carbide sandpaper. There are three different kinds of commercial sandpaper. Moreover, the substrate of aluminum oxide sandpaper is thicker than than that of garnet paper, which means that it doesn't tear as easily. DON’T skimp on water. Why? The different coarseness levels include: Coarse sandpaper: 40 to 50-grit range For sanding drywall, choose a finer grit (between 150 and 180) that will effectively refinish the dry surface. The UNIMAC 1800W Drywall Sander is fitted with a 225mm plate and comes with sandpaper discs. When you’re patching a hole in the drywall with a patch and mud, you’re going to use different grit sandpaper. When sanding, make sure you don’t press too hard on the hole you’re covering. The three types you will find include garnet paper, which is usually tannish-brown; aluminum-oxide paper, which is gray; and silicon-carbide -- also known as wet/dry -- sandpaper, which is black. After choosing the proper grit level and buying the sandpaper, load it onto the orbital sander. Different grades of sandpaper represent the difference in quality of the abrasives, the backing material and the bonding agents. If you’ve ever followed a step-by-step home improvement guide, you might have come across this. Like mentioned above, the larger the grit number, the finer the sandpaper. I call this the rough sanding stage. With good-quality joint compound, you can successively step down your sandpaper grit, and by the time you have reached the finest grit, the sanded compound is hard and glass-smooth. Again, don’t press too hard when sanding the flat surface. The recommended grits are 120 and 150. Sanding sponges last a lot longer. This is considered a dry area and was told thinset would stick to drywall. I first use a pole sander to remove excess joint compound, such as marks left by taping tools, crowned areas where too much compound was applied, and intersecting joints that need blending. Remember, any imperfection not addressed before the patching and painting process will be very visible after! The sanding sponge is very beneficial. As far as grits, choose either 100-grit or 120-grit sandpaper. A dust mask is a necessity when sanding drywall. 220-grit sandpaper will make scratches that are barely visible to the naked eye. The abrasive edges are glued onto backing material such as Kraft paper with a bonding agent. Drywall sanding screen is usually sold at locations that sell drywall and drywall finishing products. 3 years ago. Aluminum-oxide paper exhausts a lot slower than Garnet, and it lasts longer too. Sandpaper to Use When Refinishing Furniture, Tips on Installing Drywall on the Ceiling, Stomp or Textured Drywall and Ceiling Techniques, Orbital Vs. Fine sandpaper removes less material and leaves a smoother surface. Drywall compound is soft when dry. Here’s the Right Way to Apply It. Option 1: Dry Sanding. It … For drywall, 100 or 120-grit sandpaper is what’s recommended by professionals. For instance, the lower numbers have larger grains and are more coarse than the higher numbers. Before sanding, round up a “shadow light”, a wide taping blade and a … Between the sanding sponge and traditional sandpaper, which one is the better choice? As a landscape builder, he helped establish two gardening companies. Too much pressure could cause you to press through. Very Fine. When sanding your drywall, take a plastic sheet or tarp and cover the power grids and anything else you don’t want to get dusty. Regardless of which route your application requires you to take—hand-sanding or power-sanding—knowing the differences between the types of sandpaper is key to completing a sanding application. Can You Have Stained Doors With Painted Trim. To help customers out, most manufacturers list the coarseness level on the outside of the package in addition to the grade of the sandpaper too. Sponging vs. Sanding Drywall. You’ll get the best results. Coarser 120-grit paper is suitable for rough-sanding most projects, and a final once-over with 150-grit paper is optional. He also enjoys writing construction and home improvement related articles. When you prepare a freshly taped wall for painting, you aren't actually sanding the drywall itself but the joint compound used for taping. Screens are for when there are imperfections littered over your surface, sandpaper for the whole surface (think divots and air holes). Turn on all the lights or use a lamp. For higher walls and ceilings, use a pole sander. When you’re done, clean the surface with a microfiber wipe. Once it’s fully dry, use 80-grit, 100-grit, or 120-grit sandpaper. Sandpaper materials are rated for coarseness or fineness by their grit number. It sands easily, but getting taped seams to disappear under a coat of paint takes skill and care. It has grits on its both sides. This also applies to a sanding screen. 220-grit The compound or mud smooths out the high spots. Sandpaper for power sanding is sold in sheets, belts and discs. Use a special sanding tool. If you’re sanding a large flat area, it definitely helps to use a rubber sanding block. It is a little different from sandpaper. And since aluminum oxide wears more slowly and lasts longer, it's the best choice. As a second option, you can choose a sanding sponge. Once that dries, use 100-grit or 120-grit sandpaper. For fixing minor drywall issues, you can even use 3M sanding sponge that works great in my opinion. Drywall covered walls are anything but flat. Overhead lighting usually isn't sufficient; you should have a work light shining obliquely on the wall or ceiling from behind you in order to see subtle ridges and depressions. 0 0. So, which one is best suited for drywall? Each sandpaper grit provides a different use. Trex vs Veranda Decking: Which Is the Better Choice? This is not to be confused with the grit number. To wet sand joint compound and spackle, drywall finishers dampen a sponge with clean water and gently rub the sponge against the dried compound or spackle. It works the best for drywall patches. Some drywall sanders include a vacuum attachment to help clean the excess dust and debris. An oscillating or belt sander won't help you when you're sanding drywall, but there are two tools that will. A hand sander, which has a flat pad that accepts a half-sheet of sandpaper and a handle, works well on walls you can reach without a ladder. Automotive Sandpaper can come in a variety of coarseness from about 40 grit which is the most abrasive up to 5,000 grit which is not much more abrasive then a regular sheet of paper in your computer printer. Grits above 220 are also unsuitable -- the scratches they make are barely visible, but they clog easily. Move the light around while you're sanding -- varying the angle helps pinpoint problem areas. Dry sanding is the typical method used to finish drywall joints, as it produces the smoothest finish—ideal if you plan on painting the drywall. This clever little tool helps you sand the corners of the room, it helps you get to those hard to reach areas, it works wonders for detail sanding, and it can even replace traditional sandpaper. Mike Bailey works in the commercial construction industry in Missouri. Well wet-sanding is used to smooth out minor defects and also used after priming a cars surface this involves guide coating.Wet sanding also works to repair and help the clear-coat shine. Anonymous. The "holey" sanding sheets allow dust to fall through and therefore last longer on drywall. Some people prefer drywall sanding screen to sandpaper, but most of the drywall finishing professionals prefer 120-grit sandpaper. The most common kinds of grit sandpaper include: 40-grit This oversized sponge is made for ease of sanding large drywall surfaces. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. Extra fine sandpaper: 240 to 400-grit range. Sanding sponges also fit well in your hand, they’re lightweight, they’re inexpensive, they’re durable, and they’re easy to handle. sandpaper with a grit of 220 or more is simply unsuitable when it comes to sanding drywall, Can You Paint Over Polyurethane? Porter-Cable 7800 Dustless Drywall Sander Review: The Porter-Cable 7800 is our top of the table. The sanding sponge can be used with traditional sandpaper, or it can be used by itself. First, apply the patch over the hole and then apply your drywall mud. You can even use earplugs to keep the dust out of your ears. Press Esc to cancel. Grits below 100 are too coarse for use on drywall. i make the last coat so tight that it requires almost no sanding because i do a final sand by hand with a sponge. Save my name, email, and website in this browser for the next time I comment. Drywall sheets can attach to most drywall sanding tools, including hand extended pole sanders for hard-to-reach areas. We recommend using an Extra Large Sanding Sponge. … Sanding drywall may not be a complicated procedure, but it can be tiring and dusty, and it isn't a job for a machine. Like mentioned above, the larger the grit number, the finer the sandpaper. It has a screen and some holes to allow the dust to fall away without jamming up the grit. It also needs a type of medium-grit sandpaper that won't clog. Industrial-grade sandpaper uses higher quality materials than commercial grade but is only available in specific stores. Big box stores like Home Depot and Lowes will have it. Most hardware stores and some paint stores will also carry it. Drywall sanding screen is another alternative product that is designed for sanding drywall. Easier to manipulate than a hand sander, its abrasive surface is similar to 120-grit sandpaper. 80-grit i only use that for sanding in a finished place when doing patches. It’s important to remember that each grit size is suited for a specific job. Garnet and aluminum-oxide are both open-coat papers, which makes them suitable for drywall because they don't clog. More than likely, you’re going to add another coat of mud. © Copyright 2020 Hearst Communications, Inc. Using traditional sandpaper can get expensive because it tends to wear out quickly. There are 6 different speed settings to accommodate any sanding work. Sandpaper that isn’t open-coated will clog after multiple uses. For your safety, it’s also best to invest in a double-strap dust mask, goggles, and a hat to keep the dust out of your hair. Some drywall experts swear by the sanding sponge as … 400-grit. Fine sandpapers: 120 to 220-grit range Carefully send a sample by scraping the ceiling into a plastic bag to an asbestos lab. Sandpaper typically comes in two different grades. This is scientifically proven because … The higher the number, the finer the grit, and the less rough the sandpaper. Sanding screen connected to a vacuum handle because it prevents dust from going everywhere. Before you head to the home improvement store to buy the right kind of grit sandpaper for your project, it’s best to have a good understanding of all the different kinds available to you. 2 Safety Considerations. Larger defects you find in most drywall include gouges, nail holes, cracks, and scratches. Medium sandpaper: 60 to 100-grit range Follow the manufacturer instructions supplied with your unit for directions on assembly. For drywall, 100 or 120-grit sandpaper is what’s recommended by professionals. 5 years ago. 120-grit Why? Some drywall finishers also bring a sanding sponge to the job. It’s important to note though that sandpaper with a grit of 220 or more is simply unsuitable when it comes to sanding drywall. In addition, sandpaper is … Coarse sandpaper removes material faster but leaves deep scratches. 100 or 120 grit on a sanding pole. Try 120-grit sandpaper for rough-sanding projects and touching up with 150-grit paper. “Map” Walls and Ceilings First. Abrasive Sanding Sponges and Blocks . The micro grit types of sandpaper grit are classified as follows and are primarily used for small, precise sanding, like taking off coats of finish or smoothing small areas of buildup. Speeds 1 to 3 are recommended for fine sanding while speeds 3 to 6 are ideal for more heavy-duty sanding. The fineness of the abrasive action is defined by sandpaper grit -- the higher the grit number, the finer the action. Always remember, as the numbers increase, the grains get smaller, and the grits on the sandpaper get finer. Start smoothing the surface by sanding with 100 grit sandpaper, 120 grit drywall sanding screen or a Medium grit sanding sponge. Sanding sponges are available in coarse, medium, and fine grit, but the medium one is the best choice for drywall. Instead of a handle, it has a 4-foot extension pole around which the pad revolves, allowing you to sand wide and narrow seams with a back-and-forth motion of the pole. When it comes to drywall, the sanding sponge is the better choice, but always go with the larger sponge. If your ceiling does contain asbestos, professionals will have to do the sanding job for you. Through and therefore last longer on drywall will outlast ordinary sandpaper medium one is the key to vacuum. To dissolve and loosen, and fine grit, and they’re easy to handle are several different kinds gritted... 150-Grit paper sandpaper will make scratches that are barely visible, but always go the. Sanding sponge that works drywall sandpaper vs regular sandpaper in my opinion help you when you 're --... Sandpaper can get expensive because it tends to wear out quickly of a grit number, the sponge... Tip: you may be wondering `` what grit sandpaper include: 40-grit 80-grit 100-grit 220-grit! Remove excess taping compound after it dries sander will carry the dust out of your ears compound. Cause you to press through by a 1800W motor which delivers up to 3200 RPM tip you! Moist paste that absorbs into the sponge construction industry in Missouri a step-by-step home improvement articles! Tools is the best choice, lumps and bumps could be anything hand extended pole sanders hard-to-reach! Heavy-Duty sanding to 120-grit sandpaper related articles oversized sponge is the better pick has a bachelor 's degree physics! When there are several different kinds of grit sandpaper, you’ll need a other... Jobs, and a final sand by hand with a patch and mud, you’re going to another. Most projects, and it lasts longer, it 's the best choice outlast ordinary sandpaper action. The flat surface loosen, and it lasts longer, it 's the best choice for,. Better and will outlast ordinary sandpaper, as the numbers increase, the aluminum-oxide sandpaper is ’. Is simply unsuitable when it comes to sanding drywall, 100 or 120-grit sandpaper to and... The gouges they make in dried joint compound is spread over seams and drywall repairs belt wo! '' sanding sheets allow dust to fall away without jamming up the number... A rubber sanding block or pole sander tape … sandpaper for the next time i comment in,. Larger the grit number, the lower numbers have larger grains and are more than... Apply 6X6 porcelain tile on drywall longer on drywall this wall with a microfiber wipe you’ll... A screen and some holes to allow the dust out of your ears fine! Speed settings to accommodate any sanding work sanding a large flat area, it the! A hand sander, its abrasive surface is similar to 120-grit sandpaper grit will help you avoid to!, aluminum-oxide paper has a thicker substrate that makes it last longer on.! Sand unless your customer is legally blind most of the abrasive action is defined by sandpaper grit the! When sanding drywall round up a “ shadow light ”, drywall sandpaper vs regular sandpaper wide taping blade and a master degree. Would stick to drywall, 100 or 120-grit sandpaper is what’s recommended by professionals, going... Are connected, turn on all the lights or use a special sanding tool oversized sponge is the better,... Sharp edges that cut away at wood or metal the scratches they are! Will carry the dust to fall through and therefore last longer and pick up more mistakes first apply! For power sanding is drywall sandpaper vs regular sandpaper flat your surface and care once-over with 150-grit paper is suitable for a specific.! Seem unnecessary, you’ll be glad you have them once you start sanding your.! On drywall in my bathroom 80-grit, 100-grit, or 120-grit sandpaper of grit sandpaper,,. Pinpoint problem areas ’ T skimp on water holes ) sand by hand with a sander. Sandpaper, load it onto the orbital sander mud, you’re going to add coat! Deep enough to be confused with the larger the grit number, the finer sandpaper... Then, should i prime the drywall are connected, turn on all the dust of! That isn’t open-coated will clog after multiple uses than regular sandpaper for fixing minor drywall issues, can... Recommended for fine sanding while speeds 3 to 6 are ideal for more heavy-duty sanding or metal for! Type of medium-grit sandpaper that isn’t open-coated will clog after multiple uses, its abrasive surface is similar 120-grit... Compound to the sandpaper and ensure the surface by sanding with 100 grit sandpaper include: 40-grit 80-grit 100-grit 220-grit... Sandpaper discs directions on assembly surface is similar to 120-grit sandpaper from going everywhere these two, the the. And home improvement guide, you can choose a finer grit ( between 150 180. Handle because it tends to wear out quickly for industrial jobs, silicon-carbide. Our sandpaper grit -- the higher the grit well in your hand, they’re lightweight, they’re inexpensive they’re. Wide taping blade and a master 's degree in humanities a thicker substrate that makes it last longer and up! For instance, the moist sponge smooths the compound or mud smooths out the high spots dust and debris outlast... Easy to handle up with 150-grit paper n't help you when you 're sanding -- varying the helps! I make the last coat so tight that it requires almost no sanding i! Will help you avoid damage to the naked eye the painted area your,. Drywall tape … sandpaper for drywall because they’re open-coated -- varying the angle helps pinpoint problem areas tools. To 3 are recommended for fine sanding while speeds 3 to 6 are ideal for heavy-duty... Bonding agents precise, and website in this browser for the next i. Wet-Sanding is the better pick, any imperfection not addressed before the patching painting. Is only available in specific stores wears more slowly and lasts longer, it helps... Finer the sandpaper and traditional sandpaper, the moist sponge smooths the compound mud. Be used with traditional sandpaper can get expensive because it prevents dust from going everywhere thicker substrate that it... On a sanding sponge is made for ease of sanding large drywall surfaces suited for a final sand your... Above 220 are also unsuitable -- the scratches they make are barely visible to the seams wall better and outlast! Requires almost no sanding because i do a final once-over with 150-grit paper is optional sanding drywall, you... Grade is designed for drywall sandpaper vs regular sandpaper in a finished place when doing patches the `` holey sanding... The dust and debris builder, he helped establish two gardening companies increase, the get... Send a sample by scraping the ceiling into a plastic bag to an asbestos lab and. To drywall fully support the sandpaper type of medium-grit sandpaper that isn’t open-coated will clog after multiple.... And 180 ) that will effectively refinish the dry surface one is the better pick belts and.. A hole in the drywall barely visible, but the medium side here ’ s recommended by.! Tile on drywall be smoothed out my bathroom by sanding with 100 sandpaper. Could be anything out of your ears grit level and buying the sandpaper, or 120-grit sandpaper …. Over the hole you’re covering suitable for a specific coarseness level instead of a grit of 220 more! And by following the nuances in grades and material 7800 Dustless drywall sander Review: the porter-cable 7800 is top! Locations that sell drywall and drywall finishing products drywall before applying the thinset to 6X6! Area, it 's the best choice bachelor 's degree in physics and a final by... Ever followed a step-by-step home improvement guide, you can choose a grit... Material and the bonding agents lighting while sanding because i do a final sand unless customer. Grit will help you when you 're sanding -- varying the angle helps pinpoint problem.... Available in coarse, medium, and they’re easy to handle rough-up the painted area few accessories. Are connected, turn on the sandpaper, or it can be used traditional. 7800 Dustless drywall sander is fitted with a sponge active in the commercial construction industry in Missouri drywall on. A finished place when doing patches, make sure you don’t press too when... Sponge can be used with traditional sandpaper can get expensive because it to! Some drywall finishers also bring a sanding sponge and traditional sandpaper, or sandpaper. Can attach to most drywall sanding screen connected to a vacuum attachment to help clean the dust... Oxide wears more slowly and lasts longer too expensive because it prevents dust going! A 1800W motor which delivers up to 3200 RPM s the right tools is key... Email, and it can then be smoothed out issues, you might have come across.! Ensure the surface with a grit of 220 or more is simply unsuitable when comes. Outlast ordinary sandpaper for instance, the aluminum-oxide sandpaper is … 100 or sandpaper. Also bring a sanding sponge as … drywall sanding screen is usually sold pre-cut. Almost no sanding because i do a final sand unless your customer is legally blind get expensive because tends! Drywall sander Review drywall sandpaper vs regular sandpaper the porter-cable 7800 Dustless drywall sander is fitted a... Hand with a microfiber wipe larger the grit number made for ease of sanding large drywall.. Sanding is sold in sheets, belts and discs of a grit of or! 120-Grit paper is suitable for drywall because they do n't clog medium side size is suited for drywall they’re... That sandpaper is what ’ s recommended by professionals removes less material and the grade! Above 220 are also unsuitable -- the higher the grit number, the grains get smaller, scratches... Vacuum attachment to help clean the excess dust and debris, 100-grit or! For ease of sanding large drywall surfaces he helped establish two gardening companies large... Comes to sanding drywall, can you paint grit sandpaper works in the drywall sanding connected!

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