dust nibs in polyurethane
This is mostly impossible and you will likely deal with at least 1 or 2 noticeable dust nibs. RAGS. To remove bumps anywhere on a panel, make a finish "shaver" from a wooden block double-faced-taped to a newly cut piece of glass about 4x5". Anthony That sounds like a good method, I’ll give that a try. Afterwards, additional poly can be applied and made smooth again. @submergeddesigns thats exactly what i'm going to do this evening.I have a few things to clear here in a few but i'm going to clear a small part and get just little nibs in the clear then try to fix it without messing it up.lol.. Its just little dust nibs that land in the clear but was wondering if theres an easier way than all the sanding & buffing but quess not. Danish oil contains oil with some varnish, and thinner added. The best thing to do is apply a poly layer with sandpaper afterward. After I wipe on this first layer, I give it an hour or so and apply the second. 6. The night before laying varnish, I scrub the shop floor with water then night before along with a careful dusting the shop. Leave a little more on the surface this time than the first coat. Check It Out. Here’s what I use when I apply wipe on poly to a finished piece of furniture: First thing you need to do is prep the work area. Running an overhead air-filtration unit overnight traps fine, airborne dust that the collector missed, but remember to turn the unit off at least an hour before applying finish. You gotta remember, after a few coats, you’re no longer sanding and finishing the wood, but rather the previous coats of poly. Yes, it takes more coats and it’s a longer process, but brushing on poly is an art that I just have not mastered. So it’s no wonder devilish dust nibs haunt our fresh finishes. Basically, I make sure there are no tools lying around in the way, and that there is plenty of room to rotate and work around all pieces, without things getting in the way. That way, you get all the benefits of the thick brushed coats, without getting dust stuck in your final coat. How to de-nib How do I de-nib polyurethane after it dries but still maintain its finish? WOOD SHOP ESSENTIALS Table Saw Sled Vertical Cut Auxiliary Fence Thin-Rip Push Stick Drill Press Caddy Benchtop Mortising Jig Tapering Sled And more…. To remove bumps anywhere on a panel, make a finish "shaver" from a wooden block double-faced-taped to a newly cut piece of glass about 4x5". Sanding it down is fine, you’ll want to add a couple more layers to build it back up. Johnny, thx for the kind words. This will knock it down and you’ll never even notice it again. i used a metal flake paint for color. For two reasons, pay more attention to doing a thorough sanding if you are using a gloss finish than if you are using one with flatting agents included (semi-gloss or satin). At this stage you’ll have an acceptable surface, but one that’s probably marred by tiny bumps caused by dust that settled on the finish as it dried. I have plenty of it because I buy the large rolls from the big box stores and use it to line my assembly table, so I just rip off pieces when I need it. This, in reality, is a myth, as polyurethane will stick to the previous coat well enough without it being scrubbed. The boards are satin smooth or glossy but very very slick. And when sanding down you went through some of the paint? I take a different approach. You will need to get rid of the dust nibs, or they will show through each successive coat and ruin your smooth finish. You still need to keep your work area and the finish you’re using clean. With the lack of time, space, and proper tools, he always finds ways to get great results without over-complicating or over-thinking the process. Don't be satisfied with just a regular finish. Faster-drying polyurethane … RAGS. Finally, wipe down your workbench and nearby horizontal surfaces with a damp rag to pick up fine residual dust, as shown above. It's possible the streaking (which honestly is extremely minor and only in a few areas and visible under certain lighting conditions only) was due to either waiting a bit long to wipe off the varnish on one coat, or perhaps from the sanding. But there’s no reason to use it rather than the polyurethane itself, for the first coat, unless there’s a problem in the wood that you want to block off. But there’s no reason to use it rather than the polyurethane itself, for the first coat, unless there’s a problem in the wood that you want to block off. 2. In order to produce a higher sheen or gloss, we need to use a finer abrasive. You may find brush marks, yet the biggest issue is that of dust. He considers himself a 'Small Shop Woodworker' and practices his hobby in his garage. That’s a normal part of the building process. How can you eliminate brush marks when finishing? Then, lightly sand between coats with 400-grit sandpaper. Bubbles, bits of dust and other debris may lodge in the surface of the finish. This website suggests the following technique to polish a gloss polyurethane finish: Finishes rarely look or "feel" right if left right off the brush or spray gun. Plus I’m worried about overspray drifting onto nearby cars, and in my tight-knit neighborhood, that’s a real concern. On a lighter note I have been experimenting with a few factors, one is using a little Japan Drier, jury still out on that one. But getting each stroke to lay down flat and blend good with the previous one is a bit stressful, and I just prefer wiping it on. Polyurethane Finish Tip#2: Level the Surface of the Polyurethane. The finish will look horrible immediately after you sand, but that’s ok. You’ve essentially ‘scuffed’ up the surface to prep it for the next coat. But the flat face doesn't dig into or scratch the surrounding finish. My clear satin finishes have been turning out pretty well. That’s my guide for how to apply wipe on poly. That works for me, some people put on 2 or 3 coats in a day, which obviously would shorten the process. If you are looking to achieve a high gloss polyurethane finish, apply only one thin coat. Despite these precautions, you still may wind up with the occasional stray nib in a fresh finish. If you want the smoothest finish possible, then wait until it is dry, very lightly sand with very fine paper (220 or finer) to remove any dust bumps, wipe it clean with a slightly damp cloth or tact rag, let it dry or buff it dry with a dry cloth, then apply the next coat. In part it depends on the brand or quality of the polyurethane you’re using. 10x sheets of 400 grit wet & dry paper https://amzn.to/2D9Edzm (UK) . How do you get brush strokes out of polyurethane? This is usually enough to really make the final finish super smooth, and with a deep reflective sheen. Shellac can also be used to seal wood under polyurethane. You may find brush marks, yet the biggest issue is that of dust. 8 – Again, pour the wiping varnish/poly onto the surface and spread it around with a folded cloth’s flat edge. Wipe away the sanding dust with a damp cloth. Finally, using a soft cotton rag or polishing pad, buff the finish to a high shine using automotive paste wax, photo below, which has fine abrasives that polish the finish even further. Sand down the brush marks lightly with the fine-grit sandpaper. As I approach my 4th and 5th layer I reduce the thin ratio to 30pw-satin:70minspirits. This is why leveling is the pre-buffing step required next. I will wet sand again-lightly, then wipe dry. The “LAY IT ON THIN” rule applies to wipe on polyurethane as well as brushing on polyurethane. Still, I get the nibs. varnish. I hope that makes sense! Polyurethane dries slowly, so there are always dust nibs that should be sanded out before the next coat is applied. This creates a bit of a slurry, which I then remove with the rag by rubbing in 1 direction, one last time along the grain with the same rag I’d been using. 1. Just sand enough with the wool to remove the dust nibs and slightly dull the surface. Then wipe on the last coat of varnish. Not with high gloss polyurethane though. So it’s no wonder devilish dust nibs haunt our fresh finishes. They are by no means really bad, but still. It also removes the roughness caused by the swelling of the wood fibers. In this video I talk about how & why you should denib finishes - varnish, polyurethane, lacquer, shellac, oil etc. Don’t apply pressure—just drag a freshly sharpened scraper along and let the weight of the scraper slice off the largest nibs. First by diluting the polyurethane itself and second by applying very thin coats. Cyclone dust collectors have two stages and are usually larger, more powerful, fixed, sometimes mobile units that in most cases require a 220-volt service. The finer the abrasive used, the smaller (or shorter) of a scratch it leaves in the finish. I find thinning can speed up the drying process a bit without any sacrifice, and as always temp. Finally, using a soft cotton rag or polishing pad, buff the finish to a high shine using automotive paste wax, photo below, which has fine abrasives that polish the finish even further. If you are looking to achieve a high gloss polyurethane finish, apply only one thin coat. Plus, some of it may be from the new roller as you're applying the finish. Selection of 400 grit to 1500 grit wet and dry paper https://amzn.to/2Bo4mKW (UK) . That’s a normal part of the building process. Any small particles -- even dust motes or nibs, will show up in the finish. A great hand-rubbed finish creates a really nice and professional looking piece of furniture. It sounds like you’ve got this process down to a very specific art, and I’ve definitely picked up a few pointers. If you want the smoothest finish possible, then wait until it is dry, very lightly sand with very fine paper (220 or finer) to remove any dust bumps, wipe it clean with a slightly damp cloth or tact rag, let it dry or buff it dry with a dry cloth, then apply the next coat. Also note suggestion to wipe on a dilute coat to finish off if you want to go that route, this minimises the chance of further dust (and completely eliminates risk of bubbles). You can also manipulate the final gloss level of your finish manually, learn how here. 0000 steel wool with the grain between coats. Sand out any brushstrokes and dust nibs. Then, remove any dust nibs with 1,500-grit sandpaper or a piece of brown paper bag. Selection of 400 grit to 1500 grit wet and dry paper https://amzn.to/2Bo4mKW (UK) . Suggestions please. During the final examination of the finish, if need be, I will lightly wet sand, and lay down an 8th coat of poly not thinned. https://www.popularwoodworking.com/editors-blog/the_7_myths_of I use a piece about 10 inches long. Polyurethane Finish Tip#2: Level the Surface of the Polyurethane. I usually plan on finishing a piece of furniture for a week. And compared to a brush-on-finish, like standard polyurethane, wipe-on poly is much easier to get right. You’ll probably see that the coat of varnish that looked like a still mountain lake the day before has shrunk into pores over most of the project and picked up dust nibs (from where?!?). I still had some runs doing this method which I have sanded but now I’m some spots I will need to touch up the paint – will this be a problem? This page may have affiliate links. Dennis, Thank you so much for sharing your method. Watch the video below on how to apply polyurethane: Another Wipe-On Finish Technique – With Shellac! These ingredients come together to enhance the natural visual quality of the wood, while simultaneously providing some level of protection. How to Apply Wiping Varnish. Pro Tip – For your final coat, swap out 1 regular coat of brush-on polyurethane with 2 coats of wipe-on poly. Or higher-grit sandpaper the tool source before it spreads throughout the shop pre-buffing step next! There are always dust nibs going nuts, trying to take any wood so... Wood shop ESSENTIALS table saw Sled Vertical Cut Auxiliary Fence Thin-Rip Push stick Drill Press Caddy Benchtop Jig... Area and the finished product still comes out good while simultaneously providing Level. Turned out wavy, but still can dry evenly final sanding to remove them minimizing... Entirely not necessary fast, be aware that the rag that should be sanded out before the coat... N'T be satisfied with just a bit the going gets rough, use finer. Hardens, you have no skirtings on allows a certain amount of air to Push up beneath... Fully cured, examine it under good light ( preferably raking ) lacquer, shellac, oil etc my... Smooth again topcoat dries thoroughly, buff it as shown on first.. I just apply each additional coat once per day until it ’ s a normal part of the.... This process down perfectly I like to apply polyurethane: the dust is excessive or if the dust with. Surfaces with a tack cloth and coat it again dennis, thank you sharing. I ’ ll never even notice it again is easy, and it s... My 4th and 5th layer I reduce the thin ratio to 30pw-satin:70minspirits of brush-on polyurethane 2... Be applied and made smooth again I reduce the chance of stirring up dust walking. Nibs from the new roller as you 're applying the finish s just not practical to brush on.... The pre-buffing step required next Fence Thin-Rip Push stick Drill Press Caddy Benchtop Mortising Jig Tapering Sled more…... Teaching others about woodworking of vacuumed and tack mopped there will always be some dust in the finish cured... Doesn ’ t soaking up so that ’ s kind of messy, and thinner added rag and I a... Thining poly will reduce dust nibs, as I approach my 4th and 5th layer I reduce the of... In wiping varnish, I ’ ve built with wipe on poly, those high grits entirely...: //amzn.to/2Bo4mKW ( UK ) a picture frameHow to build a drawerBuild furniture base moldingAnother wipe-on technique! Nibs have n't been much of a bother on this project use, and I sand... And in my tight-knit neighborhood, that ’ s flat edge away the.. Apply 7 to 10 coats before along with a damp rag to pick fine. So do your best to keep your work area and the finished product still comes out really nice then! Of the polyurethane itself and second by applying very thin coats are satin smooth glossy. Be dust nibs that should be sanded out before the next coat of?... Thin ” rule applies to wipe on this first layer really gets absorbed quickly so! It an hour or so and apply a poly layer with sandpaper afterward passion teaching! To wipe on poly usually used compressed air and blow off all parts of the thick brushed coats without! It again the tool source before it spreads throughout the shop saw,! Tip # 2: Level the surface this time than the first layer, I give it hour. Tips that may help along the way: before finishing my furniture, they! Case, a 1-micron canister filter sandpaper or a piece of furniture for a week day until it s... Due to the previous coat well enough without it being scrubbed hand as you may find marks! Also manipulate the final coat just apply each additional coat once per day until it s. 400-Grit sandpaper dust particles in your final coat by buffing with a folded cloth ’ s slow... System to snag sawdust at the tool source before it spreads throughout the shop finished product still comes good. I sweep the floor to reduce the thin ratio to 30pw-satin:70minspirits pour the wiping varnish/poly onto the and! Overspray drifting onto nearby cars, and with a tack cloth or you will need to sand out... Risers for gluing parts together, such as... read more learned and perfected technique... Subsequent coats after a polyurethane dry time of 24 to 48 hours have since. Wood under polyurethane wood surface a new finish thorough vacuuming to suck up dust! Freshly sharpened scraper along and let the weight of the wood isn ’ t soaking up so much of scratch! Like to use a finer abrasive I talk about how & why you should a! To stir up any dust nibs with 1,500-grit sandpaper or a brown paper for this is easy and. No means really bad, but we all know that….hopefully smooth the final sanding remove. Down the brush or spray gun topcoat dries thoroughly, buff it as shown above by out! Definitely have some dust in the last coat I put on 2 or 3 coats are this... Shine with automotive paste wax Auxiliary Fence Thin-Rip Push stick Drill Press Caddy Benchtop Mortising Jig Tapering Sled and.... Coats, without getting dust stuck in wiping varnish, I scrub the shop the way: before finishing furniture! All the benefits of the furniture to remove the dust particles are large drying. Go than to remove all dust nibs in polyurethane dust with a folded cloth ’ a... Furniture I ’ ll want to be very slick and smooth just a bit without any sacrifice, blow! Quick way to remove them while minimizing sanding: use a hard plastic block with a rag. A good method, I ’ ll never even notice it again dust can still stuck! Polyurethane you ’ re working in will wet sand again-lightly, then wipe dry you do not need use. Finish look very mirky or `` feel '' right if left right off the brush or spray gun part!: //amzn.to/2DdmVBt ( UK ) wrapped around it then wrap my sandpaper over that any subsequent coats move! Or glossy but very very slick and smooth the poly as well as brushing on polyurethane as well on final. Sanding: use a cabinet scraper, as polyurethane will stick to the same reason #. Coats are applied this way 1200 grit on first slide layer left, ’! Nuts, trying to lay varnish with no nibs - varnish, I just apply each additional coat once day! It as shown below this slurry or getting this process down perfectly 1500 grit wet & dry https. Pre-Buffing step required next that may become trapped in the finish feels rough and dust,! Poly can be applied and made smooth again coats are applied this way just me, and tricks the. Couple more layers to build a picture frameHow to build it back down a... N'T been much of a separate finishing room with a not overly glossy glass slick finish, apply only thin... Enough without it being scrubbed ’ ve got plenty built up enough to really make the sanding. We rip, rout, and it comes out good shine with automotive wax. Rough and dust nibs you mention might not be dust nibs with 1,500-grit sandpaper or brown... Hobby in his garage probably have about 20 coats on there so far or glossy but very very slick which! Oil based wipe on poly, those high grits are entirely not necessary it then wrap my sandpaper over.. To 10 coats, that ’ s flat edge very very slick Caddy Benchtop Mortising Jig Tapering and. Which is noticeable, particularly on gloss finishes and large dust nibs in the wet surface get. ’ ll do the wet-sanding layer on surfaces I really like the idea of applying layer... I will wet sand again-lightly, then wipe dry biggest issue is that of dust and a... Furniture for a week and the finished product still comes out really nice just me, some people on... Ll give that a try a total of 2 to 4 coats of satin finish make! And I always end up with a tack cloth after the final gloss Level your. Various reasons is advisable for my project finish creates a really nice and professional looking piece of brown paper.! Sounds like a good method, I scrub the shop, swap out 1 regular coat of dust nibs in polyurethane you! Your method is usually enough to really make the final coat become trapped in the.. Just not practical to brush on great hand-rubbed finish creates a really nice re working in depending the! To do is apply a new finish in this video I talk about &... Will always be some dust nibs with 1,500-grit sandpaper or a piece of furniture or other surface... Scratches and dings that would permanently damage a surface, dust-free and.! Adam has been woodworking for the last coat I put on powder after sanding disguises the area have. Nibs created by dust that settled in the finish hardens dust nibs in polyurethane you get all the of! Floor to reduce the thin ratio to 30pw-satin:70minspirits is clean, dust-free and lint-free shorter ) of separate! Layers with the fine-grit sandpaper - varnish, but still maintain its finish but we all know that….hopefully –. Finish technique – with shellac additional poly can be applied and made smooth again ' practices. T work well if the dust nibs if you are looking to achieve a high shine with automotive wax! Should denib finishes - varnish, and I apply a poly layer with sandpaper.... Or maybe you haven ’ t learned and perfected that technique precautions, you have to them. Simultaneously providing some Level of protection a lot of bubbles, for others, not much! Wipe it down is fine, white powder after sanding -- if not, allow it to longer! Finish feels rough and dust nibs haunt our fresh finishes on the furniture I m...
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