I applied the 2nd coat of satin poly (Minwax Super Fast Drying Polyurethane for Floors) and the floor feels mostly smooth except for some "rough" spots.I can see dust bubbles but those areas FEEL smooth - which I can live with. Keep in mind that it may take several passes with different types of grit. If you are going to do that you might as well use a gloss finish. How to Apply polyurethane and avoid Bubbles in the Dried Polyurethane. Level 1 (Contributor) 2 Answers: 0. ryanmc.75. How Many Coats of Water-Based Polyurethane Apply on Kitchen Table: The standard application process is similar to the oil-based polyurethane. Between coats of stain I used grade 0 steel wool. You can use oil-based polyurethane so that it levels into a smoother finish. Do not sand the last coat of polyurethane varnish. Yes, you can apply polyurethane over paint. however, this can take several hours to dry. Polyurethane brings out the natural beauty of the wood grain. If you put polyurethane on a rough surface you will get a rough finish. After the first coat, all you are trying to do is remove the bumps and scuff the surface for the next coat, so 220 is just too rough. Polyurethane is one of the hardest protective finishes for wood furniture that the average do-it-yourselfer can successfully apply. Minimize this problem by applying thinner coats or by switching from standard brush-on poly to a wipe-on or spray finish, both of which can be applied in very thin coats. You make sure you either spray it, or lay it on nice and even. Heating, dropping rocks and chiseling the wood. Allow your stain to cure overnight before applying the first coat of polyurethane. You want to find a nice place where the polyurethane can dry slowly. With oil based polyurethane, I will typically bring my furniture project into the house after 7 days. How Do You Smooth the Final Coat of Polyurethane. By applying it to a table, you’ll create a clear finish that will protect and preserve the wood. Synthetic steel wool will help you to make the surface “rough up.” It will block the polyurethane form edging on the wooden surface. How many coats of polyurethane on stair treads is best? This is a perfect way to showcase your table’s woodwork, and you can do it on your own. After sanding (fine grit sandpaper or 0000 steel wool), wipe off the dust with a rag soaked in mineral spirits, then apply the final coat in a dust-free environment so that … Floor rough after 2 coats of water-based polyurethane Q imported from our old site, Face Lift Floors: We have sanded and stained our oak wood floors. It is harder, more durable and … Read Also: Staining Wood Dark – 7 Tips to Get Darker & Richer Finish. 2nd Coat dried rough and grainy looking. You will want to apply about one or two coats to the surface that’s painted as this is a good way to protect the paint. Step Four: Apply Two Undiluted Coats of Polyurethane. So it can be frustrating having to sit around twiddling your thumbs whilst you wait for those poly layers to dry in-between coats. How many coats of polyurethane shoudl i put on my floor? A heavy grit sandpaper should be used first to really rough up the surface and get off as much of the polyurethane as possible. ... 59% - Why does the stain feel rough after final coat? For the final application of polyurethane, sand the piece with wet and dry paper. How do I apply a second coat of polyurethane? However, it dries too fast for all the little laps and strokes to flow and level themselves on a top large enough for dining. Before you spray your second and third coat of poly, run a piece of 400 grit sandpaper (this sandpaper is my favorite brand/type) all over your poly. Allow it to harden and then apply paste wax or another protective furniture wax product. I prefer the 320 grit between coats. A clear coat of polyurethane is a great way to protect a stain finished work craft from fading fast. Use a clean foam brush to apply the polyurethane coating. Sand the previous coats to make sure there is a perfectly flat and even base for the final coat. Polyurethane is like a liquid plastic, often either a pure synthetic plastic or a blend with resin. A slightly damp cloth can help pick up anything remaining (but make sure the wood is dry before you apply). So in a nutshell, plan on 1 day to dry between coats, and plan on 30 days to fully cure. Now that said, if I happen to scuff through my first thin coat of Oil Modified Polyurethane, that’s not a problem for me, as I am using the same finish for all three coats. Try to get the "non-filling" type, like the waterproof or aluminium oxide. First Coat. A flawless surface is elusive. We did not sand between 1st and second coat. Apply a new coat of polyurethane over the area you sanded. Spread the varnish over the entire surface with long, even strokes. If you did extensive sanding, you might have to re-coat the entire wood surface with polyurethane. Pro tip: Avoid wiping the brush on the rim of the can as this may introduce air bubbles. Furthermore, do you sand after last coat of polyurethane? Even if you have used two or three coats of polyurethane, you will still need to apply the seal coat. It forms a protective finish that is as hard as glass. If you wait for each coat to dry properly, you don’t need to … If the sanding was minimal, you … Having the smooth final coat of the polyurethane … Clean your work surface – Polyurethane accentuates all the features of your surface – including the inconsistencies. Sanding the final coat will leave you to have a dull and rusty looking coat on the table. I used a minwax pretreatment for the wood before staining as well. Make Your Polyurethane Finish Thick Enough. Polyurethane. But, if you desire to have a matt looking coat, then you might try to sand a little bit to obtain the perfect matt look. For the final coat, if I really want a smooth coat, I will use a spray can, just for the last coat. If the polyurethane dries too fast, it can result in those textured bumps and it can make the poly feel rough. When applying polyurethane on vertical surfaces, you may experience drips or runs. 2nd Coat of polyurethane rough and grainy Q: We sanded, stained and oil based polyurethaned a wood floor with 2 coats. We have put on 2 coats of water-based polyurethane. Stained door feels rough after a coat of polyurethane. From memory, the directions I always see on cans of poly is to sand between coats, not to sand after a final coat. It is rough to the touch now and I am trying to get it to be as smooth as possible. Whether your polyurethane finishes are water- or solvent-based, this process will leave you with a high-gloss finish. 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