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can i use rubbing compound on polyurethane

by Jett Thiel Published 3 years ago Updated 3 years ago

Yes, a rubbing compound may be used on polyurethane if compatible. Being a mild abrasive it will tackle small scratches and marks by smoothing them out. Can You Wax Over Polyurethane? Yes, you can wax over polyurethane to cover small blemishes and give the top coat a nice luster making the wood pop.

Dampen a clean, cotton cloth with water and apply automotive rubbing compound to the surface in a circular motion. Note: The compound has a fine abrasive that'll remove any scratches left by the 400-grit sandpaper and restore the luster in the polyurethane finish.Feb 18, 2022

Full Answer

How to buff polyurethane?

How to Buff Polyurethane – Step By Step 1 Sand the Surface. Take the fine-grit sandpaper and wrap it around the block of styrofoam. ... 2 Clean Off the Surface. When satisfied, use a lint-free cloth to wipe away any powder from scraping the surface. ... 3 Begin Buffing. ... More items...

How do you Polish polyurethane?

Small areas will have to be polished by hand unless you have some funky buffing tools. Make sure the poly has cured for a minimum of 4-5 days at 70f. Do not try to polish an uncured film. Start gently, sand all the imperfections (wet 1000g) and then clean the surface well.

Can you use a brush to apply polyurethane?

This is especially true if you’re working in a home shop and you’re applying a polyurethane finish with a brush. I want to show you a technique here that will allow you to produce glass-smooth finishes without spray equipment, just using an ordinary brush and polyurethane finish.

Can you use polyurethane on wood?

Learn how to prep the wood surface and successfully apply a flawless finish with these detailed steps. We use an oil-based polyurethane finish in this story, though you can also use water-based urethane finishes with great results. But the color and depth you get are no match for oil-based urethanes.

What can I use to buff polyurethane?

Add a pea-sized amount of car paste wax to a polishing pad or cloth. Work in short, smooth motions until there are no visible scratches in the polyurethane. Move the pad in smooth, horizontal motions so you can apply an even coat of wax to the surface. You can also use a section of 0000 steel wool to buff the surface.

How do you polish the final coat of polyurethane?

Apply only one thin coat. Then, remove any dust nibs with 1,500-grit sandpaper or a piece of brown paper bag. 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.

How do you smooth out a polyurethane finish?

Like I said, use a piece of old 240-grit sandpaper left over from the sanding you did between coats of urethane. After just a few strokes you'll find that the surface feels noticeably smoother right after de-bumping, though the sheen will be irregular to the eye.

Can you buff out polyurethane?

0:325:47How to Rub Out Your Polyurethane Finish - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo a few items that you need to do this process is some sandpaper I'm gonna be using 1000 grit butMoreSo a few items that you need to do this process is some sandpaper I'm gonna be using 1000 grit but you guys can use anywhere between four six hundred you guys could even use twelve hundred if you

Can you buff out brush strokes in polyurethane?

*How Do I Remove Brush Strokes from the 3rd Coat of High Performance Polyurethane? Sand down the final finish with a 220-grit foam sanding pad, and then add another layer of General Finishes High Performance PolyurethaneTopcoat. Apply liberally than you did previously without heavy back-brushing.

How do I get a smooth finish with water-based polyurethane?

First use a degreaser cleaner like Formula 409 or Fantastik to clean away any buildup of grease or cooking oil. Scuff-sand the old finish with fine synthetic wool, then seal with Zinsser SealCoat. Sand the seal coat with fine synthetic wool, then brush on two to three coats of water-based poly to complete the job.

Why does my polyurethane feel rough?

Sounds like the poly might have picked up some dust. Try "sanding" its surface with a piece of kraft paper (for example, a piece of a brown paper bag), which is just abrasive enough to polish the surface.

How long should polyurethane CURE before buffing?

Small areas will have to be polished by hand unless you have some funky buffing tools. Make sure the poly has cured for a minimum of 4-5 days at 70f. Do not try to polish an uncured film. Start gently, sand all the imperfections (wet 1000g) and then clean the surface well.

How long does it take for urethane to dry?

Sand lightly with 240-grit sandpaper between coats, then let the last coat dry for at least 24 hours. This is standard practice with any wood finishing job, and is nothing out of the ordinary.

Can steel wool be put on wood?

Finish up with a coat of paste wax, also buffed out under power, and you’ll have the smoothest possible finish that can be put on wood. You won’t be able to resist running your hand over it.

Can you buff a coffee table with 320 grit paper?

You don’t know how thick the existing finish is, so take it easy. As for your coffee table, yes, it’s definitely a candidate for buffing, even now. Use the 320-grit paper on a foam block to knock off the dust bumps, the go at it with a “fine” 3M rubbing pad.

Is water based urethane harder to apply than oil based urethane?

The dirty little secret of the wood finishing world is that waterbased urethane is significantly harder to apply well than its oil-based ancestor. Buffing really does make it easy to get superb results on wood finished with polyurethane. That’s what you’ll learn about here.

Why use rubbing compound?

It is essential when you know how to use a rubbing compound because your expertise will determine the result you will get. The product is a thick paste texture that consists of a suspended abrasive compound that is utilized for surface polishing to take care of mild dents and scratches and also to keep the vehicle’s body qualities from getting dull.

What is the difference between a polishing compound and a rubbing compound?

Typically, a polishing compound rubbing compound has less abrasion that is why it is often used if you need to enhance the paint finish of your car while improving the shine.

What to use to remove scratches on car?

Find out the non-deep blemishes that give you sleepless nights. With the help of the rubbing compound, you will be able to eliminate the light scratches to take back the shine and beauty of your car. Meanwhile, you will need a synthetic (microfiber) cloth with a large amount of elbow grease.

Can you use a machine to apply rubbing compound?

When it comes to other deep dents and scratches, using a machine will be needed to apply the chemicals. However, if the job is not too severe and you’ve got no access to a machine, you can make use of hand applications.

Is rubbing compound safe?

Although applying rubbing compound by hand is by far the hardest way to use the tool, it is by no means one of the safest and most effective methods. Naturally, rubbing compound is known as high grit sandpaper.

How to seal oil based polyurethane?

Pro tip: Pour the products into a glass jar and gently stir the mixture with a flat stir stick. Brush the sealer on with a natural-bristle brush using long, even strokes. Be sure to catch any runs.

How long does it take to apply polyurethane?

Apply the First Coat of Polyurethane. Within 24 hours of applying the seal coat, brush on a coat of finish right from the can. Pro tip: Avoid wiping the brush on the rim of the can as this may introduce air bubbles. Spread the varnish over the entire surface with long, even strokes.

What grit to use for sanding?

Sand your project with progressively finer grits of sandpaper.#N#Note: Paper with a higher grit number removes the deeper scratches left by paper with a lower-numbered grit.#N#Pro tip: Most projects need an initial sanding with medium sandpaper (100-grit) followed by a fine paper (150-grit) and then an extra-fine sanding with 220-grit.

How to use a brush to paint wood?

Load your brush by dipping it about 1 in. into the mixture and brush the wood with long, even strokes from end to end. Keep a wet edge by overlapping each pass until the surface is completely coated. Catch any drips with your brush and smooth them into the surface. Step 4.

How to remove blemishes from a coat of paint?

After the first coat has dried for 24 hours, remove small blemishes by wet-sanding with 400-grit sandpaper mounted to a sanding block. Dip the sandpaper in water and use circular strokes to remove the blemishes and any dust bumps.

How to get a blemish out of a sandpaper?

Pro tip: Use enough water to lubricate the sandpaper so you won’t burn through the delicate finish. Sand just deep enough to remove the blemish. When the surface feels smooth, wipe it with a moist cloth and then dry it with a clean, dust-free cloth.

How long to wait to polish a second coat of paint?

Polish the Surface if You Wet-Sanded the Second Coat. Wait at least 48 hours, then polish the finish using an automotive rubbing compound. Dampen a clean, cotton cloth with water and apply automotive rubbing compound to the surface in a circular motion.

How to polish uncured film?

Do not try to polish an uncured film. Start gently, sand all the imperfections (wet 1000g) and then clean the surface well. Use a fine cut cleaner by McGuire's or 3M and follow the instructions on the bottle. Clean all residue when done with a damp cloth. Repeat the polish process with a swirl mark remover.

Is Mequires polish good?

Mequires is good. But their products are too mild. And they are made to break down as you use them because they want to help you to avoid rub-throughs. I avoid rub-throughs by having years of polishing experience, not by a product designed to hold my hand and stymie me.

What is satin rub?

The goal of a satin rub is to leave a very uniform scratch pattern going in the direction of the grain, which will refract light evenly.

Why do you rubbed gloss?

Rubbing lets you quickly remove any dust nibs, surface and brush marks or sheen anomalies. The second reason is overall appearance. Rubbed gloss simply looks different than off the brush or off the gun gloss, and satin does as well.

How to make a gloss finish flat?

Sand the cured, gloss finish aggressively to make it absolutely flat. Start with 600 or 800 grit self lubricating paper and continue through the grits to 1200 or finer. Use mineral spirits or soapy water as a lubricant if you use wet and dry paper instead of self lubricating paper.

Can you rub satin up to matte?

However, you can rub satin up to semi-gloss, matte up to satin, or rub any finish to a lower sheen.

Can you use satin finish on gloss?

Apply enough coats of satin finish you will see a slight loss of clarity in the build. For that reason, it is often wiser to build up a thick finishes in gloss, which has better clarity. You can then switch to satin for the last couple of coats, if that’s the sheen you prefer, or simply rub the gloss down to satin.

Does rubbing change sheen?

Changing Sheen. While not one of the primary reasons, one function of rubbing is to change the sheen of a finish. However, there are limitations to that because of the way satin finishes are formulated. Finishes typically start out gloss, and are made semi-gloss, satin or matte with the addition of something called flatting agent, ...

Can you rub out wood film forming?

The final step to a great finish on your next woodworking project. You can rub out all types of film forming finishes, including shellac, lacquer, oil based varnish and polyurethane, waterbased coatings and catalyzed or conversion coatings. There are three strong reasons for doing so. The first is simply practical;

How to polish a 3 square foot piece?

Work a roughly 3-square-foot area until the polish thins and dries. Press lightly and polish a workpiece section of about 3 square feet in overlapping circles, photo below. Go easy at edges and corners. Polish these areas just enough to reach the desired sheen, then stop before you polish through the finish.

Why is a rubbed finish pockmarked?

For example, a porous wood, such as red oak, looks pockmarked because the pores don't fill with finish. To prevent that, always seal porous woods with a coat of the finish you'll use for your topcoat.

How to keep a sanded piece from shifting?

Place your sanded and cleaned work piece on a non-skid mat to keep it from shifting as you polish. Then center and attach a yellow buffing pad (Sources) to the hook-and-loop pad of your random-orbit sander.

How to tell if satin finish has cured?

On anything less, you'll only smear the finish instead of polishing it. To tell when a finish has cured, sniff it. If you smell solvents, it needs more curing time. Before it was rubbed out, the satin finish (top photo, above) blurred objects and highlighted surface flaws.

Can you wipe off polishing compound?

Polishing compound dries to a powder you can easily wipe off the surface with a soft cloth, such as an old cotton T-shirt. After wiping the surface with a clean, soft cloth, add shine and remove the polishing compound residue by wiping on an automotive cleaner and polish. (See Sources .) Sources. Pore filler.

Do thick coats of paint protect against sanding?

Brush on each coat as evenly as possible close to the edges to avoid sanding or rubbing through the finish there. However, avoid applying extra-heavy coats. Yes, thick coats protect against sand-through, but they also drip and sag more than moderate coats. And a heavy finish takes longer to cure.

Can you rub out polyurethane?

You can rub out nearly any film finish, including polyurethane, lacquer, and shellac. With the latter two, each topcoat bonds with the one beneath it to form one single layer. With poly, though, you'll want to apply a full-strength final coat to avoid cutting through to the layer below.

What to use to polish a bathtub?

Any kind of spray or gel formulated for cleaning bathtubs or bathrooms, in general, will work. Alternatively, you can just use a mild detergent, such as dish soap, to clean the tub.

How to restore a bathtub that has been scratched?

If your bathtub has lost its luster and become scratched and dull from wear and tear or use of abrasive cleaners, you can restore it to its original glossy finish with a simple application of a liquid polishing compound.

Can you polish a wet tub?

You should never attempt to polish a wet surface. Once you've got the tub clean, dry the surface as much as you can with a towel then leave it to air-dry. Wrap plastic bags around the fixtures, the shower head and tub faucet to prevent drips.

Can you use wax on a shower wall?

If you have a shower-tub combo unit, you can use automotive wax to buff out scratches on the shower wall — though you should never use this on the tub floor. Follow the instructions on the packaging of your polishing compound ...

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