Polyurethane is a proper finishing formula because that different species of wooden structures. It provides protection to the surfaces, keeping them safe from impacts and also scratches. If girlfriend can use polyurethane well, that will offer your surface a beautiful glossy appearance. What if you have actually a surface ar with glossy paint, Can You placed Polyurethane end High Gloss Paint?

Yes, girlfriend can use a polyurethane finish to any type of paint or stain provided the painted surface is fully dry and also applied correctly. The paints incorporate different types of semigloss paints- latex, acrylic, and also oil-based.

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If you have a surface containing glossy paint and also looking to provide it a last finish, polyurethane have to be up there with various other finishes the you might take into consideration for this project. Ensure that you apply two thin coats of polyurethane, giving sufficient drying time between the coats.

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How carry out I obtain a High Gloss Polyurethane Finish?Conclusion

How to use Polyurethane end Paint

Overall, you require to use one or 2 layers that polyurethane come a painted surface ar if you room looking to offer it extra protection and beauty. If yellowing that polyurethane worries you then consider using water-based polyurethanes.

NOTE: Overall, Oil-based polyurethane evens the end to offer a smoother finish contrasted to the water-based one. Water-based polyurethane, top top the other hand, dries means faster 보다 the oil-based one.

Feel free to use polyurethane over any paint type. Also so, ensure the the painted surface ar is clean and also prepared adequately. Listed below are the crucial steps that you have to observe even as girlfriend look to polyurethane over your painted surface:


If you are looking come polyurethane end a fresh painted surface, you require to allow the repaint to cure first before using the poly finish. Various paints have different curing times, for this reason ensure the you check yours indigenous the manufacturer’s label. ~ above average, paints take about 7 days come cure.

Step One: Clean the Painted You desire to apply Polyurethane


If the surface was painted a while earlier and no fresh, you need to start by clean to eliminate grease or any type of imperfection utilizing a strong detergent solution. One such is trisodium phosphate, mix 1/2 cup that this compound v one gallon of heat water and use a rag to scrub the surface. The cleaning activity deglosses the finish and helps store it clean. A clean surface ar ensures a suitable adhesion between the surface and the formula.

Step Two: Scuffing the Cleaned Surface

Once you have cleaned the surface, let it dried then use 120-grit sandpaper to etch the surface. For this reason why is that? The idea here is to flatten the sheen slightly without necessarily leading to deep scratches that could end increase showing when your polyurethane complete cures. You have the right to use any an approach that works for you to scuff the surface. You have the right to use your hands or even wood sander. In case you are working ~ above a big area favor a wooden floor, it would certainly be best and also easy if you space using a floor buffer and a 120-grit sanding screen. Wipe the sanding dust away with a wet rag or tack cloth.

Step Three: choose Your technique of Application.

The best method to use both oil- or water-based polyurethane is by the usage of a brush or spray. Much as friend can apply this formula making use of a roller, I’d advise that you prevent using it. Rollers will certainly leave bubbles that cures through the polyurethane to provide a less impressive look.

For the finest result, avoid thinning the polyurethane before you spray. Usually, you will find the polyurethane thin sufficient for applications by spraying. Including thinner come the formula provides it run.

Step Four: use One layer the Sand Lightly

After using the an initial thin class of polyurethane, permit it come dry together per the manufacturer’s recommendation then usage 120-grit sandpaper come scuff that lightly. Scuffing helps v the remove of tiny dust particles. Additionally, the flattens any bubbles that might have developed in the finish.

Step Five: using the second Coat.

Usually, two coats that polyurethane are sufficient to carry out the job. More than that can not be crucial whatsoever. After using the second layer, permit it to dry together per the recommendation by the manufacturer. 24 hours is sufficient time, after i beg your pardon you deserve to walk over her surface. Ensure that you room walking top top the surface ar with clean bare feet.

Can I placed High Gloss Polyurethane end Semi-gloss?

Yes, girlfriend can. However, if the gloss is less than a job old, I’d advise that you execute a irradiate sanding come etch the surface so the the succeeding coat adheres. In case the surface ar is shiny, and also you don’t like it, you have the right to use a 4 chandelier (0000) stole wool to obstacle it down. Rubbing down helps eliminate the shine there is no leaving scratches ~ above the surface. 

NOTE: Rubbing under is very different from sanding, and also you must not confused the two or take into consideration sanding together an alternative. If you intended to apply one more coat, allow the first one come dry, sand lightly, then use the second coat.

How perform I acquire a High Gloss Polyurethane Finish?

If you are looking to accomplish a high gloss polyurethane finish, apply only one slim coat. Follow the by removing any kind of dust nibs indigenous the surface ar using 1,500-grit sandpaper or a brown paper bag. Conclude through a sprucing up pad. Usage the pad to buff the complete to a high shine with automotive dough wax.

Watch the video clip below on just how to apply polyurethane:

What form of Paint have the right to You Appy end a Polyurethane cure Surface?

You have the right to use any paint ~ above a polyurethane treated surface detailed the surface is pretreated and also ready to expropriate the paint. Paints do not stick appropriately to a poorly prepared polyurethane surface.

Here space the different varieties of paints and also polyurethane surface they finest fit:

Acrylic Latex Paint

Acrylic latex paint is the perfect formula because that primed exterior polyurethane treated structures that do not encounter good duress such together foot traffic.

Oil-based Enamel Paint

Oil-based enamels space the finest if friend are looking for polyurethane treated surfaces that will suffer a lot of duress and also increased traffic levels.


I’d know when you want to give your high gloss painted surfaces a various finish as soon as it will a point. It can be since you want to shot something new or provide your surface-enhanced protection and also beauty. There space so numerous finished the end there in the sector that girlfriend can apply over your painted surface, what if you are thinking of using a poly finish?Can You put Polyurethane end High Gloss Paint?

Yes, the is it s okay to use polyurethane over every kinds the paints. It would be finest if you undertook the procedural viewpoints highlighted earlier in this post to ensure that you get the finest finish possible. Ensure you sand your surface ar slightly prior to application. Also, stop rollers to minimize the possibility of bubbling.

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I hope you uncovered this write-up helpful if you have a inquiry or opinion regarding the topic, you re welcome drop it in the comment section below.