Many people don’t comprehend that polyurethane-treated surfaces might be painted, chiefly since it wouldn’t arise to finish with polyurethane then paint. Whilst furniture or other wood products come pretreated with polyurethane, and you want to paint them, you don’t have much of a choice. In the sort of case, what sort of paint will persist with polyurethane?
Nearly any kind of paint will persist with polyurethane as long as the wood is sanded and primed properly. Oil paints provide durability at the price of strong fumes, whilst acrylic is slightly more fragile yet lacks powerful smells. Items like Oil Bond can sand and top at the same time.
In this article, I’ll talk about polyurethane, what paints work on it, and some different applicable information that may interest you.
What Is Polyurethane?
Polyurethane is basically a type of liquid plastic used as a topcoat commonly applied to wood flooring and furniture.
When applied to wood or one more material, it dries into a clear, shiny, and durable clean coat. This protects the surface from harm from scratches, scuffs, impacts, and other damages. The cloth is available in oil-based and water-based variants, with varying degrees of luster.
Can You Paint Over Polyurethane?
You can paint over polyurethane, but there are some caveats to bear in mind while you want to do so.
Firstly, it becomes essential to sand the area, much more so than when freshly portray it. Paint doesn’t follow glossy and unsanded polyurethane alright in any respect and will in all likelihood peel off if applied with out earlier sanding.
Another attention is primer. Paint might not follow even well-sanded polyurethane surfaces, which is wherein primer comes in.
Primer is reminiscent of paint yet serves the purpose of making ready the surface for painting. Some items like Oil Bond from Amazon serve the dual goal of ‘sanding’ and priming the surface.
What Sort of Paint Will Persist with Polyurethane?
Nearly any paint will follow polyurethane-treated surfaces, given the proper preparation. The surface ought to be both sanded or primed with a product that serves as a ‘liquid sander,’ as formerly mentioned.
Priming after sanding is right for giving your paint the best probabilities of adhering on your surface and staying there for an extended time.
Another lesser-known advantage of utilizing a primer earlier than painting is that stains in the wood won’t come during the paint. This can occur with some strongly-colored wooden stains.
Oil-based the teeth is characteristically used whilst you desire your surface to remain durable devoid of compromising the protecting traits of the polyurethane finish, however it produces unpleasant fumes.
Acrylic paints produce comparable leads to a far faster time frame, whether it’s slightly much less durable. The other professional of acrylic paint over oil-based paint is that acrylic doesn’t scent as strongly.
If you’re no longer sure what sort of paint to use, you could inspect this article on different types of paint.
How to Paint Over Polyurethane
Painting over polyurethane conclude doesn’t must be difficult or demanding and will be fairly simple if you follow some easy education and steps.
1. Clean the Surface
Cleaning the polyurethane-treated floor you wish to paint is perhaps the biggest step.
Using mineral spirits, wipe a humid cloth throughout the total floor place of your wooden piece. This would help to remove dirt, dust, grime, and different undesirable muck out of your wood.
Don’t rush this step, even if you’re impatient to get painting: rushed cleaning will be evident when you paint and the paint isn’t adhering well.
Use a separate dry cloth to wipe dry debris from the wood surface, being extra cautious to get the cracks and crevices around the edges.
2. Sand the Surface
Using nice sandpaper or a sander with fine-grade (200+ grit) sandpaper, cautiously sand away the surface of the smooth polyurethane floor layer.
You don’t desire to totally get rid of this sediment due to the fact which will eliminate its protecting benefits. Simply sand until the gloss is gone and the wooden appears ‘dull’ compared to before.
After sanding, clean with mineral spirits and another dry cloth. There will be loads of dust and debris, so be sure to get all of the nooks and crannies — edges, corners, and so on. If you’re using a liquid desanding product, feel free to dismiss this step.
3. Best and Paint the Surface
Using lengthy or even strokes, follow the primer to the surface of your wood. Choppy brush strokes can undermine the sturdiness of your efforts, leading to shoddy paint. Once your preliminary layer of paint is dry, gently sand choppy or splotchy areas and repaint, permitting it to fully dry.
See also: Wood Stain Vs. Varnish Vs. Paint
While polyurethane is a finish for wood, it’s flawlessly attainable to paint over it. Acrylic and oil-based paints are ideal for painting over polyurethane-treated wood.
To do so, the largest step is to scrub the surface with a moist cloth. Then use a fine-grade sandpaper to gloss the surface. Finally, observe the paint and primer with lengthy even strokes.