Yes, you can apply water-based polyurethane over oil-based polyurethane. Given that both bases accomplish the same task, using one on top of the other is not a problem, whether for a refinishing job or a new project.
Can you apply a water-based polyurethane over oil-based stain?
Can You Use Water-based Polyurethane over Oil-based Stain? Yes, you can apply water-based polyurethane over oil-based stain. You may be thinking, “But oil and water don’t mix,” and you’ll be right. You won’t be mixing them, you’d just be applying the polyurethane over the stain.
What happens if you put water-based Poly over oil-based stain?
Oil and water don’t mix. Water-based poly can have adhesion problems when applied over an oil-based stain that’s not thoroughly cured. That’s why you should always apply a barrier coat of dewaxed shellac to seal oil-based stain.
Can you put polyurethane over oiled wood?
In short, you CAN apply a lacquer or a polyurethane over a Danish oil. Just as you can over any Drying Oil. The key to success is to make sure the oil has fully dried first. This should make sense, because once dried, the oil has cured to a hard solid film surface, and stuff will now stick to it.
Can you use Minwax water based polyurethane over oil-based stain?
Water Based Oil-Modified Polyurethane is ideal for use on all interior bare or stained wood surfaces including furniture, cabinets, doors and floors. It can be applied over oil-based stains like Minwax® Wood Finish™ or Minwax® Gel Stain.
What is better oil based or water based polyurethane?
Oil based used to be unquestionably more durable. Today though, water based polyurethane has evolved with better formulations that are equally durable as oil based polyurethane. High quality water based polyurethanes is considered by many homeowners &, flooring professionals to be equally durable.
Can I use water based Poly over Danish oil?
Yes, you can put a water-based polyurethane coat over Danish Oil. It will adhere to the finish as long as the Danish oil coat is fully cured.
Can I use water based polyurethane over linseed oil?
What is this? Water-based polyurethane paints dry quickly, so you should have no problem applying them over Boiled Linseed Oil. As you may already know, polyurethane is one pretty tough finish that provides many excellent benefits to woodworkers when appropriately used.
Does water-based polyurethane protect against water?
Is Water-based Polyurethane Waterproof? No, water-based polyurethane is not waterproof, but it is water-resistant. Applying multiple layers of water-based poly on wood makes it durable and more resilient against water, molds, and fungi. The protective coat of water-based poly is also resistant to abrasion.
What is the downside of oil based polyurethane?
Cons of Oil-Based Polyurethane
Longer dry times. Dents easier due to it softer finish. The odor is unbearable (respirator use is recommended). The floor darkens over time.
Does oil based polyurethane dry clear?
Minwax® Fast-Drying Polyurethane is a clear, oil-based, durable protective finish. Provides long-lasting beauty and protection to any interior wood surface. Among the most durable coatings for wood protection. Ideal for woodwork, furniture, doors, cabinets and floors.
Does water based polyurethane darken wood?
An oil based polyurethane will continue to amber and darken over time, while water based poly will remain clear for the lifetime of the hardwood floor. This color difference is less noticeable over a stained hardwood floor, but an oil based poly will still exhibit an amber hue that will continue to darken over time.
What kind of finish can you put over Danish oil?
Because Danish oil doesn’t build like a film finish, stick with poly or choose lacquer (discussed later) for surfaces that may be exposed to liquids, wear, or abrasion.
Can I put polyurethane over tung oil?
Our Experts Weigh In. Woodworking Expert – Michael Dresdner: “Yes, I would put a coat or two of oil-based polyurethane on for more durability, and it is fully compatible over the dried tung oil (or linseed oil, or any other drying oil for that matter.)
Is there a water-based polyurethane?
Provides a clear finish with low odor. If you love the natural look of maple, apply a water-based (waterborne) polyurethane.
How do you apply polyurethane over linseed oil?
To apply water-based polyurethane over linseed oil, it’s advised to apply a thin coat of oil-based primer on the linseed oil first. This is to make the water-based polyurethane stick better. You should ensure to use an oil-based primer that is also compatible with water-based polyurethane.
Can you mix linseed oil with polyurethane?
Make your own oil/poly blend with boiled linseed oil, polyurethane and mineral spirits. This finishing technique is great for all woodworking projects and brings out the natural beauty in wood.
What is better lacquer or polyurethane?
Despite being available in variances, polyurethane is more durable. It is thick and leaves a strong coating. Lacquer is thin and penetrates the wood surface. It is also durable but susceptible to scratches and discoloration after some time.
Is water based polyurethane waterproof when dry?
Water-based polyurethane is perfect for floors as it can be applied quickly and dries just as fast. It is also scratch and scuff-resistant, waterproof, and dries just as hard as oil-based poly.
What is the best way to apply water based polyurethane?
Applying a Water-Based Polyurethane
Apply a very thin coat of polyurethane with a fine brush, foam pad, or cloth. Work with the grain, and avoid applying too much polyurethane to avoid raising the grain. The initial coat should be dry within a couple of hours, and you can then apply a second coat.
How long does it take for oil based polyurethane to dry?
Oil-based polyurethane dry time is about 4 hours for fast drying formulae. But some polyurethane finishes might dry within 24-48 hours. As for curing, you need 30 days to cure properly. The surface is ready for use after 4 days or more.
What lasts longer oil or water based polyurethane?
Oil based polyurethane lasts longer than water based.
Water based polyurethane has lower VOC’s – which is a bit of an environmental benefit (more about that in a moment) – but because it has lower VOC’s (Volatile Organic Compounds), it doesn’t last as long.
What happens if I don’t sand between coats of polyurethane?
For some types of poly, nothing happens if you don’t sand between coats of polyurethane. However, most polyurethane will not adhere properly if you skip sanding dust nibs and brush marks on the finish. The polyurethane finish will eventually peel off or become deformed.
How long should water-based polyurethane dry between coats?
Allow product to dry a minimum of 1-2 hours between coats. Sanding between coats is not required for adhesion as long as the time between coats is less than 6 hours. However, screening or sanding between coats usually produces a smoother better looking finish. A minimum of 3 coats of finish are recommended.
How long should you wait between coats of polyurethane?
If you use water-based polyurethane, you only have to wait between 2 to 4 hours before applying the next coat. However, when using oil-based polyurethane, you might wait for 10 to 24 hours. You can apply the next coat in as little as 4 hours if you are using fast-drying, oil-based polyurethane.
Is water based polyurethane clear?
A well-engineered, water based polyurethane will be equal in clarity to oil-based polyurethane. The main difference is usually color: water based polyurethanes are completely clear and (again, if well engineered) will not yellow over time. This is ideal if you want the natural color of your wood to remain constant.
Does oil based polyurethane turn yellow?
Oil based polyurethanes turn the floors yellow…and over time, they become more yellow…and sometimes even a bit orangish. It’s the UV rays from the sun that turn them a darker yellow or amber and the more they are exposed over time, the yellower they get. This holds true for viirtually all species.
Can you put water-based polyurethane over varnish?
Yes, you can polyurethane over varnish without damaging the finish. This is so because it’s hard-wearing, long-lasting and durable, and with a high resin value, which allows it to resist harsh outdoor conditions.
Can I put Polycrylic over tung oil?
re: Polycrylic over Tung Oil
DON’T DO IT! I’m not sure I understand your question- if you’re asking if it’s alright to put polycrylic on top of a pre-existing tung oil finish, the answer is no. Tung oil is a lipid-based finish, the polycrylic is water-based. You’ll be setting yourself up for a disaster.
How do I get a high gloss finish with tung oil?
I rub thoroughly between coats with 0000 steel wool when looking for high gloss. I have done up to 8 coats on a piece. The last couple of coats may be thinned with mineral spirits. You could also wax polish on top of the tung oil to achieve the sheen you want.
What is the difference between tung oil and polyurethane?
Polyurethane dries faster than tung oil and takes only 12 hours to cure. Polyurethane sits on top of the wood to form a protective barrier that is watertight in only two coats. When considering tung oil versus polyurethane for wood floors, polyurethane wins the contest every time.
Is water-based polyurethane safe?
Yes, water-based polyurethane is toxic. But it’s slightly less toxic than oil-based polyurethane. This is because the chemical used to make water-based polyurethane contains fewer quantities of compounds containing VOCs (volatile organic compounds). So water-based polyurethane side effects aren’t as harsh as oil.