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THICKNESS AND HARDNESS: Oil based poly is a thicker poly, but it is also softer. Water-based poly, an acrylic product, is a thinner, but harder coating. Oil poly can be more susceptible to dents, while water-based poly can be more susceptible to surface scratching.
Which is better oil or water based polyurethane?
1. Oil based polyurethane looks better. It has a more depth – both in color and shine and it looks the way we expect hardwood to look. Water based polyurethane has both a duller color and a duller finish.
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.
Is oil based polyurethane more durable than water based?
High quality water based polyurethanes is considered by many homeowners & flooring professionals to be equally durable. Oil based poly can last around 10 years. Water based poly can have the same longevity.
Is water based polyurethane any good?
Water-based and oil-based polyurethane each offer good protection; the biggest difference is in appearance. Polyurethane is actually the most durable hardwood floor finish. There’s debate over which finish is harder, but some experts maintain that hardness isn’t necessarily a good attribute of a floor finish.
Can I put water based Poly over oil based poly?
Answer: In most cases, it is OK to use a water-based polyurethane over an oil-based finish in good condition. You should remove grease, dirt and wax by scrubbing the surface with a wood prep/cleaner/de-glosser, or mineral spirits and synthetic steel wool.
What is the hardest polyurethane finish?
Moisture-cured urethane is considered one of the hardest finishes available, but also has one of the highest VOC’s. Because it dries so fast, it’s difficult to apply, so it’s not recommended for DIY’ers.
Which is better water based or oil based stain?
If the wood is going to be in direct exposure to wind, rain, and sunlight, an oil-based stain is the best choice. This is because it is more durable than a water-base and will provide a more complete protective layer against these elements.
Does water based polyurethane make wood waterproof?
No, polyurethane does not make hardwood waterproof, but it does make wood water resistant. Polyurethane gives hardwood its protection. It repels water and prevents water absorption, but it never fully blocks it so it will never make it 100% waterproof. Polyurethane also protects wood for scratches and discoloration.
Does oil based polyurethane yellow over time?
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.
Does oil 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 polyurethane is waterproof?
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.
How long does oil based polyurethane last?
Gloss oil-based varnish, polyurethane and Danish oil can last 10 or 20 years, though satin finishes and stains may fail sooner as pigments and flattening agents disable the driers. Water-based coatings and paints can also be viable longer than three years. Shellac, though, can go bad in under a year.
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.
What is oil based polyurethane used for?
Oil-based polyurethane coatings provide excellent abrasion and scratch resistance. This makes them a good choice for wood floors or for any application such as cabinets, railings, or countertops where durability is critical. Oil-based polyurethane coatings achieve a rich, golden glow in few coats.
Do you need to sand between coats of water based polyurethane?
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. Sand between coats with 120-150 grit sandpaper or maroon abrasive pad.
How do you keep brush marks from water based polyurethane?
How to Avoid Brush Marks in Polyurethane Use a foam brush or a lambswool applicator instead of a brush. Use a natural-bristle brush rather than a synthetic one if you are using a bristle brush. Thin your polyurethane with paint thinner, mixing it with a paint stir stick.
How do you apply oil based polyurethane?
Seal the Surface Thin your oil-based polyurethane with two parts polyurethane and one part mineral spirits. Brush the sealer on with a natural-bristle brush using long, even strokes. Load your brush by dipping it about 1 in. Keep a wet edge by overlapping each pass until the surface is completely coated.
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.
