Can You Put Water Based Polyurethane Over Oil Based Polyurethane
Camila Farah
Jim carroll explains why it s not only acceptable to use a water based finish over and oil finish provided you do it correctly but that it can be the best solution when you want to bring out the natural character and color of the wood.
You should never put a water based finish on top of an oil based finish. You ll have to lightly buff the old finish with a power buffer to prepare it for the new polyurethane. Oil and water are famous for repelling one another and not mixing. You can also use mineral spirits.
Not only acceptable to use a water based finish over and oil finish â provided you do. Use 220 grit sandpaper and sand enough to dull the existing gloss but not enough to impact the stained color of the wood. Flooring wholesalers and veteran floor finishers agree that you can recoat water based poly with oil based as long as the original coating has completely cured generally 30 to 60 days. Can i apply water based polyurethane over an oil based stain.
To ensure the color fastness of minwax wood finish prior to applying minwax water based polyurethane. Ensure that you remove dirt grease and wax from the surface by scrubbing the surface using a wood cleaner or de glosser. Rent a power buffer and buy a fine 150 grit screen. This is because the curing process for oil is polymerisation and polymerised oil is akin to resin.
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A well engineered water based polyurethane will be equal in clarity to oil based polyurethane. Minwax water based polyurethane over minwax wood finish stains. Please use the following guidelines. However you must buff sand the entire floor to break the existing gloss and completely remove the sanding dust before application.Of course wait for each coat to dry before applying the next one. Never ever put a water based finish on top of an oil based finish. You can apply water based polyurethane over oil based as long as you set suitable conditions for this to happen effectively. Shellac works well because it binds to water based and oil based polyurethanes while keeping the two separated.
With a little bit of extra time and preparation you can apply the oil based finish right over the water. Products like parks water based polyurethane for floors can be applied over oil based poly. The main difference is usually color. You may apply the minwax water based polyurethane over a fully cured minwax wood finish stain oil based.
Can you put water based polyurethane over oil based polyurethane november 12 2018 by franco woodworking myth. Water based polyurethanes are completely clear and again if well engineered will not yellow over time. If you already laid down a water based finish and decided to go for an oil based one do not fret. If you wait for the oil based stain to properly dry cure it s no longer oily.
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