Can I Put Water Based Polyurethane Over Oil Based Polyurethane

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Products like parks water based polyurethane for floors can be applied over oil based poly. You can apply polyurethane over any type of paint as long as its clean and has been properly prepared.

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Can I Put Water Based Polyurethane Over Oil Based Woodworking

Can Water Based Polyurethane Be Applied Over Oil Based

Use 220 grit sandpaper and sand enough to dull the existing gloss but not enough to impact the stained color of the wood.

Can i put water based polyurethane over oil based polyurethane. Youll have to lightly buff the old finish with a power buffer to prepare it for the new polyurethane. You should never put a water based finish on top of an oil based finish. Use a water based product if youre concerned about color because it wont yellow as much as an oil based one.

However you must buff sand the entire floor to break the existing gloss and completely remove the sanding dust before application. 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 curedgenerally 30 to 60 days. If you already laid down a water based finish and decided to go for an oil based one do not fret.

Theyre also a bit thicker and contain more solids requiring two or three coats where water based poly may need three or four. A great finish to try is zar brand ultra max a waterborne oil modified polyurethane. Oil based polyurethanes are somewhat easier to apply and can be less temperamental than water based formulas.

Rent a power buffer and buy a fine 150 grit screen. With a little bit of extra time and preparation you can apply the oil based finish right over the water based one. Some of these water based finishes are not for use over lacquer or shellac.

Spray lacquer is commonly used on new furniture and in new construction. Jim carroll explains why its 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. Oil based polyurethane levels out to a smoother finish although it takes several hours longer to dry.

The decision to use an oil based or water based polyurethane largely depends on your project and your preferences.

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