Download Article Show Download Article Oil and water are famous for repelling one another and not mixing. Luckily, there are ways around this when it comes to applying finishes. If you already laid down a water-based finish and decided to go for an oil-based one, do not fret. With a little bit of extra time and preparation, you can apply the oil-based finish right over the water-based one.
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About This ArticleThanks to all authors for creating a page that has been read 61,228 times. Did this article help you?Can you put water based finish over oil based finish?ANSWER: Yes! but the underlying finish has to be absolutely dry. When using a water based topcoat over an oil based stain, allow oil based finishes, such as Java Gel Stain, to dry at least 72 hours before coating with a water based topcoat.
What happens if you put water based Poly over oil based stain?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. After the shellac dries, a light scuff-sand will leave an excellent surface for the poly to grip.
Can you use both water based and oil based polyurethane?Yes! But you must follow ONE simple rule to ensure the best possible finish: the underlying finish must be absolutely dry. When using a water-based product over an oil-based product, such as water-based High Performance Topcoat over oil-based Gel Stain, wait 72 hours before applying the water-based product.
What is the main disadvantage of using waterCons of Water-Based Polyurethane
Expensive cost. Requires more coats. Scratches easier due to it hardness.
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