How do I apply polyurethane without getting bubbles? Is it better to apply with a sponge brush or a bristle brush? -Michael

Hi Michael,
I prefer a high quality bristle brush, though a sponge brush works pretty well and has the advantage of being disposable. Make sure the temperature of the project you are finishing, along with the can of finish itself, are within the range specified on the can, and that both have had adequate time to adjust to it.

Don’t shake the can. Instead, stir the finish slowly until it is mixed well. Whenever possible, apply the finish to horizontal rather than vertical surfaces to prevent runs.

Apply the polyurethane evenly and smoothly, overlapping your brush strokes to keep a wet edge, and don’t go back over the finished work once it has begun to dry. If you notice a bubble while the finish is still wet, try popping it with a pin.

Good luck with your project,


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Danny Lipford

Danny Lipford


Danny Lipford is a home improvement expert and television personality who started his remodeling business, Lipford Construction, at the age of 21 in Mobile, Alabama. He gained national recognition as the host of the nationally syndicated television show, Today's Homeowner with Danny Lipford, which started as a small cable show in Mobile. Danny's expertise in home improvement has also led him to be a contributor to popular magazines and websites and the go-to source for advice on everything related to the home. He has made over 200 national television appearances and served as the home improvement expert for CBS's The Early Show and The Weather Channel for over a decade. Danny is also the founder of 3 Echoes Content Studio,, and Checking In With Chelsea, a décor and lifestyle blog.

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