Bob Vila Radio: Brush Up Your Paint Technique to Avoid This Problem

Save yourself from the trouble of having to fix a botched paint job. Follow these tips to avoid this common issue—blistering paint—and have a final product that you'll love.

By Bob Vila | Updated Nov 28, 2018 6:34 PM

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How can you avoid those bothersome blisters that sometimes appear on painted surfaces? Here are some pointers:

Blistering Paint



Listen to BOB VILA ON BLISTERING PAINT or read below:

Before you start with the brushes and rollers, give the surface a thorough cleaning. Fresh paint has a tough time sticking to surfaces clogged with loose particles.

Don’t skip the primer. Drywall and plaster absorb way more paint when they’re bare than if they’ve been primed. That means your base coat of paint will have a thinner binder film than necessary for the next coat of paint to stick to.

Painting over excess moisture – whether it’s from water droplets, high humidity, or plumbing problems – is a sure-fire way to create blisters. Track down the source of the moisture and get rid of it before you start painting.

A couple more tips: when you’re stirring your paint, do it slowly. Too much agitation can create air bubbles that turn into blisters on your wall. Take a slower pace, too, when you’re using a roller. Rapid rolling traps air that can spoil the surface.

Bob Vila Radio is a 60-second home improvement radio tip of the day carried on more than 186 stations in 75 markets around the country. Click here to subscribe, so you can automatically receive each new episode as it arrives—absolutely free!