Bubbles On Wood Siding

Then remove the clamp and wax paper and lightly sand and refinish the surface.

Bubbles on wood siding.

If scraping alone is enough the initial. Let the glue cure overnight. Essentially the top layer of paint dries forming a barrier that prevents the solvents from escaping easily. This problem is far more common when paint is applied to a hot surface.

This has prompted some painters to theorize that the linseed oil had dried out in the original layers that sit on the wood and when the fresh top coat dries it pulls the old layer away from the substrate. What causes bubbles one of the primary causes of bubbles in any kind of finish is moisture in the wood. Cover the repair with wax paper and a flat wood block then clamp the blister flat. To see them you have to be on an angle.

You don t say specifically whether just scraping off the bubbles reveals bare wood or whether the old paint stays intact until the painter sands it off. If you re getting bubbles on your new deck it s probably because your new wood hasn t. Use a scraper to carefully open the paint bubble. The new paint has sealed the moisture in the wood and has bubbled up in the places where the moisture is trying to escape.

Not very easy to see right away. In a large percentage of cases when we pop the bubbles we notice the bubbles open up right to the bare wood. Inspect the inside of the bubble. The bubbles were really subtle.

Bubbles form as the result of a chemical reaction. A moisture problem would result in unfinished wood behind the bubble. Bubbles caused from a loss of adhesion and lifting of the paint film from the underlying surface. The best remedy is to scrape and repaint the siding during a warm dry period so the moisture can come out of the wood and prevent future bubbles from appearing.

Moisture blistering can be caused by the migration of water through an interior wall to the exterior thus pushing the paint off of the surface. Heat problems will result in a visible layer of paint behind the bubble. Excess moisture on your painted walls whether from water droplets high humidity leaks or plumbing problems can cause water filled bubbles in the paint originating anywhere from the substrate. If your siding has been treated with linseed oil in the past prime and paint with oil based products.