Close up  image of a surface where bubbles and lifting of the paint film is seen.

Blistering - INTERIOR/EXTERIOR

Bubbles resulting from localized loss of adhesion and lifting of the paint film from the underlying surface.

Causes

  • Painting a warm surface in direct sunlight.
  • Application of oil-based or alkyd paint over a damp or wet surface.
  • Moisture escaping through the exterior walls (less likely with latex paint than with oil-based or alkyd paint).
  • Exposure of latex paint film to dew, high humidity or rain shortly after paint has dried, especially if there was inadequate surface preparation.

Solutions

  • Determine if blisters are attributed to heat or moisture by opening the blisters and examining the backside of blistered paint.
  • If only the most recent paint applied has blistered, the blister was probably caused by heat. Remove blisters by scraping, then sanding; prime any bare wood and repaint with a high-quality exterior paint in the desired sheen.
  • If blisters go down to the substrate, the blister was probably caused by moisture. In this case, remove blisters and more importantly remove the source of moisture. Prime all bare areas with a high-quality primer. Repaint the surface with a high-quality paint in the desired finish.

Ready to get started?

 

Contact a BEHR PRO® rep

Your reputation depends on your ability to do the job right. BEHR can help.

Find a rep
JOIN THE HOME DEPOT®
PRO XTRA LOYALTY PROGRAM

Save up to 20% OFF
BEHR® Paints, Stains & Primers.

Home Depot Pro XTRA royaly program
SIGN UP ON HOMEDEPOT.COM
Technical services

1-800-854-0133 ext. 2

Mon - Fri, 6am-5pm PST
Sat, 7am-3:30pm PST
Sun, Closed

Never miss out on the latest deals and news from behr.