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DESCRIPTION

Bubbles caused from a loss of adhesion and lifting of the paint film from the underlying surface.

POSSIBLE CAUSE

  • Heat blistering caused by painting in direct sunlight on a surface that is too warm.

  • 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.

  • Application of oil-based or alkyd paint over a damp or wet surface.

  • Exposure of latex paint film to dew, high humidity, moisture, or rain shortly after paint has dried, especially if there was inadequate surface preparation and/or poor ventilation in areas such as kitchens and bathrooms.

  • Damp basements.

  • Moisture seeping into the home through the exterior walls.

  • Insufficient surface preparation, painting over a contaminant that the coating cannot adhere to.

SOLUTION

See Lead Information.

  • If blisters go down to the substrate (e.g. the surface that is painted), the cause is likely to be moisture escaping from the surface. Remove all loose paint (by scraping or other method) and sand the surface to smooth out any rough edges. Determine and repair any cause of excess moisture before repainting. Repair old or damaged caulking or install new caulking as needed, install vents or exhaust fans or siding wedges to allow the moisture a path to escape instead of going through the paint.

  • If blisters go down to a previous coat, remove all loose paint (by scraping or other methods), and sand the surface to smooth out any rough edges. Sand any glossy surface dull. Allow sufficient drying time after cleaning.


INTERIOR

Primer

(if needed)


Premium Wall & Wood Primer
Multi-Purpose Interior Oil-Based/Undercoater

Suggested Finish
Duration Home®
Cashmere®
SuperPaint®
ProClassic®

See Interior Paints

Caulk
SherMaxâ„¢ Urethanized Elastomeric Sealant
PowerHouseâ„¢ Siliconized Acrylic Latex Sealant
Kitchen & Bath

EXTERIOR

Primer

(if needed)


Exterior Oil-based Wood Primer
Loxon® Concrete & Masonry Primer/Sealer
All Surface Enamel Primer

Suggested Finish
Duration®
SuperPaint®
A-100®
WoodScapes®

See Exterior Paints

Caulk
Stampedeâ„¢ 1 Polyurethane Sealant
PowerHouseâ„¢ Siliconized Acrylic Latex Sealant
Concrete & Masonry Patch

 

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