Learn how to identify and repair frosting on paint with this helpful how-to guide.

Frosting issues can occur on virtually any surface and happen when:

• An areas is protected from the cleansing action of rainfall.
• Paint is exposed to excessive moisture (dew, condensation, rain, etc.) or cool temperatures during the application and drying process. 

For water-soluble crystals
Water-soluble crystals will disappear after washing with warm water. Follow-up water flushing may be required at later dates, and eventually crystal formation will cease.

For not water-soluble crystals
Allow surface to dry thoroughly. Then use a soft-bristle scrub brush to carefully scrub crystals away until original color of paint film reappears. Depending on the severity, this may be sufficient to remedy the problem and you can skip steps two and three.

If frosting residue remains, apply a coat of primer to act as a barrier coat and prevent the frosting from bleeding through.

Apply another coat of the original finish. Be sure to paint during weather conditions that allow paint film to cure properly.

For stubborn frosting residue add a coat of Exterior Oil-Based Wood Primer before repainting.