Project View
Contact Us

Exterior Paint Problem Solver

Back to Problem Solver Menu

A white, salt-like substance on the paint surface. Frosting can occur on any paint color, but it is less noticeable on white paint or light tints. On masonry, it can be mistaken for efflorescence (See efflorescence/mottling).

Possible Cause:
Forms mostly in protected areas (such as under eaves and on open porch ceilings) that do not receive the cleansing action of rain, dew and other moisture.
Use of dark-colored paints that have been formulated with calcium carbonate extender.
Application of a dark-colored paint over a paint or primer containing calcium carbonate extender.

Often cannot be washed off readily.
Can recur even as a bleed-through when a new top coat is applied. In extreme cases, can interfere with adhesion.
Remove the frosting by wire brushing masonry or sanding wood surfaces, then rinsing.
Apply a quality oil-based primer before adding a second coat of latex house paint.

Back to Problem Solver Menu

Home ¦ Services ¦ Qualifications ¦ References ¦ Photos ¦ Color Tips
Problem Solver ¦ Get Estimate ¦ Discounts ¦ About Us ¦ Contact Us
Advertise Here
© 2003 Eastside PaintPro. All rights reserved.