Regular problem poor alkali

Definition

Color loss and overall deterioration of paint film on fresh masonry.

Causes

  • Applying oil-based or vinyl water-based paints to new masonry that has not fully cured

Solutions

  • Allow fresh masonry surfaces to cure for at least 30 days before painting. If this is not possible, use a high-quality, alkali-resistant primer.
  • Test alkalinity of the surface with phenolphthalein or a pH pencil.
  • Paint with a high-quality water-based paint and avoid colors that are alkali-sensitive.

Product Recommendations

Primer

Surface Recommended Primer
Masonry EFF-STOP® Premium
Masonry SUPER-LOC®

Exterior

Desired Finish Recommended Product
Flat EVERSHIELD® Exterior Flat Paint
Velvet EVERSHIELD® Exterior Velvet Paint
Eggshell EVERSHIELD® Exterior Eggshell Paint
Low Sheen EVERSHIELD® Exterior Low Sheen Paint
Semi-Gloss EVERSHIELD® Exterior Semi-Gloss Paint
Gloss EVERSHIELD® Exterior Gloss Paint

Please note that these suggestions are provided as a service to you. We are unable to guarantee or be responsible for the results obtained by these procedures. If you have additional questions, ask any of our expert sales associates.