General Questions
Application Tips
Common Paint Problems and Solutions
 EFFLORESCENCE
Efflorescence is the formation of crusty, white salt deposits, leached from mortar or
masonry as water passes through it.
- failure to adequately prepare surface by removing all previous efflorescence.
- excess moisture escaping through the exterior walls from the inside.
If excess moisture is the cause, eliminate the source by repairing the roof, cleaning
gutters and downspouts and sealing any cracks in the masonry using a quality water-based
all-acrylic or siliconized acrylic caulk. If moist air is originating inside the building,
consider installing vents or exhaust fans, especially in kitchen, bathroom and laundry
areas. Remove all efflorescence and loose material from the masonry with a wire brush,
power brush or power washer; then rinse. Apply a masonry sealer and allow it to dry
completely; then apply a coat of top quality exterior house paint.
| PORTER SYSTEM RECOMMENDATION
|
Primer:Mild Efflorescence - One Coat of PORTERLOCK WB Acrylic Pigmented Sealer No. 6010
Primer:Moderate to Severe Efflorescence - One coat of PORTERLOCK Pigmented Bonding Coat
No. 898
Finish:One or more coats of Super Premium ACRI-SHIELD Acrylic Finish No. 519 Flat, 739
Satin, 619 Gloss
Or
One or more coats of ACRI-PRO 100 Acrylic Finish No. 929 Flat, 3729 Satin, or 6029
Semi-Gloss
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