Paint With Confidence
Exterior Common Issues & Solutions
Text & image courtesy of the Rohm & Haas Paint Quality Institute
Surfactant Leaching
Concentration of water-soluble ingredients on the surface of a latex paint, typically on a ceiling surface in rooms that have high humidity (e.g., shower, bathroom, kitchen); may be evident as tan or brown spots or areas, and can sometimes be glossy, soapy or sticky.
Possible Cause
All latex paint formulas will exhibit this tendency to some extent if applied in areas that repeatedly become humid (bathrooms, for example), especially in ceiling areas.
Solution
Wash the affected area with soap and water, and rinse. Problem may occur once or twice again before leachable material is completely removed. When paint is applied in a bathroom, it is helpful to have it dry thoroughly before using the shower. Remove all staining before repainting.
