Interior Paint Problems: Surfactant Leaching
Surfactant leaching, also known as exudation or weeping, causes the appearance of sticky brown residue or spots on paint.Surfactants are necessary ingredients of latex paint. These water-soluble components migrate over time to the surface of the paint and eventually evaporate.
When newly applied latex paint is exposed to high moisture or humidity while it's drying and/or curing, the surfactants can rise prematurely to the film's surface, producing a brown residue or splotches. Surfactant leaching frequently shows up in bathrooms and other humid environments as brown stains on ceilings or walls.
While unattractive, surfactant leaching does not harm the coating.
What Causes Surfactant Leaching?
How to Remedy Surfactant Leaching
How to Prevent Surfactant Leaching
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