Alkali burn refers to a condition that occurs when the alkalinity in fresh masonry causes the breakdown of a paint's binder, resulting in color loss and overall deterioration of the paint film.
Most likely to occur with vinyl-acrylic latex and oil-based paints applied to masonry surfaces that are less than a year old.
Ref: 86489/2006-09-14
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Alkali (Alkali refers to an alkaline, or basic, chemical. ..)
Breakdown (Breakdown is described as the process by which ...)