Finish TradesQuestion 271 of 700
An elastomeric coating is applied over hairline-cracked stucco. Its key advantage over ordinary flat paint is that it:
a.Is much thinner and cheaper per gallon
b.Dries to a hard, brittle film
c.Forms a thick, flexible film that bridges hairline cracks and resists water
d.Requires no surface preparation at all
Explanation
Elastomeric coatings build a thick, elastic film that stretches to bridge small stucco cracks and shed water, unlike thin, rigid flat paint. It is thicker and costlier per gallon, is flexible not brittle, and still requires proper surface prep to bond.
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