How long should I wait to paint fresh stucco or any fresh masonry substrate?
A. I’m glad you asked! NEVER PAINT NEW MASONRY SUBSTRATES, SUCH AS STUCCO, BEFORE 28 DAYS OF CURING. Fresh stucco has a very high level of alkalinity and if painted too early, can burn the paint film, causing loss of color and worst case, complete failure of the paint film. This is known as alkali burn. To avoid this simply wait, at the very minimum, 28 days before painting. Also, Southern paint will gladly test your surface for alkalinity free of charge, provided you are using our paint of course.