How long before you can paint new plaster?

Question

Accepted Answer

Wait until the plaster has changed from dark pink to a uniform pale pink or beige — typically 1–2 weeks — then apply a watered-down mist coat before the first full coat. • Painting too early traps moisture and causes the paint to flake. • Dark patches mean it is still wet; wait longer. • Use a 50/50 emulsion-and-water mist coat first.