Can You Paint over Concrete Efflorescence?

SOLUTION. ... If the surface is highly alkaline, wash with a mild solution of H&C Concrete Etching Solution or Muriatic Acid. Painting should be delayed if efflorescence continues.

Can you paint over efflorescence?

Any efflorescence on the surface must be removed prior to paintingas it is regarded as a poor and friable base that prevents paints and coating systems from adhering effectively.

What paint do you use on efflorescence?

Efflorescence appears as a result of salt being pushed to the surface of masonry. It's a painting issue that's easily overcome by the use of Zinsser Watertite®.