Did this brick wall at a condo complex on Monday. Used NMD80 and applied a bajillion times till all the white stuff was gone. Wall looked awesome. Got a call yesterday that it does not look good anymore. I went there today and there is white powdery stuff coming out of the brick. You can even rub it off with a brush or finger.
Whats going on here?
Reapply nmd80 or do I try something else?
Will it keep bleeding out?
Dont get much brick around here so am kinda lost.
the post and close up pick is the powder that is on now.