In my basement the brick below the ground line suffers fairly severe
efflorescence. Short of parging the outside, or panelling the inside, what
is the best treatment? I have tried the special paints which are supposed
to stop the efflorescence - they don't.
If I just want to paint, is latex the way to go? I suspect it will allow
more breathing, and will last longer.
Efflourescence results from water seeping through the brick from the
outside, and mortar salts dissolving, then preciptating on the drier surface
due to evaporation.. No paint will fully resist it, nor cover it for long.
Therefore, you should find a solution to the seepage from outside, before
contemplating painting it. Latex paint would work fine, once the moisture is
reduced, and the efflorescence is wire-brushed off.
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