phosforesence or salts in the concrete.

but usually should not show up like that but according to your description it is. scrub with some muriatic acid (big caution) and clean the area to hopefully remove the surface salts.

theeagle,

Thank you for the reply. I will certainly give it a try.

U.S.M.C. Semper Fi !!!

I’m sorry for correcting you theeagle but it is not “phosforesence” or “phosphorescence” it is efflorescence. The muratic wash should remove it but will not prevent its reappearance. To prevent it from coming back you must find the areas where water is getting into the brick wall (cracks, poor flashing, etc.).

Water getting into the wall is dissolving the salts in the mortar and then they will crystallize (or bloom) on the surface where the solution dries. Find the areas where the water is getting into the wall and seal them and you should eliminate the problem from reappearing.

Glenn

Moderator: Construction Systems, Foundations, and Masonry & Stone

For more information about me and/or my qualifications please visit my website at:

www.consultationdirect.com

i know fancy long words. efflorescence. thats one i keep getting screwed up. thats why there is a forum of lots of knowing people around.

.

i've got to proofread my writing better.

No problem theeagle. We all make mistakes. I just try to correct them when I notice them.

Good to have you on board.

Glenn

Moderator: Construction Systems, Foundations, and Masonry & Stone

For more information about me and/or my qualifications please visit my website at:

www.consultationdirect.com