What should I do here? Chemical for removal? Seal or not?
Looks like rust, efflorescence and possibly a little mildew. Obviously it is from the air conditioners. Could that be aluminum oxide instead of efflorescence?
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What would I use to remove efflorescence from brick? Would simple cherry and chlorine do the trick or do I need the hard stuff like muriatic acid, which Id really rather not use
Heres some pics of what I mean:
Theres about 5 brick columns like this at street level. They are all under that steel canopy in the photos.
Any and all tips are greatly appreciated!
What would I use to remove efflorescence from brick? Would simple cherry and chlorine do the trick or do I need the hard stuff like muriatic acid, which Id really rather not use
Heres some pics of what I mean:
Theres about 5 brick columns like this at street level. They are all under that steel canopy in the photos.
Any and all tips are greatly appreciated!