white concrete after what appears to be muratic acid

Craig

Member
Colt, FYI F9 BARC will remove those HCL acid burn stains and it contains no Hydrofluoric or hydrochloric. Much less dangerous to you. We have concrete coating companies using it because after they use HCL to acid wash concrete in preparation for their coatings it runs down the sidewalk. They use F9 to reverse the orange. It takes a very little amount too.
 

Pressurized

New member
Might need to get some because that concrete turned back dark again then next wash when i put the caustic down

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