Hey Pro’s this artificial stone wall turned red after a brush fire.
I did a cleaning test with Klenztone #1, #3, #5, Synpro Masonry cleaner, Magic Acid & Sulfuric Acid.
Nothing worked, plus when I wire brushed it very hard to get down to the original color it still seems to be red...
those lite spots below the “D” are the wire brush spots.
The sun lite is making them look white but there lite pink...
any Ideas guys?