Q. I have a concrete patio. How do can I remove tar from the surface? A. Unfortunately, tar tends to penetrate the porous concrete surface, and it is very difficult to remove. However, the Portland ...
*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. How do you remove rust stains from concrete? I tried rust-dissolving gel, let it soak 20 minutes, scrubbed for 10 minutes with a ...
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