Trisodium phosphate (TSP) is a heavy-duty cleaner that is highly effective at degreasing and preparing surfaces. Only after this step should you apply a cleaning agent, as pouring water on fresh oil will only push it deeper into the concrete.
Pro Techniques for Removing Oil Stains from Concrete
Unlike water, which beads on the surface, oil is hydrophobic and has a low surface tension, allowing it to spread quickly and penetrate deep into the aggregate and cement matrix. Apply the paste generously to the dry stain and cover the entire affected area.
This bond is what makes the stain so difficult to remove with basic washing and scrubbing alone. Apply a thick paste to the stained area, ensuring complete coverage.
Pro Techniques for Removing Oil Stains from Concrete
Apply a thick layer directly over the spill and let it sit for several hours or overnight to soak up the oil. Protecting Your Work: Sealing the Concrete.
More About Cleaning oil stains from concrete
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