Bricks, Masonry, Asphalt and Concrete - How to remove mildew before sealing driveway

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dvarga
09-01-07, 05:48 AM
I am just about to seal my driveway, but how do I remove the mildew to prepare for sealing? I have tried degreaser remover on it, naively hoping that would take care of it. Certain swaths, where it is always shaded, have a green coating of mildew.

marksr
09-01-07, 06:10 AM
You need to use a bleach solution to remove/kill mildew. Rinse well.
dvarga
09-01-07, 12:24 PM
Thanks for the tip, that got rid of the mildew. I put a 50-50 chlorox-water solution. Then rinsed it real good.