Driveways are generally made of porous materials, including concrete, brick, cobblestones, and asphalt. The problem with these materials is that they act like sponges and absorb oil leaks and everything else, leading to stubborn stains. While you may be able to get rid of tough stains and marks via pressure washing, you can’t pressure wash regularly. If you went through all the trouble of cleaning your driveway, you don’t want to end up with recurring stains. To prevent this, you should apply a driveway sealant.
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