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You can whiten concrete for unsealed and unfinished concrete with a solution or either muriatic acid or bleach and water—but never both. However, if your concrete does have a stain, finish, or polish, keep in mind that these hard chemicals could damage the topcoat. Your best bet otherwise is to power wash outdoor concrete slabs or clean indoor ones with a gentle cleaner such as laundry or dish detergent.

No, you cannot permanently seal concrete. The porous nature of concrete means that it’s always vulnerable to water intrusion and staining, even under the best sealants. Although some concrete sealing products can last for a long time, a genuinely permanent concrete seal remains elusive.

Driveway installation is challenging. While chip seal might sound easier to apply than asphalt, the process still involves heavy machinery and professional skills. Unless you come from a construction background, we recommend hiring an asphalt company to chip seal your new driveway. If you are paving the driveway entirely with chip seal, expect to pay $5 to $10 per square foot.

To maintain concrete floors, clean them regularly with a damp mop and avoid using abrasive cleaning agents that can damage the finish. Reseal the concrete every 2-3 years to protect the surface and enhance its appearance.