Waterproofers & sealers protect concrete, masonry, wood, brick, and stone from water intrusion, stains, and weathering, helping surfaces last longer and look better with less maintenance. These coatings block moisture, resist UV damage, and reduce cracking from freeze–thaw cycles—ideal for driveways, patios, decks, basements, and foundations.

Choose from two main types. Penetrating sealers (silane, siloxane, siliconate) soak into porous surfaces to create a breathable barrier that repels water while allowing vapor to escape—great for concrete, pavers, and brick where you want a natural finish and efflorescence control. Film-forming sealers (acrylic, polyurethane, epoxy) create a protective layer on top for enhanced stain resistance, sheen options, and abrasion durability—popular for garage floors, stamped concrete, and decorative surfaces. Elastomeric waterproofing coatings add crack-bridging protection to exterior walls and foundations. For wood, deck sealers and waterproofing stains add water repellency plus UV protection to reduce graying and checking.

Water-based sealers offer low odor, fast dry, easy soap-and-water cleanup, and low VOCs. Solvent-based options often penetrate deeper and produce a richer appearance. Look for features like mildew resistance, salt and de-icer protection, hot-tire resistance, and slip-resistant additives for wet areas and slopes.

Application is straightforward with a brush, roller, or sprayer. Prep is key: clean, degrease, and etch or sand as needed; repair cracks; let the surface dry; and confirm suitable temperature and no rain in the forecast. Follow coverage rates (typically 100–400 sq ft per gallon depending on porosity), apply thin even coats, respect recoat windows, and allow full cure before traffic or water exposure.

Quick selection tips:
- Match the product to your substrate (concrete, masonry, wood).
- Decide on finish: natural look vs. satin/gloss sheen.
- Balance breathability with moisture barrier needs (basement vs. driveway).
- Consider slip resistance, UV exposure, and chemical/salt contact.
- Check VOC compliance for your area.

A quality concrete sealer, deck sealer, or masonry waterproofer adds lasting protection and curb appeal—saving time, money, and future repairs.