The waterproof coating prevents the surface ... However, there are some restrictions. While sealants can be applied to concrete walls, they can’t be used over painted drywall.

Unlike toxic conventional silane sealers which create a thin surface barrier, the nonhazardous soy-based PoreShield concrete protectant soaks into concrete to block absorption of damaging salts ...

If concrete can self-seal, blocking penetrations, the material becomes its own waterproofing barrier. This stands in contrast to more-conventional means of waterproofing, which usually involve ...

which hold the concrete and asphalt together. That leads to cracks and overall deterioration. The best driveway sealers seal the surface and keep UV rays and other elements from affecting it.