Use a penetrating sealer on brick in order to waterproof and prevent moisture from seeping through the brick and mortar. Brick sealers can be used on brick walkways, chimneys, driveways and patios.
Penetrating sealers will leave a natural, flat finish and can be water based or solvent based. Solvent based penetrating sealers perform better and last longer than water based penetrating sealers. They are used to protect the brick against against airborne and waterborne salts, including deicing salts and salt water pool decks.
When using a brick sealer on a house or chimney the absorption of wind driven rain is reduced helping to prevent leaks.