Installing a new paver or pressure washing an old one requires the application of a brick paver sealer to waterproof the surface. This sealant will solidify the sand joints and keep the bricks in place, protecting and enhancing their color and preventing water and salt from damaging the surface. It can also seal and stabilize sand joints, reducing sand erosion and weed growth. Efflorescence is a common problem with pavers, caused by moisture dissolving natural salts and minerals inside.
A paving stone sealer will reduce water penetration and can often stop efflorescence. Sealing new pavers helps create a more durable structure, as the sealant solidifies joint grids and keeps the pavers together. It also slows down sand erosion from joints by creating a weather barrier. Paving stone sealants come in two types: solvent-based and water-based.
They can provide a bright shine or a damp look, enhancing the natural beauty of pavers while being waterproof and protecting against the elements. Before applying them, it's important to pressure wash the pavers and re-sand the sand joints. If your pavers have been pre-sealed, you should always test their compatibility before applying them. Sealing your brick pavers yourself is possible, but it's important to remember that if you choose not to seal them, they can suffer from erosion, weed growth, mold or mildew accumulation, discoloration, and may come loose.
Paving stone sealants are popular for pool covers, sidewalk sealing and paving stone waterproofing as they don't become slippery when wet and never flake, peel or chip like film-forming sealants.