Water Proofing

Why seal?

All porous building materials are like hard sponges and will readily absorb damaging agents such as water, water-borne salts and oil based stains. This reduces the usefulness of the material. Porous building materials include: concrete, terracotta tiles, cast stone, paving, sandstone, slate, limestone, brick, marble, granite, porcelain, terrazzo, vitreous tile and grout. By sealing with a good quality sealer  less time can be spent maintaining and more time enjoying the surfaces.

What type of sealer should I use?

There are two main types of sealers, namely, surface sealers and impregnating sealers. A surface sealer will provide a physical barrier over the surface. The result is a darkening of the surface. These coatings usually wear relatively quickly and become more slippery when wet. Salts may also build-up under the surface, causing the coating to appear cloudy.

Impregnating sealers can be classified as those that repel water and those that repel both water and oil based stains. Impregnating sealers usually have little effect on the frictional properties and appearance of the surface but will not completely stop dirt and rubber getting into the open pores of the surface.

  • Water Proofing