Cemseal Waterseal is a highly efficient water repellent liquid for above ground porous brickwork, cement renderings, asbestos cements, cast concrete, roughcast, all stonework, wood and leather (including calcareous materials, i.e. those containing limestone). Cemseal Waterseal is completely colourless and does not alter colour texture of the brickwork, rendering or stone work. For maximum protection, a two coat application will normally prevent and cure penetration of rainwater through porous above ground structures. Depending upon the nature of the surface and conditions of exposure the treatment may be expected to give protection anywhere between 3 to 10 years.

Occasionally, cavity walls treated with expanded foam insulation can be found to be giving problems of damp patches which appear on internal walls after rainfall. This is usually interstitial condensation caused by a saturated outer leaf, or capillary action due to bridging of the cavity. The problem may be prevented by the application of one coat of Cemseal Waterseal, which allows the walls to shed water more easily and as the outer wall is thus constantly dry actually improves the insulation and reduces loss.

Advantages 

• Makes the walls and stone water repellent while allowing it to breathe.

• To avoid fungus and moss growth

• Increases the durability of plaster and paint

• Maintains aesthetic sense of natural stones,

• Easy to use, avoids stains.

Application 

Water repellent for porous brick work, cement rendering, concrete and old stone work.