Sandtex Brickwork Waterproofer and Protector

Sandtex Brickwork Waterproofer and Protector is a clear, breathable treatment designed to help protect exterior brickwork, stone, plaster and concrete from the damaging effects of rain, frost, snow and moisture. Its advanced silicon based formula forms a water repellent barrier that helps reduce water penetration while allowing trapped moisture vapour to escape.

Ideal for exterior walls, façades and other mineral surfaces, Sandtex Brickwork Waterproofer and Protector dries to a transparent finish that preserves the natural appearance of the substrate. Ready to use straight from the container, it can be applied by brush or roller to provide long lasting protection against weather damage.

Before applying Sandtex Brickwork Waterproofer and Protector, ensure the surface is clean, dry and in good condition. Proper preparation will help the treatment penetrate the substrate effectively and provide the best level of water repellency.

• Remove dirt, dust, moss, algae and any loose or flaking material from the surface.
• Ensure the substrate is completely dry before application and do not apply to damp masonry.
• Remove any oil, grease or other contaminants with a Universal Degreaser and Cleaner that could prevent the treatment from soaking into the surface.
• Treat mould, algae or fungal growth with Sandtex Fungicidal Wash and allow the surface to dry thoroughly before application.
• Repair any cracks, holes or damaged mortar with Sandtex Ready Mixed Masonry Filler before treating the surface to achieve the best results.
• Protect adjacent windows, painted surfaces and plants from splashes, and ensure the weather is dry before starting the project.

Always test Sandtex Brickwork Waterproofer and Protector on a small inconspicuous area before starting your project to check suitability, compatibility and the final appearance.

• Shake the container thoroughly before use to ensure the formula is evenly mixed.
• Apply a generous, even coat using a Brush or Roller and Tray, working methodically across the surface.
• Allow the treatment to soak into the substrate and avoid leaving puddles or excess product on the surface.
• Apply a second coat within one hour of the first while the initial coat is still curing.
• Do not apply in wet weather or if rain, frost or very low temperatures are expected before the treatment has dried.
• Allow the treated surface to dry for at least 24 hours before exposing it to heavy rain or other moisture.

Once Sandtex Brickwork Waterproofer and Protector has been applied, allow the surface to dry for at least 24 hours before exposing it to heavy rain or excessive moisture. Regular inspection and simple maintenance will help keep exterior masonry protected for longer.

• Allow the treatment to cure fully before exposing the surface to prolonged wet weather.
• Clean treated surfaces with water and a soft brush if dirt or algae begin to build up.
• Inspect exterior masonry periodically for signs that water is no longer beading on the surface, as this may indicate that another application is required.
• Repair any cracks or damaged mortar promptly to prevent water from penetrating the substrate.
• If you intend to paint the surface in the future, the water repellent treatment may need to weather or be removed to allow good adhesion.
• Store any unused product in a tightly sealed container, protected from frost and direct sunlight.

• Can you apply Sandtex Brickwork Waterproofer over painted brick walls?
  When used over paint, it would reduce the substrate's breathability. For the best results, Sandtex Brickwork Waterproofer and Protector should only be applied to bare, absorbent surfaces.
• What surfaces can Sandtex Brickwork Waterproofer and Protector be used on?
  It is suitable for exterior brickwork, stone, plaster and concrete where a breathable water repellent treatment is required.
• Does Sandtex Brickwork Waterproofer change the appearance of brickwork?
  No. It dries to a clear, transparent finish that helps preserve the natural appearance of the treated surface.
• How many coats should I apply?
  Sandtex recommends applying two coats, with the second coat applied within one hour of the first.
• Can it be applied with a roller?
  Yes. Sandtex Brickwork Waterproofer and Protector can be applied using either a brush or a roller.
• How long does it take to dry?
  Allow approximately 24 hours for the treatment to dry fully before exposing the surface to heavy rain or moisture.
• Can it be used on interior walls?
  No. This product is designed for use on exterior mineral surfaces such as brickwork, stone, plaster and concrete.
• Will it stop damp inside my home?
  The treatment helps reduce water penetration from rain into exterior masonry. It is not designed to solve damp problems caused by condensation, leaks or structural defects.
• Can I apply it to damp brickwork?
  No. The surface should be clean, dry and absorbent before application to allow the treatment to penetrate properly and provide the best level of protection.