Wethertex X71 Polymer Levelling Base Coat - Top-Of-The-Line Waterproofing

Boasts excellent workability and extended finishing time, making it the number one choice for multiple substrates. Whether you're working in low temperatures or applying by hand or spray, this versatile base coat is designed to meet your needs.

Application and Preparation

Before application, ensure all surfaces are sound, clean, dry, and free from materials that may impair adhesion. Avoid applying the base coat to shiny surfaces and ensure scaffolding is independently tied. Address any structural faults that could lead to moisture penetration and mask around the areas where the material is to be applied. Remove masking tape before the material dries out. Include beads and expansion joints as required by the substrate and British Standards.

Mixing Instructions

Mix the X71 Polymer Levelling Base Coat with clean water at approximately 4.5 litres per 25kg bag (for use as a levelling coat; approx. 7 litres per 25kg bag for use as a slurry coat). Use a suitable paddle or pan mixer, mix for 2 minutes, let it stand for 2 minutes, and then re-mix. This process activates the additives, ensuring optimal performance.

Application Guidelines

Avoid rendering below the DPC or within 150mm of ground level to prevent dampness and discolouration. Apply the X71 in a one-coat, two-pass operation to a thickness of 10-15mm. For a 10mm flat finish, apply the first pass to the primed substrate using a stainless steel trowel or spray pump. Include fibre-reinforcing mesh in the first pass, overlapping 100mm at the joints. Apply the second pass wet on wet, level it flat, and finish with a wet sponge float after 2-8 hours. For a 15mm finish, apply similarly but with an additional layer thickness.

Important Considerations

Do not apply the product if frost is forecast or in excessively wet conditions, if relative humidity is above 95%, or in temperatures below +3°C or above +25°C. Avoid direct sunlight on the elevation, and do not apply to hot substrates (above 30°C). Protect the application from heavy rain, direct sun, or wind in the first 24 hours. Failure to follow these guidelines may result in polymer film damage, wash off, discolouration, and potential failure.

Health and Safety

Safety Information: Harmful if swallowed, causes skin irritation, may cause an allergic skin reaction, causes serious eye damage, may cause respiratory irritation.
Contains Diisocyanates: No

For detailed safety instructions, refer to the downloadable data sheet.