Sikalastic® M 640 is a premium polyurethane liquid waterproofing membrane designed for roofs, terraces, balconies, and concrete surfaces. It creates a seamless, flexible, and UV-resistant waterproof barrier with excellent crack-bridging performance.

Application Process

1. Ensure the surface is clean, dry, and sound.
2. Apply a suitable primer if required.
3. Stir the product thoroughly.
4. Apply the first coat using a roller or brush.
5. Apply a second coat after the first has cured.
6. Allow to cure completely before exposing to water.