Sikalastic M 640

Sikalastic M 640 is a cold-applied, one-component, ready-to-use, low-viscosity elastomeric polyurethane membrane for roof waterproofing.
Once cured, Sikalastic M 640 forms a seamless, durable waterproofing membrane suitable for exposed structures.

  • Waterproofing of roofs in new construction and refurbishment works.
  • Suitable for waterproofing roofs, flat roofs, and balconies.
  • Waterproofing structures with various details, such as penetrations, drainpipes, skylights, and complex geometries.
  • Waterproofing existing substrates of concrete, bituminous membranes, asbestos cement, metal, wood, and unglazed ceramic tiles.
  • For exterior use only.

  • One-component, ready to use, and easy to apply
  • Excellent crack-bridging capability
  • High elasticity and flexibility, even at −20 °C
  • Excellent thermal resistance

Total consumption: ~1.5–2.0 kg/m², depending on the system configuration.

White – Grey – Terracotta

Metal Pails 25 Kg

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