Sikalastic® M 640 – Liquid Polyurethane Roof Waterproofing – 1kg

Product Title: Sikalastic® M 640 – Liquid Polyurethane Roof Waterproofing – 1kg

Product Overview: Sikalastic® M 640 is a premium, single-component, cold-applied polyurethane membrane designed for high-performance roof waterproofing. This liquid coating cures to form a seamless, durable, and weather-resistant barrier that protects your structure from water ingress. Its advanced formula offers excellent crack-bridging abilities and root resistance, making it an ideal solution for complex roof details and repairs where traditional membranes might be difficult to apply.

Key Features:

• High Performance: Creates a tough, elastic seal that withstands thermal movement and structural shifting.

• Seamless Application: Applied as a liquid to form a joint-free membrane, eliminating the risk of leaks at seams.

• Cold Applied: Safe and easy installation with no torch or open flame required—simply apply with a roller or brush.

• Crack Bridging: Capable of bridging small cracks in the substrate to maintain a watertight seal.

• Root Resistant: Suitable for use in green roof build-ups or areas exposed to plant growth.

Suitable Applications:

• Waterproofing of flat and sloping roofs.

• New construction and refurbishment projects.

• Applicable to complex shapes and details (corners, pipes, gutters).

• Repairing existing bituminous felts or concrete surfaces.

Specifications:

• Brand: Sika

• Model: Sikalastic® M 640

• Type: 1-Component Polyurethane Membrane

• Volume/Weight: 1 kg

• Application: Roller or brush