Belzona 3111 (Flexible Membrane) is a single-component, water-based liquid membrane formulated to provide waterproof and breathable protection for roofs, terraces, and surfaces exposed to harsh weather conditions.
Its microporous structure allows water vapour to escape, preventing internal moisture build-up while maintaining an effective barrier against external water ingress.
Easy to apply, Belzona 3111 provides excellent adhesion to a wide range of substrates, including concrete, asphalt, galvanised steel, and metals. Its high elasticity makes it ideal for surfaces subject to movement or vibration, ensuring continuous and long-lasting protection.
When used in combination with Belzona 9311 Reinforcement Tape, Belzona 3111 creates a flexible and durable system that can adapt to complex geometries and different surface configurations, providing long-term protection.
It is particularly suitable for protecting the external tank chimes, in accordance with the certified Belzona TBS – Tank Base Sealing System.
Key Features
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