Cetco Cetbit 300 Membrane - 1 x 20m Roll

CETBIT 300 combines the flexibility and adhesion of rubberised bitumen with the dimensional stability and mechanical strength of a cross-laminated HDPE film. This dual-layer construction ensures consistent thickness across the membrane, with excellent resistance to water ingress and stress from structural movement. The membrane is supplied in 1.0 m x 20.0 m rolls, with a siliconised release liner that is removed during application for immediate adhesion.

Designed for cold application without the need for heat or additional adhesives, CETBIT 300 simplifies installation while maintaining a durable bond. For optimum performance, all detailing—including corners, penetrations, and terminations—should be completed using CETCO-approved accessories.

Applications

CETBIT 300 is suitable for waterproofing a variety of substrates, including concrete, masonry, and timber, in both internal and external applications:

• Foundation walls
• Below-grade tunnels and earth-sheltered structures
• Split-slab construction (above and below ground)
• Balconies, podium decks, and plaza areas
• Internal wet zones (mechanical rooms, kitchens, bathrooms, laboratories)

Key Features & Benefits

• Self-Adhering & Cold-Applied: No need for torches or liquid adhesives—just peel and stick.
• Uniform Thickness: Factory-controlled manufacturing ensures consistent membrane performance.
• Cross-Laminated HDPE Film: Offers excellent tensile strength and resists elongation in all directions.
• High Adhesion: Rubberised bitumen creates a secure bond to suitable substrates.
• Fast & Clean Installation: Backed by a siliconised release liner for easy application.
• Versatile Use: Ideal for a wide range of structural and architectural waterproofing applications.

Limitations

• Not suitable for permanent UV exposure—must be protected after installation.
• Not intended as a wearing surface—should not be subjected to vehicular or foot traffic.
• In-service temperature should not exceed 40°C.