ClassicBond® EPDM Rubber Roofing Water Cut-Off Mastic
🌧️ Heavy-Duty Compression Sealant for Waterproof EPDM Terminations
Ensure an absolute watertight seal on your flat roof installations with the ClassicBond® EPDM Water Cut-Off Mastic. This premium, one-part, self-wetting mastic sealant is specifically engineered for critical compression terminations where the rubber roofing membrane finishes against smooth masonry surfaces, metal profiles, or structural details.
Unlike standard silicone sealants, this heavy-duty water cut-off mastic is formulated to remain flexible under pressure, serving as an internal barrier that prevents moisture tracking behind the EPDM system.
🎯 Key Applications & Coverage
This professional termination mastic is a mandatory component for secure detailing in various roofing scenarios:
- Termination Bar Seals: Ideal for application directly behind compression termination bars fixed to walls, parapets, or chimneys.
- Drainage Points: Used as a compression seal beneath clamping-ring roof drains and scupper outlets.
- Excellent Coverage: Each tube delivers an efficient yield, comfortably covering 3 linear metres of bead application.
- Important Note: This product is designed strictly as a compression seal. It must be clamped under constant mechanical pressure (such as via a termination bar) to function as intended and should not be used as an exposed, surface-applied finish sealant.
✨ Features & Benefits
- Self-Wetting Consistency: Specially formulated to permanently maintain contact and adjust to the shifting expansion or contraction of your flat roof structure.
- Aggressive Adhesion: Creates a rock-solid, airtight barrier when compressed between ClassicBond EPDM membranes and brick, stone, concrete, or steel substrates.
- Weather-Proof Barrier: Acts as a bulletproof secondary defense against wind-driven rain, pooling water, and harsh atmospheric moisture at the weakest point of a flat roofits edges.
📋 Technical Specifications
- Brand: ClassicBond®
- Product Code: CBWATERBLC
- EAN: 0616421837264
- Coverage: 3 Linear Metres per tube
