Double Layer Water Swellable Rubber Advanced Sequential Expansion For Multi Stage Waterproofing

Double Layer Swelling Waterstop Strip Sequential Expansion for Multi Stage Waterproofing

Product Overview This advanced water swelling rubber strip features dual expansion zones for staged sealing in high-risk water ingress zones such as multi-layered tunnel linings or utility shafts.

Features Two-stage expansion structure Primary and delayed sealing zones Resists premature expansion High pressure sealing performance.

Technical Specifications Material: Dual-core swelling rubber Primary Expansion: 150–200% Delayed Zone: 48–96 hrs delay; 250–350% swelling Size Options: 30×10mm, 25×12mm Service Temp: -30°C to +80°C.

Applications Shield tunnel segment joints Multi-layer utility tunnels Shaft walls and watertight compartments Critical leak-prone cold joints.

Customization Options Tailored expansion timing per zone Special profile extrusion Multi-color coding per function Pre-assembled kits.

Double Layer Water Swellable Rubber

Double Layer hydrophilic rubber Cord 

Advanced Water Swellable Rubber

Double Layer Water Swellable Rubber Advanced Sequential Expansion For Multi Stage Waterproofing Images