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Sika Greenstreak Hydrotite 32.8' Water Stop with Adhesive CJ-1020-2KADH
Sika Hydrotite is a state-of-the-art hydrophilic waterstop with unmatched durability and watersealing capacity. Comprised of non-bentonite, modified chloroprene rubber, Sika Hydrotite expands up to eight times its original volume when exposed to water. This expansion creates an effective compression seal within joints of limited movement.
- Special expansion delay coating to allow concrete cure prior to expansion
- Adhesive back
- Withstands high hydrostatic pressures
$385.00
Availability: In stock ( 2 Available )
SKU
21231
Sika Hydrotite CJ-1020-2K-ADH – 32.8' Co-Extruded Expandable Waterstop with Adhesive
Sika Hydrotite CJ-1020-2K-ADH is a 32.8-foot, co-extruded, hydrophilic waterstop with adhesive backing designed to seal concrete construction joints. Made from non-bentonite modified chloroprene rubber, it expands up to eight times its original volume when exposed to water, forming a compression seal that prevents water ingress. This dual-component profile combines hydrophilic and non-hydrophilic rubber for directional expansion, while its delay coating prevents premature swelling before concrete placement. The peel-and-stick adhesive simplifies installation, making it ideal for both new construction and retrofit projects involving water-retaining or below-grade structures.
Key Features:
- Expands up to 8x its original volume when in contact with water
- Co-extruded design for directional expansion and reduced stress on concrete
- Peel-and-stick adhesive backing for quick, reliable installation
- Includes expansion delay coating to prevent premature swelling
- Constructed from high-quality, modified chloroprene rubber
- Certified to NSF/ANSI 61 for potable water applications
- Suitable for cast-in-place joints with limited movement
- Durable, reliable sealing for a wide range of structures
Applications:
- Concrete construction joints in water and wastewater treatment plants
- Foundations, retaining walls, and slabs on grade
- Tunnels, culverts, dams, and canal structures
- Pipe penetrations and containment structures
- Swimming pools, aqueducts, and storage tanks
Technical Specifications:
| Property | Value |
|---|---|
| Profile Dimensions | 10 mm × 20 mm (0.39" × 0.79") |
| Roll Length | 10 meters (32.8 feet) |
| Material Type | Co-extruded modified chloroprene rubber |
| Tensile Strength | 350 psi (Hydrophilic), 1300 psi (Non-hydrophilic) |
| Elongation at Break | 600% (Hydrophilic), 400% (Non-hydrophilic) |
| Expansion Volume | 500% minimum (Hydrophilic rubber) |
| Hardness (Shore A) | 52 ± 5 (Hydrophilic), ≥54 (Non-hydrophilic) |
| Hydrostatic Pressure Resistance | Up to 150 ft (45.7 m) |
Frequently Asked Questions:
How is the CJ-1020-2K-ADH installed?
It includes an adhesive backing. Simply peel off the release liner and press the profile onto clean concrete before the second pour.
Can the waterstop be exposed to rain before the second pour?
No. Protect it from premature moisture exposure to prevent early expansion, which may reduce sealing effectiveness.
Is CJ-1020-2K-ADH suitable for potable water applications?
Yes. It is certified under NSF/ANSI 61 and safe for use in potable water structures.
| Brand | Sika |
|---|---|
| Manufacturer | Sika |
