Sika Greenstreak Hydrotite 32.8' Expandable Waterstop CJ-0725-3KADH

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

$381.20

Availability: In stock ( 13 Available )

SKU

21230

Sika Hydrotite CJ-0725-3K-ADH – 32.8' Expandable Adhesive-Backed Waterstop

Sika Hydrotite CJ-0725-3K-ADH is a high-performance, adhesive-backed, co-extruded hydrophilic waterstop engineered to seal construction joints against water ingress. Supplied in a 32.8-foot roll, this profile expands up to eight times its original volume when exposed to moisture, forming a reliable compression seal within cast-in-place concrete joints. Constructed from modified chloroprene rubber, it features a directional expansion profile with a delayed swell coating to ensure proper concrete cure before activation. This profile offers easy "peel-and-stick" installation, excellent durability, and is NSF/ANSI 61 approved for potable water structures.

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Key Features:

Expands up to 8x its original volume upon water contact
Non-bentonite, modified chloroprene rubber for superior resilience
Peel-and-stick adhesive backing for easy installation
Delayed swell coating allows concrete to fully cure before activation
Directional expansion reduces concrete stress and cracking
NSF/ANSI 61 certified for potable water applications
Ideal for retrofits and new construction
Withstands hydrostatic pressures up to 150 feet

Applications:

Water and wastewater treatment plants
Tunnels, culverts, and dams
Below-grade foundations and slabs
Pipe penetrations and retaining walls
Swimming pools and storage tanks

Technical Specifications:

Property	Value
Profile Dimensions	7 mm × 25 mm (0.28" × 0.98")
Roll Length	10 meters (32.8 feet)
Material Type	Co-extruded modified chloroprene rubber
Hardness (Shore A)	52 ± 5 (Hydrophilic), 54 min (Non-hydrophilic)
Tensile Strength	350 psi (Hydrophilic), 1300 psi (Non-hydrophilic)
Elongation	600% (Hydrophilic), 400% (Non-hydrophilic)
Water Expansion Volume	500% minimum
Hydrostatic Resistance	Up to 150 ft water head

Frequently Asked Questions:

Can Hydrotite be installed before the second concrete pour?
Yes. Hydrotite CJ profiles are designed for installation after the first pour and before the second pour without needing to split forms.

Does this product come with adhesive backing?
Yes. The CJ-0725-3K-ADH model includes a peel-and-stick adhesive for faster installation.

Is Hydrotite suitable for potable water structures?
Yes. All CJ profiles are certified to meet NSF/ANSI 61 for use in potable water applications.

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