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Sika Greenstreak Hydrotite CJ-1020-2K 32.8ft Roll 419020
Sika Hydrotite CJ-1020-2K is a hydrophilic chloroprene strip waterstop in a 32.8 ft roll for site-formed concrete joints. It swells in water to form a compression seal where movement stays limited.
- Hydrophilic strip expands to seal site-formed joints
- Expansion-delay coating lets concrete cure first
- NSF/ANSI 61 approved for potable-water contact
$357.06
Availability:
Out of stock
Sika Hydrotite CJ-1020-2K
Sika Hydrotite CJ-1020-2K is a hydrophilic modified chloroprene rubber strip waterstop that expands up to eight times its volume when exposed to water to form a compression seal in site-formed concrete joints. This co-extruded CJ-1020-2K profile measures approximately 10 mm by 20 mm and ships as a 32.8 ft (10 m) roll (part 419020). An expansion-delay coating lets concrete cure before swell, and all CJ profiles meet NSF/ANSI 61 for potable water.
Key Features
- Non-bentonite modified chloroprene hydrophilic waterstop
- Co-extruded CJ-1020-2K profile approximately 10 mm by 20 mm
- Expands up to eight times original volume in water
- Expansion-delay coating before swell
- Withstands high hydrostatic pressures for most profiles
- 32.8 ft (10 m) roll; NSF/ANSI 61 approved
Applications
- Water and wastewater treatment facilities
- Tunnels, culverts, dams, locks, and canals
- Pipe penetrations, swimming pools, and storage tanks
- Foundations, retaining walls, and slab-on-grade work
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer | Sika |
| Product | Sika Hydrotite CJ-1020-2K |
| Part no. | 419020 |
| Unit | 32.8 ft (10 m) roll |
| Profile size | Approximately 10 mm x 20 mm |
| Chemistry | Hydrophilic modified chloroprene rubber |
| Volume change | Up to 8x in water |
| Hydrophilic Shore A | Approximately 52 |
| Potable water | NSF/ANSI 61 |
| Adhesive back | No |
Product documents: Sika Hydrotite CJ Product Data Sheet (PDF)
Frequently Asked Questions
What joints suit Sika Hydrotite CJ-1020-2K?
Site-formed concrete joints with limited movement in tanks, tunnels, dams, foundations, and similar water-retaining work.
What size is the CJ-1020-2K profile?
Nominal size is approximately 10 mm by 20 mm (0.39 in by 0.79 in).
What expansion does Sika Hydrotite CJ-1020-2K reach in water?
Up to eight times its original volume, creating a compression seal inside the joint.
What expansion delay does Sika Hydrotite CJ-1020-2K use?
An expansion-delay coating keeps the strip from swelling until concrete is placed and water reaches the joint.
What potable-water approval does Sika Hydrotite CJ-1020-2K hold?
All CJ profiles meet NSF/ANSI 61 for potable-water contact.
What size is Sika Hydrotite CJ-1020-2K?
The roll is 32.8 ft (10 m), part 419020.
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