Sika Sika Greenstreak Flexible PVC Waterstop Ribbed Centerbulb 717

The Sika Greenstreak 717 is a premium-grade flexible PVC waterstop solution purpose-built to deliver long-term watertight protection in concrete structures. Engineered specifically for expansion joints and construction joints, this ribbed centerbulb waterstop creates a secure, continuous seal capable of withstanding high-hydrostatic pressure environments where waterproofing performance is critical.

The 6-inch wide profile combined with a 1/8-inch thickness strikes an ideal balance between flexibility and structural durability, allowing the waterstop to conform to joint movement while maintaining its watertight integrity over the life of the structure. Whether the application involves below-grade foundations, water containment systems, or high-traffic infrastructure, the 717 profile is engineered to perform.

Manufactured from high-quality virgin PVC compound, the Sika Greenstreak 717 meets or exceeds all relevant industry standards for concrete joint waterproofing. It is well-suited for a wide range of demanding applications, including retaining walls, tunnels, water treatment plants, wastewater facilities, bridge abutments, and reservoirs. Its chemical resistance and long-term dimensional stability make it a trusted choice for civil engineers and contractors working on projects where joint sealing failure is not an option.

Key Features

The Sika Greenstreak 717 is built around a ribbed centerbulb profile, one of the most effective waterstop geometries available for concrete joint sealing. The centerbulb design actively accommodates lateral, transverse, and shear movement at the joint, making it a reliable choice wherever expansion or contraction is expected over the life of the structure.

Constructed from high-quality virgin PVC compound, this waterstop delivers the flexibility and tensile performance required for long-term waterproofing in demanding environments. The material resists a broad spectrum of waterborne chemicals, holds up against UV exposure, and maintains its physical properties across a wide range of temperatures — from extreme cold to high heat — without compromising joint seal integrity.

The 717 carries NSF/ANSI Standard 61 certification, confirming its suitability for potable water contact and making it an approved option for drinking water infrastructure, water treatment plants, and similar regulated applications. It also fully complies with the Army Corps of Engineers PVC Waterstop Specification CRD-C 572-74, meeting the rigorous physical property benchmarks required for government and civil infrastructure projects.

In the field, the 717 installs cleanly using standard heat welding techniques, allowing for secure splicing and continuous transitions at corners and intersections. This makes it a practical and efficient choice for contractors working on foundations, tunnels, reservoirs, retaining walls, and containment structures where a verified, high-hydrostatic pressure-rated waterstop system is specified.

Technical Specifications

Frequently Asked Questions

What applications is the Sika Greenstreak 717 PVC Waterstop used for? The 717 is well-suited for a wide range of concrete waterproofing applications. It is commonly specified for retaining walls, tunnels, bridge abutments, water treatment plants, wastewater facilities, below-grade foundation slabs, reservoirs, and containment structures. Any application requiring a reliable, long-term watertight concrete joint seal is a strong candidate for this profile.

How is the Sika Greenstreak 717 installed? The waterstop is embedded directly into the concrete joint prior to placement, ensuring full encapsulation by the surrounding concrete for a secure and permanent waterproofing seal. Split formwork is typically used so that half of the waterstop profile is cast into the first concrete pour, with the remaining half projecting into the second pour. Proper positioning and alignment at the joint centerline are critical to performance.

What size is the 717 waterstop? The Sika Greenstreak 717 measures 6 inches in width and 1/8 inch in thickness and is supplied in a standard 50-foot roll, making it easy to handle and stage on job sites of varying scale.

Is the 717 resistant to chemicals? Yes. The virgin PVC compound used in the Sika Greenstreak 717 provides excellent resistance to a broad range of waterborne chemicals, making it a dependable choice for industrial facilities, environmental containment structures, and water and wastewater treatment applications where chemical exposure is a factor.

Is the Sika Greenstreak 717 safe for potable water use? Yes. The 717 is NSF/ANSI Standard 61 certified, meaning it has been independently tested and approved for use in structures that come into contact with drinking water. This makes it an approved option for municipal water infrastructure, water treatment plants, and similar regulated applications.

Can the 717 waterstop handle joint movement? Yes. The ribbed centerbulb profile is specifically engineered to accommodate lateral, transverse, and shear movement at the joint. This makes the 717 appropriate for expansion joints and construction joints where some degree of movement is anticipated due to thermal cycling, settlement, or structural loading.

How are splices and transitions handled during installation? All splices, transitions, and intersections should be heat welded using a compatible PVC waterstop splicing iron to maintain a continuous, watertight diaphragm throughout the joint system. Factory-fabricated fittings are strongly recommended for corners and intersections to reduce the risk of field weld failures and ensure long-term waterproofing performance.

Does the 717 meet government and military specifications? Yes. The Sika Greenstreak 717 fully complies with the Army Corps of Engineers PVC Waterstop Specification CRD-C 572-74, meeting all required physical property benchmarks for tensile strength, elongation, tear resistance, and low-temperature performance.