Sika Sika Greenstreak Flexible PVC Waterstop Ribbed Centerbulb 703

The Sika Greenstreak 703 Ribbed Centerbulb PVC Waterstop is a high-performance concrete joint sealing system engineered to prevent water infiltration across a wide range of demanding structural applications. Designed to perform in both dynamic movement joints and static construction joints, this 6-inch wide, 3/16-inch thick waterstop delivers consistent, long-term watertight protection — even in high-hydrostatic pressure environments where joint sealing failure is not an option.

The ribbed centerbulb profile is the most versatile waterstop geometry available, accommodating lateral, transverse, and shear movement while maintaining a secure, continuous seal within the concrete joint. This makes the 703 an ideal choice for infrastructure projects where joint movement, ground settlement, or hydrostatic loading are primary concerns.

Manufactured from premium virgin PVC, the Greenstreak 703 offers exceptional flexibility and dimensional stability without sacrificing long-term durability. Its resistance to waterborne chemicals, UV exposure, and temperature extremes makes it a reliable waterproofing solution across a broad range of environmental conditions. From potable water treatment facilities and underground tunnels to retaining walls, reservoirs, and bridge abutments, this waterstop is built to protect critical concrete structures for the long haul.

Fully compliant with the Army Corps of Engineers PVC Waterstop Specification CRD-C 572-74 and NSF/ANSI Standard 61 certified for potable water contact, the Sika Greenstreak 703 meets the most stringent industry and federal construction standards — giving engineers, specifiers, and contractors confidence in every pour.

Key Features

The Sika Greenstreak 703 is built around a ribbed centerbulb profile — the most effective waterstop geometry for joints that experience movement. The centerbulb accommodates lateral, transverse, and shear displacement, while the ribbed flanges improve mechanical bond within the surrounding concrete, creating a reliable watertight diaphragm that holds up under real-world conditions.

Fabricated from premium virgin PVC, this waterstop is engineered to resist waterborne chemicals, UV exposure, and temperature extremes, ensuring long-term performance in even the harshest environments. Its flexibility and durability make it equally at home in high-hydrostatic pressure applications as it is in standard construction joint scenarios — from deep below-grade foundations to above-grade containment structures.

Installation is straightforward and field-proven. The 703 is heat weldable for continuous, secure splicing in the field, and factory-fabricated intersections and transitions are available to reduce the risk of installation error at directional changes and joint crossings — one of the most common points of waterstop system failure.

Compliant with the Army Corps of Engineers PVC Waterstop Specification CRD-C 572-74 and NSF/ANSI Standard 61 certified for potable water contact, the Greenstreak 703 is a trusted specification for water treatment plants, tunnels, bridge abutments, reservoirs, and containment structures where long-term waterproofing integrity is critical.

Technical Specifications

Frequently Asked Questions

What applications is the Sika Greenstreak 703 PVC Waterstop used for? The Greenstreak 703 is a versatile waterstop solution used across a wide range of civil and infrastructure applications. Common uses include retaining walls, underground tunnels, bridge abutments, water and wastewater treatment plants, reservoirs, below-grade foundation slabs, and concrete containment structures. Any application requiring a reliable, long-term watertight concrete joint seal is a strong candidate for this product.

How is the Sika Greenstreak 703 installed? The waterstop is embedded directly into the concrete joint prior to placement, ensuring full encapsulation on both sides of the joint for a secure, continuous waterproofing seal. Split formwork is typically required for wall-to-wall and slab-to-wall joints. The centerline of the waterstop should be carefully aligned with the center of the joint during placement. All transitions, splices, and intersections should be heat welded using a PVC waterstop splicing iron to maintain a continuous watertight diaphragm throughout the structure.

What size is the Greenstreak 703 waterstop? The 703 profile measures 6 inches in width and 3/16 inches in thickness, supplied in a convenient 100-foot roll. This size strikes an effective balance between coverage, flexibility, and ease of handling on the job site.

Are factory-fabricated fittings available for the 703? Yes. Sika strongly recommends factory-fabricated intersections and transitions for any application where joints change direction or intersect. Field-fabricated connections are one of the leading causes of waterstop system failure, so factory fittings are a smart investment for long-term waterproofing performance and installation quality assurance.

Is the Greenstreak 703 resistant to chemicals? Yes. The 703 is manufactured from flexible virgin PVC, which offers excellent resistance to a broad range of waterborne chemicals. This makes it well suited for industrial, environmental, and municipal applications — including wastewater treatment facilities and chemical containment structures — where exposure to aggressive fluids is a regular concern.

Is the Greenstreak 703 safe for potable water applications? Yes. The Sika Greenstreak 703 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 certification makes it a go-to choice for municipal water treatment plants, reservoirs, and other potable water infrastructure projects.

Does the Greenstreak 703 meet federal construction specifications? Yes. The 703 fully complies with the Army Corps of Engineers PVC Waterstop Specification CRD-C 572-74, one of the most recognized and stringent standards in the industry. This compliance makes it an approved and specifiable product for government, municipal, and federally funded construction projects.