Durajoint® Waterstop

"The Original"

Durajoint® Waterstop has been providing performance products to the concrete industry for over 60 years.  When failure is not an option, always use Durajoint.

Durajoint PVC Waterstop

Durajoint® PVC Waterstop is designed for use in concrete construction containing joints with one or more sides of the joint subject to hydrostatic pressure. Durajoint Waterstop is used as a barrier within the joint to prevent the passage of liquid through or across the joint. It spans the joint equally and is embedded in the concrete on both sides of the joint to accommodate lateral and transverse movement which can cause the joint to open, close, or misalign.

Composition and Material: Durajoint PVC Waterstop is extruded from an elastomeric plastic compound consisting of virgin polyvinyl chloride and additional resins, plasticizers and stabilizers to meet or exceed the requirements and performance criteria of the Corps of Engineers Specification CRC-C 572-74. Durajoint PVC Arctic Grade Waterstop is available to meet Ontario Hydro Standard M-264-81.  Durajoint is chemically inert, contains no materials leachable by water, and is highly resistant to ozone and oxygen, and to waterborne chemicals.

Durajoint waterstop is fungus resistant as tested against the specifications outlined in Military Standard 810B, Method 508. It will not fatigue with repeated flexing, and retains its strength and elasticity through a temperature range from as low as -35 F (-37.2 C) to a high of +175 F(+79.3 C).

Types of Waterstop

Ribbed Type Waterstop with Centerbulb

The most common and versatile type PVC waterstop used. It is used in expansion, contraction and construction joints, particularly where a large amount of movement is expected. The greater the movement, the larger the bulb that should be used. The bulb works with both lateral and transverse movement, and the ribs provide better watertight sealing than do non-ribbed types

Ribbed Type Waterstop without Centerbulb

Waterstop used in construction joints where little or no movement is expected. Again, the bulb works with both lateral and transverse movement, and the ribs provide better watertight sealing than do non-ribbed types.

Dumbbell Waterstop Type with Centerbulb

Waterstop used in selected application where movement, even if transverse and longitudinal, must be accommodated.

Dumbbell Waterstop Type without Centerbulb

Waterstop primarily used in below-grade joints where little or no movement is anticipated, or in joints where predetermined lateral movement is 1″ or less.

Split Ribbed and Dumbbell Waterstop Type

Waterstop used to eliminate split form work where desirable.

Baseal Type Waterstop Joint Seals

Waterstop designed for on grade installation at the bottom of concrete slabs to prevent upward seepage of ground water through joints, or in thin slab construction, or to waterproof joints at wall/slab junctions.

Factory Made Splices

Factory prefabricated 100% spark tested for quality assurance
• Flat Cross & Vertical Cross
• Vertical Tee & Flat Tee
• Flat Ell & Vertical Ell

In addition to PVC, all profiles are also available in TPER (chemical resistant) and Arctic Grade
Durajoint® Thermoplastic Elastomer Rubber(TPER) Waterstop is embedded in concrete to prevent leaks in the joints of concrete structures, making it fluid-tight. Durajoint® Thermoplastic Elastomer Rubber, used in making waterstop, is a high performance elastomer which combines performance characteristics of vulcanized rubber, such as flexibility and low compression set, with the processing ease of thermoplastics.

• Withstands transient temperatures up to 300° F and continuous temperatures to 275° F
• Fluid resistance is similar to polychloroprene for aqueous-based fluids, oils and hydrocarbons
• Low compression and tension set
• Outstanding dynamic fatigue resistance
• Good tear strength
• Excellent ozone and good weathering resistance
• Hot air stability
• Flame retardance
• Enhanced UV stability

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