Krystol Waterstop System

Construction Joints

Krystol Waterstop System

A comprehensive approach to permanently waterproof concrete construction joints, pipe penetrations, tie holes, and control joints.

How It Works

Krystol technology reacts with moisture to form insoluble needle-shaped crystals that fill capillary pores and micro-cracks, blocking pathways for water and contaminants. Unlike other solutions that rely on free lime, Krystol technology reacts with water and unhydrated cement particles, initiating crystallization throughout the concrete’s lifespan for permanent waterproofing.

Krystol Waterstop System is a comprehensive waterproofing solution for all construction joints and details in concrete structures. It combines Krystol Waterstop Grout, Krystol Waterstop Treatment, Krytonite Swelling Waterstop, and Kryton’s Crack Inducing Waterstop to create a permanent, multi-layered defense against water ingress.

For construction joints, the system offers three levels of protection:

Level 1

Krytonite Swelling Waterstop provides superior swelling pressure (+1000%) and immediate waterproofing for horizontal and vertical joints. It fills gaps and contours in the concrete but does not protect outboard rebar.

Level 2

Combines Krytonite Swelling Waterstop with Krystol Waterstop Treatment or Krystol Waterstop Grout for added durability that also protects outboard-facing rebar and ensures permanent waterproofing in high-pressure environments.

Level 3

Designed for high-risk projects, it integrates Krytonite Swelling Waterstop, Krystol Waterstop Grout, and Krystol Waterstop Treatment for the ultimate defense and immediate, permanent protection for both horizontal and vertical joints, even in the most challenging conditions.

Additional applications for Krystol Waterstop System include pipe penetrations, tie holes, and control joints:

Pipe Penetrations

Applied externally, Krystol Waterstop Grout provides a permanent waterproof barrier. The keyway can be chiseled or formed and filled anytime after form removal, allowing for flexible installation even around congested rebar.

Tie Holes

Krystol Waterstop Grout ensures permanent waterproofing, easily filled after form removal, and suitable for potable water structures.

Control Joints

Kryton Crack Inducing Waterstop and Krystol Waterstop Grout can be used for blindside applications and shotcrete shoring walls. After creating controlled cracks, Krystol technology is introduced through an external waterstop for double-layer protection. The keyway can be filled anytime after form removal, ensuring flexible installation.

Why Krystol Waterstop?

Proven over 50 years

Krystol, introduced over 50 years ago as the first crystallization technology, has proven its efficacy through the enduring longevity of the structures where it was used.

Permanent reactive technology

Withstands extreme hydrostatic pressure once hardened. Any moisture introduced over the lifespan of the concrete will initiate crystallization, ensuring permanent protection.

Durable

Krystol Waterstop System is extremely durable and not prone to jobsite damage like other waterproofing methods.

Versatile

Krystol Waterstop System is easy to install on horizontal and vertical construction joints as it adapts to curves and uneven surfaces, providing additional waterproofing protection. Its distinctive yellow color is easy to detect for post-application inspections.

Sustainable

By making the concrete the waterproof barrier, Krystol technology can reduce the need for additional materials and processes associated with external waterproofing or watertightness methods. This can result in more sustainable concrete over its lifecycle.

Safe

Safe for contact with potable water and certified to NSF/ANSI Standard 61.

Resources

Technical resources

Technical Data Sheet – Krystol Waterstop Treatment

Technical Data Sheet – Krystol Waterstop Grout

Technical Data Sheet – Krytonite Swelling Waterstop

Technical Data Sheet – Kryton Crack Inducing Waterstop

Specifications

Krystol Waterstop System – Concrete Joints – CSI (03 15 16)

CAD Drawings

Wall To Slab – Triple Protection

Wall To Wall – Double Protection – External Grout Method

Wall to Wall – Single Protection