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Concentrate
When mixed with water, this light grey powder is applied as a cementitious slurry coat to above-grade or below-grade concrete, either as a single coat or as the first of a two-coat application. Xypex Concentrate is also mixed in Dry-Pac form for sealing strips at construction joints, or for the repairing of cracks, faulty construction joints and honeycomb.
Advantages of Xypex
- Becomes an integral part of the substrate
- Resists extreme hydrostatic pressure
- Can seal static hairline cracks up to 0.5 mm
- Highly resistant to aggressive chemicals
- Can be applied to the positive or the negative side of
the concrete surface - Does not require a dry surface
- Non-toxic / no VOCs
- Is Permanent solution requiring no further maintenance
- Less costly to apply than most other methods
- Extends the service life of concrete
- No costly surface priming or leveling prior to application
- Does not require sealing, lapping and finishing of seams at
corners, edges or between membranes - Does not require protection during backfilling or during
placement of steel, wire mesh or other materials - Cannot puncture, tear or come apart at the seams
- Allows concrete to breathe
- Available in white for enhanced illumination
Recommended for
- Reservoirs
- Sewage and Water Treatment Plants
- Secondary Containment Structures
- Tunnels and Subway Systems
- Underground Vaults
- Foundations
- Parking Structures
- Swimming Pools
- Precast Components
Packaging
Xypex Concentrate is available in 20 lb. (9.1 kg) pails, 60 lb. (27.2 kg) pails and 50 lb. (22.7 kg) bags.
Coverage
For normal surface conditions, the coverage rate for each Xypex coat is 6 – 7.2 sq. ft./lb. (1.25 – 1.5 lb./sq. yd. or 0.65 – 0.8 kg/m2).
Storage
Xypex products must be stored dry at a minimum temperature of 45ºF (7ºC). Shelf life is one year when stored under proper conditions.
Coating Application - Method Statements
Xypex recommended installation procedures and general directions for waterproofing of concrete using Xypex Concentrate and Modified coatings.
Xypex recommended procedures for the repair of leaks and for the general waterproofing of below grade concrete structures performed on the negative side/inside of the structure.
Xypex recommended procedures for waterproofing CMU and concrete block structures from the positive or negative side.
Xypex recommended procedures to allow a rapid return to service of Xypex coated water holding structures (3 - 4 days from the start of material applications).
Xypex recommended procedures for application of thinset, plaster, stucco, cement parges, etc. onto Xypex Coatings.
Xypex recommended procedures for use of Xypex Coatings to waterproof dry mixed shotcrete (gunite) placed pools, fountains, etc that will receive tile, pool plaster or other additional overlaying finishes.
Xypex recommended Estimating Table is a guide only. Actual usage may vary according to the project.
General Resources
Ikaalisten Vesitorni Water Tower Rehabilitation
The rehabilitation and waterproofing project for the Ikaalisten Vesitorni Water Tower in Finland required materials certified for potable water. Its shape also presented unique challenges making it difficult to install scaffolding and access both the inner and outer basins, so traditional waterproofing methods were not suitable applications.
Covenant University
In 2018, Covenant University in Lagos, Nigeria, undertook a significant waterproofing and concrete protection project involving two mathematics halls and a hall of residence. The project utilized Xypex Admix, Xypex Concentrate, and Xypex Modified to ensure the highest level of durability and integrity in the treated areas.
Eko Atlantic Water Tank
In 2023, the Eko Atlantic project in Lagos, Nigeria, focused on the waterproofing of a concrete water tank, with Lymex Ltd as the contractor. The project aimed to enhance environmental protection, reduce material costs, and extend the service life of the water tank. Utilizing Xypex Concentrate and Xypex Patch'n Plug, the project achieved significant improvements in waterproofing, sustainability, and longevity.
Yodobashi Umeda Tower
The Yodobashi Umeda Tower project in Osaka, Japan, is a significant investment in retail, entertainment, and urban development. It aims to create an engaging destination while boosting the economic and cultural vitality of Osaka's Umeda district. The tower stands 149.9 meters tall with 35 above-ground stories, housing commercial facilities on the lower levels and the Hanshin-Hankyu Hotel above. Additionally, it features four levels of underground parking.
Address East Compound
For the Address East Compound project in New Cairo, Egypt, owned by Dorra Group, Shield for Specialized Constructions executed the waterproofing, using specifications and materials supplied by Beton, the Xypex agent in Egypt. The project utilized Xypex Concentrate for its critical waterproofing needs, including roofs, foundations, swimming pools, and water features.
How to Repair Leaking and Dry Concrete Cracks?
This video will show the commonly employed techniques for using Xypex materials to permanently repair leaking cracks in concrete.
How to Repair Leaking and Dry Concrete Joints?
This video will show the commonly employed techniques for using Xypex materials to permanently repair leaking joints in concrete.
How to Repair Concrete Honeycombs or Rock Pockets?
This video will show the commonly used methods to repair rock pockets, honeycomb, voids, or other similar deficiencies in concrete using Xypex materials.
Application of Xypex Coating Products
Xypex Concentrate is applied as a cementitious slurry to the surface of existing above or below-grade structures to waterproof and protect the concrete against high hydrostatic pressure and aggressive environments.
Projects Using This Product
Setia Spice Convention Centre
Given the environmental circumstances of the location, including a high water table, elevated levels of chlorides, sulphates and carbonating gasses, Xypex waterproofing technology was selected and specified for this project because, unlike other concrete waterproofing systems, Xypex offered permanent and enduring concrete waterproofing and protection, with cost savings accruing from reduced initial construction time as well as future concrete maintenance costs.
Gateway Arch Expansion
The gleaming stainless steel Gateway Arch is the centerpiece of the Gateway Arch National Park and a popular attraction. A plan was developed to dramatically expand and redesign the landscaping and facilities around the base of the Gateway Arch. Waterproofing of all renovated spaces and new facilities was a critical concern.
Canal do Sertão - Hinterland Water Channel
Xypex Crystalline Technology was introduced to the project as a means to solve a specific problem in the early stages of construction. As a result of its performance it became an important component of the whole project to solve the waterproofing challenges. The combined efforts of the federal government, the design team and the contractors together with technical assistance from Xypex distributor MC Bauchemie, enabled the timely delivery of these stages of this highly important project for the Sertão Nordestino region of Brazil.
National Centre of Infectious Diseases
Xypex’s crystalline system for concrete waterproofing and durability was proposed, approved, and accepted to provide protection to the four levels of underground substructure (basement base slabs and perimeters) and three underground pedestrian/vehicular underpass links.
Picayune Strand Restoration Project
The three pumping stations—Merritt, Faka Union, and Miller—were completed in early 2018 and are being used to restore the flow of freshwater over land (known as sheet flow) and maintain pre-existing flood protection. Soon after completion, hydrostatic pressure caused the Merritt pump rooms, located 20 feet (6 m) below grade, to fill with water.
Zuidhorn Rail Bridge
The use of Xypex Concentrate to protect the new railway bridge over the Van Starkenborgh Canal not only helped keep the project on schedule, but provided a significant cost savings over the epoxy coating that ProRail normally uses on such projects.
