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.

Product Data
Product Data VIEW PDF
Safety Data
Safety Data VIEW PDF

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


Xypex Concentrate is available in 20 lb. (9.1 kg) pails, 60 lb. (27.2 kg) pails and 50 lb. (22.7 kg) bags.


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).


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 Coating Installation & General Information – Close + Details VIEW FILE

Xypex recommended installation procedures and general directions for waterproofing of concrete using Xypex Concentrate and Modified coatings.

Negative Side Waterproofing of Below Grade Concrete – Close + Details VIEW FILE

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.

Waterproofing of CMU & Concrete Block Walls – Close + Details VIEW FILE

Xypex recommended procedures for waterproofing CMU and concrete block structures from the positive or negative side.

Fast-Track Coating System – Close + Details VIEW FILE

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).

Application of Thinset, Stucco, etc. onto Xypex Coatings – Close + Details VIEW FILE

Xypex recommended procedures for application of thinset, plaster, stucco, cement parges, etc. onto Xypex Coatings.

Waterproofing of Dry Mix Shotcrete/Existing Concrete Pools – Close + Details VIEW FILE

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.

Estimating Table – Close + Details VIEW FILE

Xypex recommended Estimating Table is a guide only. Actual usage may vary according to the project.

General Resources

Product Data VIEW FILE
Safety Data (SDS) – Cementitious Products VIEW FILE
Specifications – Coatings VIEW FILE
Schematic Drawings – Coatings VIEW FILE
Environmental Product Declarations (EPD) Certificate VIEW FILE
Health Product Declarations (HPD) Certificate VIEW FILE

Flensburg Navy Barrack Conversion

Flensburg, Germany

In the picturesque northernmost city of Germany, Flensburg, an ambitious project was undertaken to transform a section of an old German navy base into a new focal point for tourism, leveraging its stunning views of the Baltic Sea harbor and the quaint old town center.

Project Sheet
Project Sheet VIEW PDF

Grain Silos

Behira, Smouha & Bani Mazar, Elmenya, Egypt

To waterproof and safeguard new grain silos in Behira, Smouha, and Bani Mazar, Elmenya, contractors applied Xypex Admix C 1000 NF to the horizontal slabs and used Xypex Concentrate for wall repairs. This approach was specifically designed to shield the structures from up to 8 meters of hydrostatic pressure, thereby enhancing their durability and waterproofing capabilities. The use of Xypex products in this project markedly increased the concrete's durability and the silos' overall longevity, ensuring they remain resilient against environmental pressures.

Project Sheet
Project Sheet VIEW PDF

Biogas Plant Anaerobic Digestors

Mramorak, Serbia

The Mramorak biogas plant in Serbia, operational since December 2019, represents a pivotal advancement in renewable energy technologies, specifically in converting organic waste into biogas. This project underscores the importance of selecting construction materials that can withstand the harsh conditions of anaerobic digestion—a process where microorganisms decompose organic matter without oxygen, producing biogas but also creating a highly corrosive environment for conventional concrete.

Project Sheet
Project Sheet VIEW PDF

Holland Township Community Pool

Milford, NJ, USA

The Holland Township Community Pool in Milford, NJ, has existed since the 1950s. However, deterioration over time has resulted in severe cracks in the concrete. The cracks have compromised the pool’s ability to maintain a watertight structure, necessitating annual repairs.

Project Sheet
Project Sheet VIEW PDF

Mount Royal Tunnel Upgrade

Montreal, Canada

The Mount Royal Tunnel upgrade in Montreal, QC, Canada, required an around-the-clock, seamless operation to address water leaks and patch cavities.

Project Sheet
Project Sheet VIEW PDF

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

General Construction Foundation

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.

Wastewater Collection & Treatment

Bailonggang Wastewater Treatment Plant

General Construction Foundation

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.

Dams & Irrigation

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.

General Construction Foundation

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.

Water Holding Structures

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.