Xypex Concentrate

Penetrative crystalline cementitious slurry waterproofing coating

$17-24/m2 (per coat)

Coverage: 0.65 - 0.8 kg/m2 (per coat)

Xypex is a unique chemical treatment for the waterproofing, protection and repair of concrete. XYPEX CONCENTRATE consists of Portland cement, finely graded sand and active proprietary chemicals; it is applied as a cementitious slurry to the pre-saturated surface of existing above and below grade structures. The active chemicals diffuse into the substrate and react with moisture and the constituents of hardened concrete to cause a catalytic reaction. This reaction generates a non-soluble crystalline formation throughout the pores and capillary tracts of the concrete, as well as cracks, permanently sealing the concrete and preventing the penetration of water and other liquids from any direction, even under high hydrostatic pressure. Xypex Concentrate is also mixed in a Dry-Pac form for sealing strips at construction joints, or for the repairing of leaking cracks, faulty construction joints and other defects.
  • Overview

    Chemical Base


  • Description


    • Reservoirs
    • Sewage and Water Treatment Plants
    • Underground Vaults
    • Secondary Containment Structures
    • Foundations
    • Tunnels and Subway Systems
    • Swimming Pools
    • Parking Structures


    • Resists extreme hydrostatic pressure
    • Becomes an integral part of the substrate
    • Can seal static hairline cracks up to 0.4 mm
    • Can be applied to the positive or the negative side of the concrete surface
    • Allows concrete to breathe
    • Highly resistant to aggressive chemicals
    • Non-toxic / no VOCs
    • Does not require a dry surface
    • Cannot puncture, tear or come apart at the seams
    • 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
    • Less costly to apply than most other methods
    • Not subject to deterioration
    • Permanent
    • Available in white for enhanced illumination
  • Performance


    Water Permeability: >124 m head (US Army Corps of Engineers CRD C48-92)
    Water Impermeability of Concrete: 4 mm (DIN 1048)
    Depth of Water Penetration: < 1 mm (EN 12390-8)
    Tensile Bond Strength: 1.23 MPa (EN 1542)
    Chemical Resistance to Mortars: One-eighth of the erosion of reference samples (ASTM C 267)
    ASTM C856 “Standard Practice for Petrographic Examination of Hardened Concrete”: In each case, there was evidence of the Xypex crystalline structure in the cracks to a depth of about 20 mm. Photographs taken this depth at 100x magnification showed the Xypex crystalline structure had reduced the width of the cracks dramatically.
    RILEM CPC-18 “Carbonation Resistance of Samples Treated with a Xypex Concentrate Coating”: 35-40% less than reference samples.
    ASTM C876 “Influence of Xypex Coating System on Residual Service Life of Concrete Structures” Durability Assessment Section, Xypex Australia: Results indicated a reduction of corrosion rate and corrosion potential up to 50% and 40% respectively, and significant enhancement of the concrete resistivity.
    ASTM C 672, “Standard Test Method for Scaling Resistance of Concrete Surfaces Exposed to De-Icing Chemicals”: Visual examination of untreated panels after 50 freeze/thaw cycles showed a marked increase in surface deterioration.
    NSF 61, “Drinking Water System Component-Health Effects”: Exposure testing of potable water in contact with Xypextreated samples indicated no harmful effects
    U.S.A. Standard No. N69, “Protective Coatings for the Nuclear Industry”: After exposure to 5.76 x 104 rads of gamma radiation, the Xypex treatment revealed no ill effects or damages.


  • Compliances and Accreditations


    • AS 4020 - 2005
    • EN 1504- 2 (unverified by SpecCave)
    • Initial Type Testing (ITT) according to EN 1504-2 was certified by BSI as the Notifying Body (unverified by SpecCave)

    Accreditations / Certifications

    • CE Marking
    • Green Tag Gold
    • Green Star - Design and As Built v1.2 (Credit 21)
    • Green Star - Interiors v1.2 (Credit 21)
    • Green Star - Performance v1.2 (Credit 21)
  • Systems & Installation

  • Compatible Products

    No compatible products found

  • Stockists & Pricing

  • Projects & Installers

    Project Showcase

    Prince Henry Hospital - Delaney House, Little Bay NSW

    Xypex Megamix II and Xypex Concentrate was used to repair spalled columns and soffits and provide corrosion protection to the steel.


    Funkers Crossing, Southern Downs QLD

    Following flood damage to the New England Highway, Xypex Concentrate, Xypex Modified and Xypex Gamma Cure were selected to rehabilitate concrete culverts to increase durability and improve the compressive strength.



    Ballarat Aquatic Centre, VIC

    Construction and waterproofing of the new balance tanks, pools, concourses and wet areas included the use of Xypex Admix C-1000 NF, Xypex Concentrate, Rawell Rawseal RC50 Black and Rawell Rawseal CJ2025 Black.

  • Downloads

    Xypex Concentrate

    Penetrative crystalline cementitious slurry waterproofing coating

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