Xypex Admixtures are added to the concrete at the time of batching, making it easy to install, and unlike other waterproofing methods, require less trades on site and shorten the time required for installation. The Admix C-Series has been specially formulated to meet varying project and temperature conditions.

Admix C-500/C-500 NF is formulated to have minimal or no effect on setting time. Admix C-1000/C-1000 NF is formulated for concrete mix designs where a normal or mildly delayed set is desired. Admix C-2000/C-2000 NF is designed for warmer climates and projects where a slower hydration rate is typically required. Admix C-500 NF Red and Admix C-1000 Red contains a red oxide pigment as a quality assurance measure for precasters.

For ease of use, Xypex Admix is available in pails, bags or soluble bags.
Product Data
C-500/C-500 NF VIEW PDF
C-1000/C-1000 NF VIEW PDF
Safety Data
Safety Data VIEW PDF
Brochure VIEW PDF

Advantages of Xypex

  • Integral part of concrete matrix
  • Hydrostatic pressure
  • Crack healing
  • Chemical resistance
  • Breathable
  • Non-toxic
  • No VOCs
  • Is Permanent solution requiring no further maintenance
  • Economical
  • Shortens construction scheduled
  • Extends service life on concrete

Recommended for

  • Reservoirs and Water Holding Structures
  • Water and Wastewater Treatment Plants
  • Manholes and Pump Stations
  • Precast Concrete
  • Foundations
  • Basements and Underground Parking Structures
  • Tunnels and Subway Systems
  • Secondary Containment
  • Water Marine Structures
  • Swimming Pools

*Refer to our Product Data for specifics


Xypex Admix C-Series is packaged in convenient sizes of various types of packaging, including repulpable paper bags and soluble bags. Contact your local Xypex Technical Services Representative or dealer for details and availability.

Dosage Rate

Dosage will vary. Please refer to product data of the Admix product for specific dosage details.


Xypex products must be stored dry at a minimum temperature of 45ºF (7ºC). Shelf life is one year when stored under proper conditions.

Admix Application Details

Xypex Admix C-500/C-500 NF Application & General Information VIEW FILE
Xypex Admix C-1000/C-1000 NF Application & General Information VIEW FILE
Xypex Admix C-2000 Application & General Information VIEW FILE
Xypex Admix C-2000 NF Application & General Information VIEW FILE
Xypex Admix C-500 NF RED Application & General Information VIEW FILE
Xypex Admix C-1000 RED Application & General Information VIEW FILE

General Resources

Product Data - C-500/C-500 NF VIEW FILE
Product Data - C-1000/C-1000 NF VIEW FILE
Product Data - C-2000 VIEW FILE
Product Data - C-2000 NF VIEW FILE
Product Data - C-500 NF RED VIEW FILE
Product Data - C-1000 NF RED VIEW FILE
Safety Data (SDS) – Cementitious Products VIEW FILE
Specifications – Additive VIEW FILE
Schematic Drawings – Additive VIEW FILE
Admix C-Series Brochure VIEW FILE

Komunardů XXXV

SEBRE a.s., the developer of this project, trusted Xypex’s concrete waterproofing technology to permanently waterproof the three-story below-grade concrete. This successful project was made possible by the support provided by Xypex’s official representative, Nekap, during the pre-project and project execution phases.

Project Sheet
Project Sheet VIEW PDF

Delhi Metro Rail Corporation (DMRC) Phase III & Phase IV

Delhi, India

Due to the success of the Xypex surface-applied and repair system in various projects, the Delhi Metro engineering team consulted Xypex to provide a waterproofing solution for phase III. The engineering team specified Xypex Admix C-2000 NF and Xypex Concentrate for the waterproofing of phase III underground stations in conjunction with spray applied membranes on the rooftop slab.

Project Sheet
Project Sheet VIEW PDF

Quarles Water Treatment Plant

Marietta, USA

In 2012, after 58 years of service, Plant No. 1 showed the effects of age from decades of service. The concrete in Plant No. 1 suffered deterioration, including exposed rebar, exposed aggregate, loss of surface paste and spalling. CCMWA called on water engineering experts Hazen and Sawyer to study its operation and make a recommendation for Plant No. 1. The team recommended replacing the original plant with a new plant with a capacity of 33 mgd that could be expanded to 66 mgd in the future. 

Project Sheet
Project Sheet VIEW PDF

Rehabilitation of Road Bridge over Railway

During rehabilitation of the main bridge concrete structures there was used Xypex Admix C-1000NF as a protection against negative effects caused by stray voltage. Xypex was used as dosage 2,0 kg/m3. Total usage was 1040 kg.

Byty Malešice II Building

Xypex Admix C-1000 NF was selected to waterproof the concrete foundation slab, walls, lift shafts and sumps due to its ability to simplify the project and save time and money. Xypex representative, Nekap, provided support during the pre-project phase and the project execution as part of our “Being There” philosophy.

Project Sheet
Project Sheet VIEW PDF

Projects Using This Product

General Construction Foundation

Amos Rex Art Museum

The design team for the new Amos Rex Museum considered many solutions for waterproofing the underground art galleries and storage areas but ultimately chose Xypex Admix C-1000 NF to protect against the high water table because of its proven track record in similar high-profile projects worldwide.

Budapest Pedestrian Tunnel


The key challenges in building this pedestrian tunnel were the high water table created by the close proximity of the Danube River and addressing the need to prevent interruption of traffic flow on the street between the buildings. The street is both a major thoroughfare for cars as well as a street car line. The tunnel needed to be water tight to create a comfortable pedestrian space and the traffic needed to be maintained throughout the construction phase.


Rod el Farag Axis Bridge


More than one million cubic meters of concrete was used to build the bridge, which was used in the bridge decking, girders, and six 92 m (302 ft) tall concrete towers that support 160 steel support cables. One of the key challenges for the bridge designers was how to adequately protect the critical concrete structures from the effects of air pollution and the moist riverine environment.

Water Treatment Plants

Sorek Desalination Plant


After thorough investigation, the project design team chose to include 1.5% of Xypex C-500 NF Admixture in the concrete mix to both heal cracks as well as improve the overall chloride durability of the pipe. As the pipe was jacked into place visible leaking was seen in the pipe sections. All visible leakage was seen to heal and the project became so impressed with Xypex’s crack healing ability that the use of the Xypex Admix was extended in the project to include most of the water processing and holding structures as well as the pipe.

Precast Structures

Taylor Shellfish Processing Facility

Xypex Admix C-500 is providing built-in permanent protection against the harsh saltwater environment in the new wet processing facilities at Taylor Shellfish Farms. Saves construction time and eliminates future maintenance.
Wastewater Collection & Treatment

Blacklick Creek Sanitary Interceptor Sewer


To further protect the concrete tunnel from the harsh conditions expected during its projected 100-year lifespan and to ensure watertight operation, the high performance concrete mix was enhanced with Xypex Admix C-500.

Marine Structures

Panama Canal – Chamber Walls & Gatun Lock Culverts


The aggressive marine environment surrounding the over 80-year-old Panama Canal had caused substantial deterioration of the canal’s concrete. Xypex Admix C-2000 was used in the concrete repair mortar to rehabilitate the walls of the gatun lock chambers and conduits.