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KRYSTALINE Add PLUS 2.5 main features

KRYSTALINE Add Plus 2.5 is a new generation high-performance admixture.

  • Available in predosed 1 kg water soluble bags to be added directly to the concrete mix.
  • Product certified by the British Board of Agrément with extremely favorable results. Agrément certificate no. 19/5612
  • Krystaline Add PLUS 2.5 effectively lowers the water/cement ratio by a much higher amount compared to normal crystalline admixtures.
  • Excellent slump retention.


  • Allows for removal of other admixtures such as super plasticizers, water reducers, set retarders etc., from the concrete and simply use Krystaline Add PLUS 2.5 to achieve High Durability concrete.
  • Waterproofs and improves the durability of concrete using hydrophilic, hydration enhancing, crystalline technology.

KRYSTALINE Add PLUS 2.5 performance

  • Concrete is a naturally porous material, with microcracks, voids, pores and capillaries that are formed mainly in the early stages of curing. The more interconnection between these holes, the more permeable the concrete is and the more prone to damage caused by the entry of water and corrosive agents. However, Krystaline Add PLUS 2.5 virtually eliminates porosity of the concrete and many of its inherent weaknesses, which increases durability.
  • Krystaline Add PLUS 2.5 acts by hydrophilic crystallization. It catalyzes chemical reactions between unhydrated cement particles and water, creating insoluble crystalline hydration products which fill the concrete’s capillary network. These crystal deposits become an integral part of the hydrated paste. The resulting concrete has a significantly greater ability to autogenously heal cracks and resist the penetration of water under hydrostatic pressure.

KRYSTALINE Add PLUS 2.5 application

  • Krystaline Add PLUS 2.5 is a powder admixture that is added directly to the concrete mix in water-soluble bags. Serves to reduce water by up to 15% subject to mix design. Krystaline Add PLUS 2.5 is compatible with most super-plasticizers, it is recommended to test before mixing.
  • Add Krystaline Add PLUS 2.5 directly to the concrete during mixing at any time. However, the addition can affect the plastic properties of concrete. Prior testing is recommended.
  • Contact a Krystaline representative for more detailed application instructions.

KRYSTALINE Add PLUS 2.5 main benefits

  • Stop water leaks in concrete
  • Seals and waterproofs cracks up to 0.5 mm
  • Protects reinforcing steel against corrosion
  • Total and permanent waterproofing
  • Waterproofing increases with time
  • Gives concrete excellent resistance to attack by sulphates and chloride
  • Increase mechanical strengths up to 30%
  • Not affected by surface wear or abrasion
  • Effective against hydrostatic pressure, tested at 12 bar (or over 122 meters of head)
  • Waterproofs from any direction (positive or negative side)
  • Water vapor permeable
  • Safe for contact with potable water
  • Replaces unreliable exterior membranes, liners and coatings

KRYSTALINE Add Plus 2.5 typical applications

  • Foundations
  • Basement
  • Tunnels
  • Pipes
  • Maritime projects
  • Submarine works
  • Elevator pits
  • Concrete walls
  • Concrete slabs
  • Marine structures
  • Swimming pools
  • Water treatment plants
  • Channels
  • Potable water tanks
  • Parking structures

Collaborating Entities

Through the efforts of the Krystaline’s R&D department and in close collaboration with various research centers, universities, certifying bodies and various prestigious companies, Krystaline has developed some of the most competitive crystalline technologies in the marketplace, allowing the company to provide sustainable and durable waterproofing solutions for concrete.

Use our expertise

Please contact us to assist you with permanent technical solutions to your waterproofing problems, to find our nearest available distribution channel or for new distribution opportunities. We look forward to hearing from you.


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