Xypex Bio-San C500 is a uniquely designed admixture for integral, long-term protection of concrete in harsh sewage conditions with high levels of H2S that cause microbial induced corrosion. Bio-San C500 combines potent antimicrobial protection along with the unique crystalline technology of the Xypex Admix C-Series.

Bio-San contains bio-active mineral solids that become permanently fixed within the cement matrix impairing bio-film formation thus inhibiting the growth of acid causing sewer bacteria such as Thiobacillus due to high concentrations of H2S. The unique Xypex crystalline technology creates a permanent structure throughout the pores and capillary tracts providing waterproofing and enhanced chemical protection including acid and sulphate resistance. Bio-San C500 prevents microbial induced corrosion, stops infiltration/exfiltration of water, and provides acid and sulphate resistance, significantly extending the service life of concrete sewage collection systems and waste water infrastructure.

Recommended for:

  • Manholes / Sewer Pipes
  • Pump and Lift Stations
  • Head Works
  • Septic Tanks
  • Digesters
  • Clarifiers
  • Industrial Structures


  • Inhibits microbial induced corrosion
  • Resists extreme hydrostatic pressure
  • Resistant to aggressive chemicals (acids and sulphates)
  • Can seal static hairline cracks up to 0.4 mm
  • Becomes a permanent, integral part of the substrate and cannot be punctured, damaged or lose adhesion
  • Does not contain any VOCs
  • Less costly to apply than most other methods
  • Added to the concrete at the time of batching and therefore not subject to weather and surface moisture constraints

We are confident that we have the ability, experience and focused proven product solutions of international repute, to significantly solve any waterproofing or durability imperative you may have.


Driving technology for leading brands


XYPEX products are specifically designed to waterproof and protect concrete structures. Fundamental to the XYPEX product line is the unique XYPEX Crystalline Technology which generates a distinct crystalline structure within the pores and capillary tracts of the concrete matrix.


SCHOMBURG supplies the complete package from substrate preparation to waterproofing of sewerage works for every requirement imaginable. SCHOMBURG offers optimum solutions for below grade waterproofing externally for a water impermeable basement.


Triton is a fast-growing and respected brand in the roofing and building materials industry; manufacturing quality premium-grade liquid rubber used as a seamless membrane for protection against moisture, chemicals and more.


CS’ open air expansion joint covers are ideal for stadiums and spaces with constant vehicular traffic, like parking garages. Choose from winged seal or compression covers that prevent water entry.


Kuniseal C-31DS is specifically designed to act as a water stop in concrete construction joints, pipe penetrations, full-bores, box-outs and for concrete repair.


Thermoplastic polyolefin (TPO) single-ply roofing membranes are among the fastest growing commercial roofing products and have gained broad industry acceptance for their many performance and installation advantages.


COMNIX Construction Chemical products are being used in various sectors in the construction industry such as aviation, water, oil & gas, infrastructure, industrial, residential, power etc.


SPETEC® products are mainly used for waterproofing underground structures such as tunnels, metro stations, dams and basements and for conditioning the subsurface, soil reinforcement, coagulation, slab lifting and chemical containment.

For more than forty years, the ground-breaking crystalline technology of Xypex Chemical Corporation has been serving concrete users around the world.

Concrete is the universal product that among many other things, holds water in, and keeps water out. But when concrete fails and water gets through? Big potential problems... How Xypex Crystalline Technology works to waterproof and protect concrete continues to hold the interest and fascination of concrete specifiers and contractors, worldwide. Our latest visual explanation is the attached animation video with accompanying voice and text. By way of a highly magnified view of one capillary, the animation illustrates how Xypex penetrates concrete and how the catalytic reaction that results ultimately leads to the formation of insoluble crystals and a concrete structure that is permanently waterproofed even against extreme hydrostatic pressure.