Nitocote SN502


Nitocote SN502 is a penetrating, hydrophobic silane-siloxane treatment for concrete and masonry. The material penetrates into porous substrates and then reacts to produce a bonded hydrophobic lining to the pores. Although allowing passage of water vapour from the substrate it significantly reduces the absorption of water and water borne salts.

To protect atmospherically exposed reinforced concrete structures from attack by chloride ion and water intrusion. The product is also suitable to protect other cementitious substrates and masonry. Nitocote SN502 is suitable for use on all types of structures, including those in coastal environments. It is equally suitable to for new and existing structures.

General information

Uniclass 2015

Pr_35_31_77_15 Concrete sealersPrimary


C42/350 Impregnations for protecting concrete

M60/175 Protective coating

Specification data - Concrete sealers

Product Reference

Nitocote SN502

Standard product features

  • Penetrates into substrates.
  • Non-staining.
  • Reduces water and chloride intrusion.
  • Increases freeze/ thaw resistance.
  • Minimises efflorescence.
  • Allows water vapour to escape from structure.
  • Chemically resistant to ice melting compounds, fuels, oils and atmospheric contaminants.


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