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Nitocote SN511

Nitocote SN511

Brand: Fosroc

Regular price £1,248.31
(£1,497.97 Inc VAT)
Regular price Sale price £1,248.31
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Deeply impregnating, isobutyltriethoxysilane, water repellant and chloride ion protective treatment
for concrete

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Technical Information

Nitocote SN511 is a low viscosity colourless neutral liquid. It has a >98% active content of monomeric isobutyltriethoxy silane which, due to it’s low rate of hydrolysis, penetrates deeply into porous substrates, reacting to produce a bonded hydrophobic lining to the pores. In particular, being solvent free, the product is distributed with uniform high concentration practically throughout the entire penetrated area. This treatment markedly reduces absorption of water and waterborne salts, but still permits passage of water vapour gas out of the structure. The treatment is not affected by UV light and does not produce any discolouration of the substrate.

Where To Use

A deeply penetrating treatment designed to protect concrete from both water and chloride ingress whilst still permitting water vapour transmission out of the structure. Nitocote SN511 is especially suitable for protecting concrete structures in marine and coastal environments.


  • Reduces water and chloride ingress
  •  Deep penetration into porous substrates
  •  Allows water vapour to escape from the structure
  •  Environmentally friendly - solvent free
  •  Exceptional alkali resistance
  •  Reduces the effects of Alkali-Silica reactive aggregates
  •  Increases freeze thaw resistance
  •  Minimises efflorescence
  •  Chemically resistant to ice melting compounds, fuels, oils and atmospheric contaminants 



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