Description

Protectosil 800 is a free-flowing, colorless, solvent-free liquid based on a monomeric alkylalkoxysilane. It is specifically intended for the water-repellent impregnation of mineral construction materials in outdoor areas.



Protectosil 800 is supplied ready to use. It is low volatility and viscosity make Protectosil 800 an easy-to-handle additive. During the hydrolysis reaction between water and Protectosil 800 a certain amount of ethanol (VOC) is released. Protectosil 800 is soluble in common non-polar organic solvents (e.g. petroleum ether, toluene).


Because of its unique structure, Protectosil 800 exhibits superior hydrophobicity on substrates and forms weather- and moisture-resistant bonds to substrates as well.




  • Pure, solvent-free product

  • Low volatility

  • Watervaporpermeable, colorless impregnation

  • Non film-forming

  • Seals hairline cracks up to 0.3 mm

  • Significantly reduces absorption of water and damaging water-borne salts (e.g. chlorides)

  • Very good penetration

  • Very high alkali resistance

  • Frost resistant

  • Stops alkali/silica reactions in concrete


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