*Sika 1 Waterproofer

SKU id4244 ***
This product is now discontinued.

Product Description

This product is now discontinued. Please contact the technical team for a suitable alternative.

Sika-1 Waterproofer is an aqueous solution which blocks the capillaries and pores in brick, stone and concrete substrates, providing a barrier against the transmission of water.

Sika-1 Waterproofer is a liquid additive that prevents water from being absorbed through sand or cement renders, screeds and mortar. Sika-1 Waterproofer is a complex colloidal silicate solution that blocks the pores and capillaries in sand and cement renders. It can be used on its own or as an additive, as part of a waterproofing system.

Best Uses

Sika-1 Waterproofer is a product which is used within construction and industrial environments. It protects brick, concrete and stone substrates from the potential of in-taking water or moisture which would damage the surface.

Suitable for basements and cellars, waterproofing of swimming pools and other water retaining structures, waterproofing of vaults and tunnels, concrete, brick and structural blockwork.

  • Proven for more than 100 years
  • BBA Approved system.
  • Pre batched system mortars available
  • For brick, concrete and stone substrates
  • Compatible with OPC and SRC
  • Can be applied against live water infiltration
  • Wall render and screed application
  • Can be used internally and externally


Sika-1 Waterproofer can applied both above and below ground level and in interior and exterior environments. All existing coatings should be removed, prior to application, and the exposed surface should be roughened, by mechanical or water blasting techniques. Please read the Sika-1 Waterproofer technical data sheets for full preparation and application methods.

Surface and Environment

Sika 1 Waterproofer can be applied to all brick, concrete and stone substrates to provide waterproofing protection that has been proven to last for more than 100 years. It is suitable for basements and cellars, waterproofing swimming pools, vaults and tunnels and for concrete, brick and structural block work.