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Sika-1 Waterproofer For Basements & Cellars 25ltr

Item Code: 547950941

£222.69Ex VAT£267.23 Inc VAT
Click & CollectAvailable for collection
DeliveryFree next day delivery options available (restrictions apply)
Acting as a barrier against the transmission of liquid water, Sika®-1 Waterproofer is an aqueous solution, which contains complex colloidal silicates;when they make contact with water, they swell and block the capillaries and pores in the applied sand/cement renders, screeds and mortars.


  • Proven for 100 years
  • For brick, concrete and stone substrates
  • Can be applied against live water infiltration, in conjunction with Sika® 2 and Sika® 4a
  • Wall render and screed application
  • Can be used internally and externally
  • Excellent resistance to backwater pressure
  • Suitable for contact with potable water
Volume (Litres)25
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