Skip to content
* * * Free two-day shipping on domestic orders $350+ (some exclusions apply) * * * Phone to check your item is in stock before picking up * * *
Free two-day shipping on domestic orders $350+ (some exclusions apply). Phone to check your item is in stock before picking up

Sikalastic®-1K One-component Cementitious mortar 20kg

$114.47 inc.GST
SKU SIK493661
Sikalastic®-1K is a one-component, crack-bridging, fibre-reinforced mortar, based on cement modified with special alkali-resistant polymers. Sikalastic®-1K is suitable for application by brush or trowel.

  • One-component product, only water needs to be added
  • Adjustable consistency, easy to apply by brush or trowel
  • Good sag resistance and easy to apply, even on vertical surfaces
  • Good crack-bridging ability
  • Very good adhesion on many substrates including concrete, cement mortars, stone, masonry
  • Can be applied on damp substrates
  • Compatible with Sika® polymer modified tile adhesives suitable for immersed applications
Where to use
  • Flexible waterproofing and protection of concrete structures including tanks, basins, pipes etc.
  • Waterproofing of bathrooms, showers, terraces, balconies, swimming pools prior to the installation of tiles
  • Waterproofing of external wall surfaces to be backfilled in ground
  • Inside waterproofing of negative water pressure of walls and floors in basements
  • Flexible protection coating for reinforced concrete structures against the effects of freeze-thaw and carbon dioxide attack to improve durability

Product Data Sheet


  • Item: Sikalastic®-1K 
  • Brand: Sika
  • Colour: Light Grey
  • Size: 120 kg bags & 10kg Pails
  • Quantity: 1 x 10kg Pail / 120 kg bags