Single-component, cement-based, ready-to-use dry-mix mortar

Product description

WILLIT® S-KSM is used

  • for system-compliant repair and renovation of concrete surfaces of all kinds. Spreads to 6 mm thin for coating large surface areas in sewers, hydraulic structures, wastewater structures, containers and fittings
  • for grouting, sealing, coating and levelling interior and exterior surfaces with a high resistance to chemical corrosion
  • waterproof, can be permanently submerged
  • for coating other structures and surfaces that are exposed to chemical attack
  • for concrete repair in the statically relevant area, repair procedures 3.1, 3.2, 3.3, 4.4, 7.1 and 7.2 according to ENV 1504 part 9 or 1504 part 3 table 1



Processing time at 20°C [min]          60
TDS & MSDS on request 


Mix the mortar to a homogeneous, smooth consistency in a compulsory mixer or using an electrical handheld mixer with a large paddle at low speed. Pour approx. 4/5 of the required quantity of water into the mixing tub and add WILLIT® S-KSM with the mixer paddle running. Add the remaining water little by little. WILLIT® S-KSM is ready to use after a total of 3 minutes of mixing and must then be processed immediately. Please request additional technical advice if using a plastering machine.


Paper/ PE sacks 25 l25 kg
Other delivery forms on request 


Nicolas Houy

Head of Business Development Sewer Repair

Phone:+49 6873 9999 216
Mobile:+49 173 146 27 32

Anna-Maria Nalbach

Assistant to Head of Business Development Sewer Repair

Phone:+49 6873 9999 137
Mobile:+49 162 683 15 45

Jürgen Scholz