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


Product description

WILLIT® S-WS is used to instantly:

  • Seal water ingress points in rock, concrete and masonry
  • Create a waterproof seal between floor surfaces and rising masonry
  • Create a waterproof seal against flowing water, even if submerged

Technical specifications                       

Processing time at 20°C [s]30
TDS & MSDS on request 



Mix WILLIT® S-WS with the specified quantity of water to create a workable, easily formable mixture. The mixing time is approx. 15 seconds. It sets after approx. 30 seconds Form a plug from the mixture and hold it on a trowel or in your hand (wearing rubber gloves) until it begins to heat up. In a single motion, press this plug firmly into the cavity and hold it still until the water stops flowing. When sealing longer cracks, work from the top down to the bottom. Remove excess material flush with the surface. Afterwards, keep the repaired area wet for 15 minutes.

Packaging units

Plastic bucket 25 l15 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