Sikasil® WS-355 S

High performance natural stone sealant

Sikasil® WS-355 S is a neutral curing silicone sealant with a high movement capability and very good adhesion to porous and non-porous substrates.
It has been developed as weatherseal specific on natural stone.  

  • Does not stain areas adjacent to the joint
  • Meets requirement of GB/T 23261
  • Very good UV and weathering resistance
  • Adheres well to natural stone, concrete, glass, metals, coated and painted metals, plastics and wood