Sikasil® WS-300 KR

Weatherproofing sealant

Sikasil® WS-300 KR is a durable, neutral-curing silicone sealant with an excellent adhesion to a wide range of substrates.  

  • Outstanding UV and weathering resistance
  • Adheres well to glass, metals, coated / painted metals, plastics and wood
  • ASTM C920 for Type S, Grade NS, Class 25