Sikaflex®-511

Textured, isocyanate free, low modulus sealant

Sikaflex®-511 is a 1-component, high movement Silane Terminated Polymer (STP) textured sealant that cures on exposure to atmospheric humidity. It is well suited for applications that require both paintability and adhesion to non-porous substrates.  

  • Meets the requirements of ASTM C1248, ASTM C920 Type S, Grade NS, Class 50, Use M (w/ Sika® Primer-210), A, O-Vinyl
  • Good weathering resistance
  • Designed for porous and non-porous substrates
  • Textured appearance blends well to rough or stucco type surfaces
  • Isocyanate free
  • Overpaintable with most paints