Low emission multipurpose STP sealant

Sikaflex®-508 is a low emission one-component isocyanate free sealant based on the Sika Silane Terminated Polymer (STP) technology which cures on exposure to atmospheric humidity. Sikaflex®-508 meets the most severe environment, health and safety standards and sets a new benchmark in this technology.  

  • Very low emission
  • Compatible with foamed polysterene (XPS)
  • Bonds well to a wide variety of substrates without the need for special pre-treatments
  • Easy to process
  • Low odour
  • Isocyanate, phthalate, plasticiser, solvent and PVC free