Multi-purpose adhesive sealant with a wide adhesion range

4.5 (2117)

Sikaflex®-221 is a multi-purpose 1-component polyurethane adhesive / sealant that bonds well to a wide variety of substrates like metals, metal primers and paint coatings (2-component systems), ceramic materials and plastics. It is suitable for making permanent elastic seals.  

  • Bonds well to a wide variety of substrates
  • Resistant to aging
  • Can be sanded and painted
  • Listed under NSF/ANSI/CAN 61 ─ Drinking Water System Components (aluminum gray, black, and white)
  • Listed under NSF ─ Proprietary Substances and Nonfood Compounds (aluminum gray, black, and white)
  • Non-corrosive
  • Low odor