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)
- Low odor