Description
Product Data Sheet
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.
Product Benefits
- 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
Areas of Application
- Sikaflex®-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals . Suitable substrate materials are metals, metal primers and paint coatings (2-component systems), ceramic materials and plastics. It is ideally used for internal sealing and simple bonding applications.
- Seek manufacturer’s advice and perform tests on original substrates before using Sikaflex®221 on materials prone to stress cracking. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility
