Sikaflex 221

Sikaflex-221 is a high-quality multi-purpose 1-component polyurethane adhesive / sealant that cures on exposure to atmospheric humidity. It is suitable for internal sealing and simple bonding applications.

• Bonds well to a wide variety of substrates
• Resistant to ageing
• Can be painted
• Can be sanded
• Non-corrosive
• Low odour
• NSF-approved for incidental food contact