Sikaflex - 221 Adhesive – Black
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Sikaflex-221 is a high-quality, multi-purpose polyurethane adhesive and sealant that cures upon exposure to atmospheric humidity. Ideal for internal sealing and simple bonding applications, it adheres well to metals, paint coatings, ceramics, and plastics. This black 300ml cartridge offers excellent aging resistance, can be overpainted and sanded, and is NSF-approved for incidental food contact.
add_circle The Upside
- check Strong adhesion to a wide variety of substrates
- check Low odor and non-corrosive
- check Versatile for both sealing and bonding
remove_circle The Downside
- close Requires humidity for curing, may be slower in dry conditions
- close Not suitable for structural bonding
- close Limited to internal applications
Specifications & features
Key features
- check_circle Multi-purpose 1-component polyurethane adhesive/sealant
- check_circle Cures with atmospheric humidity
- check_circle Bonds well to metals, ceramics, plastics, and painted surfaces
- check_circle Can be overpainted and sanded
- check_circle NSF-approved for incidental food contact
Specifications
Color
Black
Cure Method
Atmospheric humidity
NSF Approval
Incidental food contact
Type
1-component polyurethane
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