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Sikaflex 221 Multi-Purpose Adhesive and Sealant Drum
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Sikaflex 221 Multi-Purpose Adhesive and Sealant Drum
Sikaflex 221 Multi-Purpose Adhesive and Sealant Drum Overview
Sikaflex 221 is a one-component polyurethane adhesive and sealant designed for creating durable, elastic seals across a variety of substrates, including metals, ceramics, and plastics. This moisture-curing sealant offers excellent adhesion without the need for priming, making it ideal for large-scale sealing and bonding applications. Available in a 50-gallon drum, it’s perfect for industrial projects or high-volume use where bulk packaging is essential. Certified under NSF/ANSI/CAN 61 for drinking water system components and NSF Proprietary Substances and Nonfood Compounds, Sikaflex 221 ensures reliable performance for demanding environments. Its low-odor, non-corrosive formulation makes it safe for use in confined spaces and ensures long-lasting performance.
Sikaflex 221 Features and Benefits
- Versatile Adhesion: Bonds well to metals, ceramics, plastics, and paint coatings.
- Certified for Drinking Water Systems: NSF/ANSI/CAN 61 listed (aluminum gray, black, white).
- NSF Listed for Nonfood Compounds: Approved for sensitive applications.
- Non-Corrosive and Low Odor: Safe for use in confined or enclosed spaces.
- Aging-Resistant: Provides long-lasting durability in challenging conditions.
- Paintable and Sandable: Achieves a professional finish.
Specifications
- Series: Sikaflex 221
- Chemistry: One-Component Polyurethane
- Application: General Sealing and Bonding
- Substrates: Metals, Metal Primers and Paint Coatings (2-Component Systems), Ceramic Materials, and Plastics
- Color: Aluminum Gray, Black, and White
- Cure Mechanism: Moisture-Curing
- Package Size: 50 Gallon Drum
- Density (Uncured): 10.8 lb/gal (1.3 kg/l)
- Application Temperature: 41°F to 104°F (5°C to 40°C)
- Skin Time: 60 Minutes
- Open Time: 45 Minutes
- Curing Speed: See Diagram on TDS
- Shrinkage: 5%
- Shore A Hardness: 40
- Tensile Strength: 260 psi (1.8 MPa)
- Elongation at Break: 500%
- Tear Propagation Resistance: 40 pli (7 N/mm)
- Service Temperature: -58°F to 194°F (-50°C to 90°C)
- 24 Hours: 248°F (120C)
- 1 Hour: 284°F (140C)
- Shelf Life: 6 Months
- Storage Temperature: Below 77°F (25°C) - Protect from Direct Sun Light
Other Package Sizes Available
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