Sika Sikaflex-221 Sealant, 10.3 oz White

Achieve robust and lasting bonds and seals with Sika Sikaflex-221, a high-quality, multi-purpose polyurethane sealant and adhesive. This versatile, non-sag formula cures on exposure to atmospheric humidity, forming a durable, elastic elastomer ideal for a wide array of internal sealing and general bonding applications. Trusted in industries like RV and bus manufacturing, Sikaflex-221 delivers reliable performance against aging and weathering. Elevate your projects with a professional-grade sealant designed for endurance and versatility.

Key Features & Benefits:

• Versatile Polyurethane Formulation: As a single-component, non-sag polyurethane, it simplifies application while delivering high-strength, permanent elastic seals.
• Superior Adhesion: Bonds securely to an extensive range of substrates, including wood, various metals, metal primers, paint coatings (2-c systems), ceramics, and plastics.
• Exceptional Durability: Engineered to be highly elastic and robust, it offers superior resistance to aging and weathering, ensuring long-term integrity.
• Non-Corrosive & Low Odor: Its non-corrosive properties protect sensitive materials, while a low-odor formulation enhances working conditions.
• Paintable & Sandable: Allows for seamless integration into finished projects, as it can be sanded and overpainted after curing.
• Certified for Safety: NSF-registered for Proprietary Substances and Nonfood Compounds, and UL listed for potable water applications (for black, grey, and white variants), ensuring compliance and peace of mind.
• Wide Service Temperature Range: Maintains performance across a broad spectrum of temperatures, from -50°C to 90°C (-58°F to 194°F), suitable for diverse environments.
• High Elasticity: Features an elongation at break of 500% and Shore A hardness of 40, providing excellent flexibility and resistance to movement.

Recommended Applications: Ideal for creating permanent elastic seals and strong bonds in various construction, marine, and vehicle manufacturing applications, including sealing joints in truck, trailer, RV, and bus bodies.