AP 017-90892 Sikaflex 221 Aluminum Gray Multi-Purpose Sealant 10.3 Oz

The AP 017-90892 Sikaflex 221 is a high-quality, one-component polyurethane sealant designed for marine, RV, and automotive applications. This professional-grade adhesive sealant provides excellent adhesion to a wide variety of substrates including aluminum, painted surfaces, gelcoat, fiberglass, wood, and most plastics.

Key Features:

• Aluminum gray color for seamless integration with metal surfaces
• Excellent UV and weather resistance for long-lasting performance
• Permanently elastic joint movement capability of ±25%
• Non-corrosive formula safe for use on sensitive materials
• Excellent adhesion without primer on most common substrates
• Resistant to saltwater, making it ideal for marine environments
• 10.3 oz cartridge size fits standard caulking guns

Sikaflex 221 is ideal for sealing joints, seams, and hardware on boats, RVs, trailers, and vehicles. It cures to form a durable, watertight seal that remains flexible to accommodate expansion and contraction. The aluminum gray color provides a professional finish that blends well with metal components and painted surfaces.