SKU: CW67318
UPC: 338860051048
MPN: 90892
The Sika Sikaflex® 221 Multi-Purpose Polyurethane Sealant/Adhesive is a professional-grade bonding and sealing compound designed for demanding environments. This 10.3oz cartridge is suitable for tactical operators, military personnel, and equipment manufacturers, providing reliable adhesion across various substrates such as metal, rubber, and composite materials.
With its polyurethane chemistry, Sikaflex® 221 offers exceptional tensile strength while maintaining flexibility, making it ideal for applications exposed to vibration and temperature fluctuations. The aluminum gray color allows it to blend well with anodized metal components, minimizing aesthetic impact on finished gear. It cures to a resilient elastomer that resists water, oil, fuel, and most solvents.
This sealant is essential for armorer operations, equipment custodians, and field technicians maintaining carbines, optics mounts, rail systems, and accessory interfaces. It is versatile for adhesive bonding, gap-filling, and sealing applications, making it a valuable tool for vehicle maintenance and gear assembly.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.