flex-221, Black, Multi-Purpose Polyurethane Sealant & Adhesive, Permanent Elastic Seal, Sandable/Paintable, NSF Approved for Drinking Water, 10.1 (Pack of 24)

Versatility and Quality in One - Often referred to as 221 black, this single-component urethane caulk adheres to various substrates, such as metals, plastics, and metal primers and coatings. Age Resistant - Engineered to withstand the impacts of aging, maintaining optimal performance under diverse conditions. It also resists exposure to elements like seawater, diluted acids, and caustic solutions. Ready to Use - The black sealant is supplied in a convenient cartridge designed for use with an electric, pneumatic, or manual application gun, enabling quick and precise placement of the adhesive paste. Safe and Effective - Certified by the NSF for applications in both drinking water systems and food production operations. Ideal for Internal Seals and Bonding - Suitable for creating dependable, permanent seals. The paste also adheres to ceramic materials and cures rapidly when exposed to atmospheric moisture