3M™ Scotch-Weld™ Structural Adhesive Film AF 191 encompasses a family of thermosetting modified epoxy adhesives in film form that provide long-term durability and meet specific challenges for metal and composite solid panel and honeycomb sandwich construction, where high fracture toughness and peel strength is required.
3M™ Scotch-Weld™ Structural Adhesive Film AF 191 provides excellent performance with easy-to-use shop handling properties. These adhesive films are available in a variety of weights and carriers to meet a range of needs without imposing excess material costs. With high fracture toughness and peel strength, this product provides a reliable, long-term bond suitable for composites, metals in solid panel and honeycomb sandwich fabrication. In addition, 3M™ Scotch-Weld™ Structural Adhesive Film AF 191 exhibits excellent pre-bond humidity performance on composite substrates.