FLEXI-WELD 520-T is a two-component, moisture insensitive, high strength 100% solids epoxy adhesive for general purpose bonding to a wide variety of substrates, including stone, masonry and dry or damp concrete. A-Paks are the ideal way to handle small jobs, or jobs requiring only small amounts of adhesive at one time. The premeasured two components are packaged in a plastic pouch, separated by a divider. To use, simply slip off the divider and squeeze the pouch to mix the components. Then cut open a corner to dispense. Packages of 8. Each A-Pak contains sufficient adhesive for a bead of adhesive approximately 36" in length.