A sterile gelatinous substance designed to be used during staple line buttress (reinforcement) procedures (e.g., lung/bronchus resections, bariatric and small bowel surgery). It is typically applied to the buttress strip material to facilitate rehydration and temporary adherence to the surgical stapler unit prior to the application of the staples and buttress strip to body tissue. It typically consists of a colloidal suspension (hydrogel) applied with an included applicator. This is a single-use device.