Buy 3M’s Scotch-Weld DP-8005 or Lord Corporation’s 7540-AB glue from a home improvement store. These are the only types of glue that have been shown to work well with Starboard.
Mix the glue as directed on the package until the mixture is a consistent color. Insert the glue into the dispensing gun that came with the glue.
Apply a thin layer of glue evenly over the area of the Starboard that you want to glue. Spread it out with a putty knife until the entire area is covered.
Use a spring clamp to secure the two surfaces together. Secure it tight, but not so tight that the glue pushes out sideways.
Keep the clamp on for six hours until the glue has had a chance to dry. Then wait another 24 hours before putting any force on the two surfaces.