Sure-Stix is a premium bonding adhesive which strongly adheres the ear skin to the liner, preventing drumming and distortion. Clean skin in the usual manner, rough liner, and apply Sure-Stix to the liner. Insert liner, squeeze out the air and align the edges, and allow to dry. Sure-Stix begins to bond in 1-2 hours. No more rushing with messy two-part epoxies. Best of all, no more drumming.