contact glue 680 for foam materials: the powerful bonding strenth, wonderful quality, ... expires the guarantee period.. Usage Apply for large area bolding between materials as sponge, foam, fabric, leather, paper, plastic, ... glue coat of the two target surfaces, leave it for 1-5minutes, then press and bond.D. Specified ... glue on the surface, leave it to dry for 1-5minutes (or when the applied glue coat ...