Loctite 3621 surface mount adhesive is designed for the bonding of surface mounted devices to printed circuit boards prior to wave soldering. Particularly suited for applications where very high-dispense speeds, high-dot profile, high-wet strength and good electrical characteristics are required. - Particularly suited where dispense speeds greater than 35000 dots/hr are required. Loctite 3621 has been used successfully in lead free processes with water and alcohol based fluxes.