8341 is a no clean soldering flux paste. It is designed for lead free alloys, but also works well with conventional leaded solders. This tacky no clean flux paste uses a mix of rosin, thickener, and high-grade synthetically refined resin. The flux provides fast and widespread wetting during soldering and leaves non-conductive and non-tacky residues. This solder flux paste is ideal for solder touch-ups, repairs, or reworks of surface mount assemblies.