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.Try 8342 for a rosin-based flux paste.For a liquid flux try 835 (rosin-based), 8351 (no-clean halogen-free), 836LFNC (no-clean lead-free), or 837LFWS, (lead-free water-soluble).