solder flux Home › Forums › Public Forums › General Plumbing › solder flux This topic has 1 reply, 2 voices, and was last updated 22 years ago by NickHydro. Viewing 1 reply thread Author Posts 4 Sep 2002 at 1:43 am #275757 MasterPlumbersKeymaster I am soldering copper pipes and fittings. If I get too much flux on the pipe or fittings, does the flux go inside the pipe or burn off. If the flux is inside the pipe, do I need to flush the pipe for a long time to remove the excess flux? thanx for the help 4 Sep 2002 at 7:48 am #292835 NickHydroParticipant It boil off an then yuo tase it for weeks wen yu get the pips hooked up. Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In