DYNAFLUX MIG WELDING NOZZLE GEL CONTACT TIP DIP - 16OZ Nozzle Gel Petroleum Based Nozzle Gel - 16OZ Provides excellent protection against weld spatter build-up on M.I.G. gun nozzles, contact tips, positioners, stud welding chucks and electrode holders on all automatic and semi-automatic welding apparatus. Will not cause porosity. Blue in color.