1 Proteus 1 month ago Apparently, under 2 ounces.It's a homely thing, this 2.5"-diameter tin of soldering flux. I bought it from a bin at an old oiled-wood-floor hardware store in Athens, Ohio, probably sometime in 1978. I doubt the hardware store is still there, but this can has been with me ever since.I don't know how many solder joints I've made with it - certainly thousands. I built any number of PAIA kits and made every cable, every old telco patchbay connection in the recording studio I built with partners in the early 80s. And this cheerful little puck-o-flux has provided the sizzle and the greasy smoke for hundreds of patch cables, guitar cords, guitar rewires, and miscellaneous household and automotive repairs.