Solder pastes allow for precise application when used in soldering chain, findings, earring posts and other intricate elements. Using solder paste eliminates waste and improves the appearance of your solder joint. The paste comes in a 5cc dispensing syringe containing a blend of micro fine spherical solder powder, flux, and binder. Not for use on aluminum, pewter, zinc, or pot metal. This solder is cadmium, indium, and antimony free. Net weight is 0.25 ozt. (5 dwt or 7.7 g). Flow Point: 1360F (738C), Melt Point: 1275F (690C). Made in the USA