Ideal for precise soldering on rope chain, hollow shells, findings, earrings posts and more 10cc syringe that contains solder powder, flux and binder Cadmium free 1/2 ounce of 70 silver, medium, solder paste Flows at 1360 degrees Fahrenheit and melts at 1275 degrees Fahrenheit Solder pastes allow for precise application when used in soldering rope chain, hollow shells, findings, earring posts and other intricate jewelry designs. Convenient 10cc dispensing syringes contain a blend of solder powder, flux and binder. Exact amount required can be used eliminating waste and improving the appearance of the joint area. This silver solder paste, 70, is cadmium free, 1/2 oz.