Phos Copper Solder Paste 0.5 ozt. - SFC Tools - SOL-825-CP Solder pastes allow for precise application when used in soldering chain, findings, earring posts and other intricate elements. The paste comes in a 10cc dispensing syringe containing a blend of micro fine spherical solder powder, flux, and binder Net weight is0.5 ozt. (10 dwt or 15.5 g). This solder is cadmium, indium, and antimony free Made in the USA