A great silver soldering paste that is ideal for precise soldering on rope chains, hollow shells, findings, metals, earring posts, and more. When a smaller amount is needed, this is a convenient economical alternative. Cadmium-free. Flow point: 1450°F. Melting point: 1365°F. Hard (SS75). How to use: 1) Prepare the joint by removing all oil, grease, polishing compound and excessive oxides from the joint area. 2) Joint clearance (gap) should be as small as possible. The joint should be flat, smooth and free of burrs. The two pieces being soldered should touch, as paste solder will not fill large gaps. solder paste 3) Apply paste to the top of joint. (To prevent excess flow of solder from the needle after applying solder to the joint, pull back on the hand plunger to relieve pressure.) 4) Apply heat to article away from the joint, moving the torch from side to side across the joint to avoid overheating the solder. Allow the piece to heat the paste solder. Do not directly heat the paste solder. (This will cause the paste to “slump” and move away from the joint.) As binder “burns off” and the paste dries you will see the flux spread around the solder. Now move the flame in on the joint area continuing to move the torch from side to side. 5) Remove the flame immediately after solder flows. 6) Pickle with Sparex