BEST Solder Paste BST-706, Lead-free, 10cc Rosin flux is used to facilitate soldering. It cleans and prevents metal oxidation which allows solder to create strong, long lasting mechanical and electrical bonds. It also acts as a wetting agent, increasing the flow of solder and the efficiency of the soldering process. Perfect for mobile phones, PC cards and other sophisticated electronic chip-level flux welding. Τεχνικά χαρακτηριστικά: M.P: 138°C Sn: 99% Ag: 0.3% Cu: 0.7% volume: 10cc