ITEM NAME:50g CMT Solid Rosin Welding Soldering Flux Paste High-purity Repair Durabil J2M7 100% new high quality 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. Color as shown Uses:The solder paste is easy to carry and easy to use. The paste is strong and durable, easy to solder, quick to clean, good in insulation and good in acidity. Suitable for general instrumentation, copper, tin, welding. Packing: 1*solid Paste.Rosin flux is used to facilitate soldering. It also acts as a wetting agent, increasing the flow of solder and the efficiency of the soldering process. Uses:The solder paste is easy to carry and easy to use.