Solder wire 40/60 The Sn/Pb composition little to strong insulation, No spattering resistance, Features great and is, Soldering capabilities free from corrosive properties composition is 40/60 featuring a blend of tin (Sn) and lead (Pb), This the type of wire utilized for soldering is extensively employed in electrical applications and for connecting electronic electronic equipment, Parts Circuitry, And additional items. Use RMA or flux core solder wire for standard soldering tasks in the electrical & electronics industries. Pack sizes, 10g, 40g, 50g, 100g, 250g 500gm swg, 20/22 features instant wetting behavior high mobility, Fast, Spreading action of this change brings about in more reliable production line soldering. Rosin core solder minimum resistance no additional flux or paste is required no dry solder features a melting point that is relatively low widely applied in repairs works creates less smoke and odor excellent manufacturing consistency and uniform quality.