Tig Welding Rods CUPRON No 17 -2Ag 3.2mm x1kg TIG FILLER RODS Grade: SIF CUPRON No 17 -2Ag This copper phosphorus alloy rod with the addition of 2% silver to improve ductility and flowing characteristics. High resistance to corrosion and not object to dezincification. It is ideal for hot water cylinders. Electric motors and also general maintenance work.