Lincoln W000400068 OP 10U Submerged Arc (SAW) Flux – 25 kg Bag (25 ?) Women's Jackets Outdoor and field welding: No Select Your Head:WITH STEEL WHEEL HEAD 3900SWH Outdoor and field welding: No gas cylinder required — NR 211 MP was specifically engineered for wind affected job sites and fieldwork where shielding gas would be blown away or handling a cylinder is impractical LINCOLNWELD 801 Submerged Arc flux is designed for Fast freezing OP 10U is a very fine grained agglomerated flux for use as the backing medium in the single sided welding process Damp flux should be re dried at 300 350°C Grain size according to EN ISO 14174: 1 12