Oerlikon Ferromatic 160 description: FERROMATIC 160 is a thick rutile coated high-efficiency MMA electrode. The addition of iron powder and ferroalloys leads to a recovery of 160 % allowing longer or wider beads to be welded in one run with increased welding speed. Welding of butt and fillet joints. Applications in shipbuilding, general metal construction and in the construction of tanks, containers and boilers in downhand position.