Self fluxing type alloys which melts at low temperature and fuse with the substrate. Mostly Nickel, Chromium and Boron based.
This process is normally for thin coating say upto 1mm.
However, by taking special precaution coating upto 2mm thickness can be produced.
All ferrous metals and weldable steels as well as some non-ferrous parts can be coated. Apart from reclaiming worn parts it can be used to apply coating on new component to withstand particular service condition i.e. Wear resistance or resistance to abrasion, hear or corrosion. In fact, inferior metal can be used as base and overlaid by coating of special alloy metal which ultimately saves cost also.
