The C6A coating, water soluble modified phenolic resin equivalent to C6 of AISI, provides ridge free thick coating and therefore increases surface insulation resistivity. Inorganic fillers are added to increase the insulating ability of the coating. It has good punchability & withstands high temperature “ burn off “ treatments used during rebuilding of motors. This coating exhibits low shrinkage (compressibility) and has excellent thermal coefficient of expansion due to high pigment concentration. This coating cannot with stand stress relieve annealing. |