COMPOSITE POWDER CONSISTING OF A GRAPHITE CORE CLAD WITH PURE NICKEL SHELL. PRODUCES CLEARANCE CONTROL COATINGS SUITABLE FOR USE IN THE COMPRESSOR SECTIONS OF AIRCRAFT JET ENGINES. USEFUL TO 900 DEGREES FARENHEIT; NORMALLY SPRAYED UTILIZING OXY-ACETYLENE EQUIPMENT; READILY FINISHED WITH HIGH SPEED STEEL OR CARBIDE TOOLS; CERTIFICATION: PWA 1352-1