Coating Systems with

August 10, 2005

Coating Systems with
Improved Stain Resistance
l Patent No. U.S. 6,503,290
Praxair S.T. Technology, Inc. has received a patent for a corrosion-resistant powder useful for deposition through thermal spray devices, the powder consisting essentially of about 30% to 50% tungsten, about 30% to 50% chromium, about 1.5% to five percent carbon, a total of about ten to 30% cobalt plus nickel and incidental impurities and zero to three percent melting point suppressants