Trutemplowtemperaturenonpollutingblackoxide 10058230

Sprockets, universal joints, sheaves and power transmission components take on a protective and attractive black oxide finish when treated with TRU TEMP low temperature, non-polluting black oxide from Birchwood Technologies Metal Finishes.

  • Adds lubricity and a non-dimensional, deep black finish with long-term corrosion resistance
  • Satin black magnetite coating is 0.5 microns thick (20 millionths) with no effect on material hardness or tensile strength
  • Finish withstands up to 100-200 hours of neutral salt spray (ASTM B 117) or several hundred hours of humidity (ASTM D 1748)
  • Operates at 200 F and uses mild alkaline chemistry that does not embrittle the steel
  • Total processing time, 25 minutes
  • Operating cost (including chemical and heating cost) averages $0.01 to 0.03 per pound of finished work
  • Contain no EPA regulated chemicals
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