Black Oxide PDF Print E-mail
Written by Matthew Pinto   
Tuesday, 08 February 2011 10:53

Black oxide or blackening is a conversion coating for ferrous materials, copper and copper based alloys,zinc, powdered metals and silver solder.  It is used to add mild corrosion resistance and for appearance.   One of its advantages over other coatings is its minimal buildup.


There are many advantages of Black Oxide, mainly:
  • blackening can be done in large batches (ideal for small bolts)
  • zero dimensional impact (the blacking process creates a layer about a micrometer thick)
  • it is far cheaper than similar corrosion protection systems, such as paint and electroplating

The result of the process is an attractive but very thin and marginally corrosion-resistant, dark black iron oxide finish. This black finish is familiar as it is seen in gears and sprockets, some brands of spark plugs, and socket wrenches and other tools. It is also used on firearm components, such as rifle barrels.

Call Pinto Products Inc. for your black oxide finishing needs!


Last Updated on Tuesday, 15 February 2011 10:50
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2525 Miller Road
Kalamazoo, MI 49001
269-383-1603 fax

Case History -Stryker Corporation


Stryker Medical was looking to reduce warehouse and shipping cost on  a particular style of hospital bed. The beds were stored horizontally in the warehouse prior to shipping.  A wooden footer and header was attached to the bed and it was raised vertically by crane and rested on the attached footer. The beds were then moved by crane into the trailer and secured for shipment.  This shipping method caused a number of problems including damage to the beds, wasted warehouse space and partial truckload shipments.  There had to be a better, more economical way to store and ship these beds, and Pinto Products Inc. created it!


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