Bumper Replacements has been successfully electropolishing stainless steel for the last 20 years. We have developed highly successful techniques providing excellent results for a wide range of industries, including dairy, marine, food and beverage and automotive components.
Electropolishing of 300 series stainless steel leaves a highly polished, mirror like appearance that is smooth and provides a number of benefits:

• Sides and edges deburred
• Increased corrosion resistance
• Cost savings (40% - 75% cheaper than hand polishing)
• Contamination free

Manganese Phosphating (Parkerizing)

What is Parkerizing

Parkerizing or Manganese Phosphating is a metal surface finish which was used extensively during world war two by the US Government. At the time the Government was looking to replace the blued finish with a more durable finish.

Parkerizing is a phosphate etching process with the most popular being Manganese Phosphating which produces a anti reflective Black Satin Finish.

Parkerizing can only be used on mild steel or gun steel.

The Benefits of Parkerizing

• Is relative inexpensive compared to other forms of metal finishing.
• Permits the rapid breakin of moving parts without scuffing by preventing metal to metal contact between the bearing surfaces.
• Increased lubrication of treated surfaces due to the oil Absorptive coating.
• Retards corrosion
• Gives a complete uniform black satin finish removing any light metal scratches remaining from machining operatings

Feel free to call us about your Electropolishing Needs on 0800 BUMPER for both Christchurch and Auckland

Our network includes two branches and five agents throughout New Zealand.

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