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You can choose from a variety of plating processes to meet your needs. We are proud of our ability to meet challenging specs, so don’t hesitate to call on us when you have a demanding application or require custom work.

Plated Brackets

Plated Parts

Plated Parts

Finishes we provide:
Note: We run only RoHS-compliant hexavalent -free chromates

Rack – parts individually placed prior to plating for special care and handling
  • Zinc/chloride zinc
  • Zinc phosphate (dry and oil)
  • Black oxide

Barrel – generally for high-volume parts that can be tumbled together
  • Zinc/chloride zinc
    Trivalent chromates – clear, black, and yellow (high corrosion chromates
    available on request)
  • Zinc cobalt
    Trivalent chromates – clear, black, and yellow (high corrosion chromates
    available on request)
  • Zinc phosphate (dry and oil)
  • Black oxide

Special treatments

  • Bake – for hydrogen embrittlement relief
  • Passivation – to prevent rusting of stainless steel parts
  • Pickle and Oil – to remove scale and rust

Other special processes available on request. Some minimums or lot charges apply. Please contact us for a prompt quote.

Focus on environmental compliance

Everyone in our operation understands the importance of meeting environmental regulations. Our processes do not generate any regulated hazardous waste, and our state-of-the-art wastewater treatment system, installed in 2008, helps us closely monitor our water usage. We have had no wastewater excursions since it was put in place, and work diligently to keep it that way.

Need help selecting the right finish?

We are here to help. Answer these questions, then call us at 815-965-9655.

  • How big is your product? Know its dimensions.
  • How much does it weigh?
  • What does it look like? Smooth? Ridged?
  • What did it take to make the part?
  • What other processes has it been through? (Prior to plating, was it heat treated, shot blasted, etc.)
  • What will its end use be?

Unless otherwise specified by the customer, our parts are plated to the requirements of the ASTM B633 plating specification.


“I have had a solid work history with K & J Finishing (formerly Northern Illinois Metal Finishing) for nine years. Their employees are very dedicated to quality and delivery. I cannot even begin to count the number of times they have turned our parts around overnight, with minimal notice, so we could meet our customer’s demand.”

Roberta Perkins
Quality Assurance Manager
North American Fabrication Co. (NAFCO)

Plated Products