New for 2016: ECO is FFL (Federal Firearm Licensee)
ECO Finishing Company

Zinc Plating

Anodizing Aluminum

Nickel Plating

Electroless Nickel

Copper Plating


Black Oxide

Phosphate Coating

Hard Coat Anodization

Chemical Conversion Coatings

RoHS/REACH Compliance

Chemical Conversion Coatings at ECO Finishing

ECO Finishing provides Chemical Conversion coatings, a process that is intended specifically for components of military weapon systems to provide maximum corrosion resistance and is not intended as a general purpose coating for commercial and decorative applications. Our Chemical Conversion Coating processes are compliant with MIL-DTL-5541 F, which covers the requirements for two classes of coatings that are formed by the reaction of chemicals with the surfaces of aluminum and aluminum alloys.
  • Class IA Chemical Conversion Coatings are intended to provide corrosion prevention when left unpainted and to improve adhesion of paint finish systems on aluminum and aluminum alloys. May be used on tanks, tubing and component structures where paint finishes are required for the interior surfaces but not the exterior surfaces.
  • Class III Chemical Conversion Coatings are intended for use as a corrosion preventative film or in electrical and electronic applications where lower resistant contacts (relative to Class IA coatings and anodic coatings in accordance with MIL-A-8625) are required. Class III coatings are thinner and more susceptible to corrosion but will improve adhesion of paint systems on aluminum and aluminum alloys.
Further, there are two types of Chemical Conversion Coatings:
  • Type I containing hexavalent chromium
  • Type II containing no hexavalent chromium and are always clear
Chemical Conversion Coatings produce finishes that range in color from clear to iridescent yellow or brown.

With over 60,000 sq ft of clean, well lit space, ECO Finishing has a streamlined plating process that complies with all EPA regulations regarding safety and waste treatment.

Quality is at the heart of ECO Finishing. Each job is carefully monitored from its arrival through the entire plating process. Inspection of plated parts is enhanced by more than 100 foot candles of light throughout the entire plant. Electroplating thickness measurements are verified with X-ray fluorescence and our quality system conforms to military specifications as outlined in MIL-Q-45208. ECO uses Statistical Process Control (SPC) to assure that our product meets exacting industry standards.

ECO Finishing has the fastest lead time of any metal finishing company in Minnesota. We can process within hours, within a day or on your schedule. Our average turn time is two to three days. Our goal is to support our customers as they grow their business by beating their competition.

At ECO Finishing, we believe that our job is to make your life easier! We specialize in Just in Time (JIT) deliveries and fast turnaround orders. We are known by our customers for our commitment and dedication to quality. ECO has the history, experience and professionalism to be sure to make your job easier. Contact ECO Finishing today for Chemical Conversion Coatings at (763) 574-1000.