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  • Non-chromated Conversion Coating for Magnesium Alloys and Zinc-Nickel Plated Steel
    A novel hexavalent chromate-free conversion coating was developed to improve anti-corrosion and adhesive-bonding characteristics of the magnesium alloys and zinc-nickel (Zn-Ni) plated steel substrates. The corrosion behavior of the coated and uncoated alloys was investigated by neutral salt fog
  • Coatings for Custom Heat Exchangers and Cold Plates
    widely used coating options is chemical conversion coating or chromate conversion coating, also known as "Chem Film" or alodine. Conversion coating helps to minimize surface oxidation and is often specified for military as well as commercial heat exchangers and cold plates. It also sometimes serves
  • CHEMEON Pretreatment & Conversion Coating for Magnesium Alloys
    A new pretreatment and a non-chromated conversion coating were developed as a replacement to conventional hexavalent chromium based conversion coatings for magnesium alloys. Neutral Salt Fog tests revealed that CHEMEON pretreated Magnesium performed similar to hexavalent chromated test coupons
  • Trivalent Chromium Process (TCP) as a dealer for MIL-A-8625F Type II, IIB, and IC Anodic Coatings
    This report documents evaluations of trivalent chromium compositions (TCP) as sealers for MIL-A-8625F Type II, IIB, and IC anodic coatings conducted from March 2001 through December 2007 by Materials Engineering, AIR-4.3.4, at NAWCAD Patuxent River, Maryland, and the In-Service Support Center
  • Guidelines for Cleaning Stamped Metal Parts
    One of the most critical operation in the metalforming process is the preparation of the formed metal part for a finishing operation. Whether the plate is to be plated, painted, chromated, or E-coated (electrostatically applied coating), the quality of the final finish depends on the effort

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