Since 1959, Electro-Chem Metal Finishing, Inc in Portland, OR has been an industry leader in providing high quality finishes on aluminum. We offer attractive and protective coatings on aluminum surfaces. Electro-Chem has a very comprehensive range of racking techniques giving us the ability to handle everything from tiny components to parts up to 20 ft. in length in some finishes.
Anodizing is a very versatile, useful option for protecting aluminum. The Aluminum Anodizing Council describes Anodizing as follows.
As an alternative to anodizing, Electro-Chem also offers various chromate conversion coatings. Chromate conversion coatings provide corrosion-resistance to aluminum while retaining electrical conductivity. Chromate conversion coatings are also used as a base to allow better paint adhesion. Chromate conversion coatings do lack the durability of anodized finishes.
According to AMS/MIL-A-8625 Type II (Class 1 or Class 2) or ASTM B 580 (B, C, D, or E)
High corrosion, abrasion, and electrical resistance. - RoHS Compliant - AMS 2471 or AMS 2472
NOTE: All anodized parts are nickel acetate sealed, unless “no seal” is requested.
According to AMS/MIL-DTL-5541
Corrosion protection and paint adhesion with good electrical conductivity, but with low abrasion resistance.
Hexavalent Chromium (Chrome VI) Conversion Coatings (Type I)
: According to ASTM B 449, AMS 2473 or AMS 2477
Trivalent Chromium (TCP) Conversion Coating (Type II)
- RoHS, WEEE and ELV Compliant - According to ASTM B 921 (Maximum length = 12’)
To learn more about our RoHS compliant coatings, certifications and additional services