Nadcap Certified Anodizing

Aluminum Anodizing

Unlike typical electroplating, anodizing reverses the polarity of the plating tank making the production part of the actual anode. Using a variety of different acid solutions, which create different anodic coatings, we have the ability to meet stringent criteria for corrosion protection and electrical conductivity. We offer chromic acid, sulfuric acid and the Boeing patented boric-sulfuric acid anodizing processes with a number of different sealing solutions.

Boric-Sulfuric Acid Anodize (BSAA)

MIL-A-8625, Type IC
Boeing: BAC 5632

Boric-Sulfuric Acid Anodize was developed by Boeing Aircraft as a replacement for Chromic Acid Anodize for environmental reasons. Unlike traditional sulfuric acid anodize, the coating is very thin, comparable to the chromic acid it is replacing. Wolkerstorfer Company is a licensed applicator of this coating which meets MIL-A-8625, Type IC and Boeing’s BAC 5632. We are capable of processing parts up to 10 feet in length and 2,000 pounds. We are Nadcap certified for this process.

Chromic Acid Anodize (CAA)

AMS 2470
MIL-A-8625, Type I and IB
Gulfstream: GAMPS 6201
Rockwell Collins: 580-0008
Sikorsky: SS 8483

Chromic Acid Anodize meets the requirements of Mil-A-8625, Type I and IB, as well as AMS 2470. Although CAA has a very thin coating deposit, it still provides excellent corrosion protection when compared to the other anodize coating systems. CAA also provides an exceptional pretreatment for various paint systems. We are capable of handling parts up to 8 feet in length and 2,000#. We are Nadcap certified for this process.

Sulfuric Acid Anodize (SAA)

AMS 2471
MIL-A-8625, Type II and IIB
Rockwell Collins: 580-0008
Sikorsky: SS 8483

Sulfuric Acid Anodize is a coating that provides better abrasion resistance than the other typical anodize systems, with the exception of hardcoat. Meeting Mil-A-8625, Type II and IIB, SAA provides an excellent pretreatment for various paint and dry film systems. We are capable of handling parts up to 8 feet in length and 2,000# in weight. We are Nadcap certified for this process.

Post Anodize Seals

At the completion of the anodize process there are a number of seal options to consider. A fresh anodized surface is an anhydrous oxide that is hydrophilic, or simply put a coating looking to be wetted. Wetting can occur through immersion but also from the moisture in the air, hence the reason to move quickly with the fresh anodize surface. Typically a “sealing” process is called out on the print or specification. Each coating has certain favorable traits, depending on the type of anodize system used. We offer nickel acetate, hot water and dilute chromic acid seal systems to meet a variety of aerospace and military specifications.

The “Wolkerstorfer Way” – Exceptional quality with responsive lead times.