Anodizing

Anodizing

Anodizing is a conversion of the aluminum surface to a thicker, corrosion-resistant aluminum oxide. This site-within-a-site covers everything from chromic and sulfuric acid anodizing to hard coat anodizing articles, suppliers and products. Check out our feature stories, tips from industry experts, and the latest in innovations from world-class suppliers.

Automated Selective Plating Takes Off With Safran Project

Sifco ASC has partnered with Safran on various surface finishing projects for more than 20 years, including recent work to increase wear resistance on an aircraft’s axles.

Remembering a Finisher’s Son

Metal finisher Fred Warmbier lost his son Otto to the brutal North Korean government after he was charged with a dubious crime and sentenced to hard labor.

Experts

Cathode Materials and Cathode/Anode Ratios

Q. Can we use titanium as a cathode in our Type I, II and III anodizing tanks, and what are the guidelines for cathode to anode surface area ratios?
Experts

“Snowflake” Corrosion on Anodized Aluminum Parts

Q. Our customer sent us some of its anodized aluminum extrusion samples that were exhibiting a condition that looked like small snowflakes all over the part. Is this is a metal condition, or something wrong in the anodizing process?
Featured Video

Sun Glo Industrial Plating Survives Trial by Fire

Andy Pozin’s more than three decades in the metal finishing industry nearly came to an end in 2015 when an overnight fire devastated his company and his livelihood.

INNOVATIONS

Chrome-Free Aerospace Sealant Features Lightweight, Corrosion-Inhibiting Properties

PPG offers a chrome-free aerospace sealant designed for aircraft manufacturers and maintenance, repair and overhaul shops requiring corrosion-inhibiting properties.

Dynamix Offers Full Range of Plating Chemicals

Dynamix is a specialty chemical manufacturer supplying a full range of chemicals for metal finishing from anodizing to zinc plating, including a complete product line for functional chrome plating.