Anodizing Characteristics

Anodizing - The Optimum Finish for Architectural Aluminum

Anodizing is an electrochemical process that increases the thickness of a passive, naturally occurring, protective aluminum oxide film.


  • Anodizing is a reacted, not an applied finish that is integrated with the underlying aluminum for total bonding and unmatched adhesion.
  • It is non-selective process and protects all exposed andunexposed surfaces.
  • An anodized finish is a uniformly thick, ceramic-like, transparent coating that does not hide defects or potential problems.
  • Sapphire hard with superior resistance to abrasion andscratching.
  • Scars and wear from fabrication, handling, installation, graffiti, and frequent usage are virtually non-existent.
  • Harder, smoother surfaces mean less friction, easier movement, and extended hardware and weather-strip life in operating components.
  • Anodized surfaces like other adjacent or surrounding materials, are unaffected by acidic cleaning solutions or misplaced mortar when properly protected or timely and thoroughly rinsed.

Lower Cost

  • Lower initial finishing cost.
  • Lower life cycle cost for long-term value.
  • No special mixing or set-up is required. Delays and added costs are minimized.
  • Strippable - can be replaced with an alternate color. Reduced inventory and added flexibility lead to more savings.
  • A bright anodized finish does not tarnish or require lacquer coatings.
  • Sealant compatible – no special priming required.

Color Aesthetics

  • A constantly increasing number of true, deep metallic architectural exterior colors are available.
  • Anodizing’s intrinsic clarity highlights the natural beauty of the underlying aluminum.
  • Improved technology minimizes or eliminates significant color variation associated with earlier processes.
  • Buffing and brightening before anodizing eliminates tarnishing and the need for protective lacquer coatings. Color Stability

Color Stability

  • Anodic coatings are inorganic and unaffected by ultraviolet rays.
  • Do not chalk, chip, peel or fade.
  • Deep cuts or gouges do not propagate.
  • Colors are repeatable to match for future replacement or additions.