Electro Color Anodizing

(35-40 Year Guarantee)

We are engaged in providing the Electro Color Anodizing service that is an electrolytic process of coating aluminium with controlled aluminium oxide. Aluminium oxide posses excellent electrical and thermal insulation qualities and produces a coating that is much harder, uniform and denser. The anodizing enchances the natural metallic shine and full proff adhesion so that the finish is not peeled or chipped. Backed by our quality controllers, we are able to undertake stringent quality control measures.

Our quality tests ensure aesthetic value and excellent exterior durability as follows:

  • Batch to Batch manual checking for shade variation.
  • Sealing Test: Oil stain test, Ink stain test.
  • Anodic coating thickness test using digital micron testing meter.

Anodizing Process

Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts.The process is called "anodizing" because the part to be treated forms the anode electrode of an electrical circuit. Anodizing increases corrosion resistance and wear resistance, and provides better adhesion for paint primers and glues than does bare metal. Anodic films can also be used for a number of cosmetic effects, either with thick porous coatings that can absorb dyes or with thin transparent coatings that add interference effects to reflected light.

Anodizing is also used to prevent galling of threaded components and to make dielectric films for electrolytic capacitors. Anodic films are most commonly applied to protect aluminium alloys, although processes also exist for titanium, zinc, magnesium, niobium, zirconium, hafnium, and tantalum. Iron or carbon steel metal exfoliates when oxidized under neutral or alkaline microelectrolytic conditions; i.e., the iron oxide (actually "ferric hydroxide" or hydrated iron oxide, also known as rust) forms by anoxic anodic pits and large cathodic surface, these pits concentrate anions such as sulfate and chloride accelerating the underlying metal to corrosion. Carbon flakes or nodules in iron or steel with high carbon content (high carbon steel, cast iron) may cause an electrolytic potential and interfere with coating or plating. Ferrous metals are commonly anodized electrolytically in nitric acid, or by treatment with red fuming nitric acid, to form hard black ferric oxide. This oxide remains conformal even when plated on wire and the wire is bent.

Anodization changes the microscopic texture of the surface and changes the crystal structure of the metal near the surface. Thick coatings are normally porous, so a sealing process is often needed to achieve corrosion resistance. Anodized aluminium surfaces, for example, are harder than aluminium but have low to moderate wear resistance that can be improved with increasing thickness or by applying suitable sealing substances. Anodic films are generally much stronger and more adherent than most types of paint and metal plating, but also more brittle. This makes them less likely to crack and peel from aging and wear, but more susceptible to cracking from thermal stress.

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