Highly alkaline blend salts and surfactants for wrought alloys

Powder, immersion, highly alkaline blend salts and surfactants, non-phosphated, that provides versatility and controlled etching from fine grain to matte based on operating conditions designed for wrought alloys.

Features & Benefits

  •  Produces a fine matte finish, ideal for anodizing, chemical conversion coating painting or plating applications.
  • Effective in removing scale and oxide from aluminium that has been stored for a long period of time
  • Etches aluminium and removes general soils, cutting oils, and shop dirt all in the same bath to allow for improved production throughput.
  • Rarely needs to be dumped
  • With this improved formulation, the viscosity of matte etching bath is decreased and therefore drag- out losses are minimized while lowering the caustic soda drag out into the waste water treatment plant.

Este proceso pertenece aALUMAL ETCH SERIES

For certain applications and aluminium alloys, the surface etching can enhance the final finish of the part or component by providing a given aspect (matte, satin, etc.)

Etching is also important to help conceal surface defects such as die lines, scratches or in mixed alloy aluminium components, the etching process gives a uniform surface appearance.
Etching can be accomplished with both Acid or Caustic systems.  Each ALUMAL type are blended with special surfactants to minimize fuming, or to provide a foam blanket, and the chemistries contain anti-scaling agents to keep the tank, heating equipment and other process equipment working at optimum for high throughput.  Alkaline type etch systems will dissolve more aluminium and leave behind typically more smut. Acid etch type systems tend to smut less because they dissolve both aluminium and alloy constituents at more of an equal rate. In both cases, ALUMAL Deoxidizing / Desmutting chemistries are designed to provide the proper surface conditions for subsequent processing.


Sometimes Etch systems and Etch cleaners require some modifications to enhance their performance.  The following products are available and when added to ALUMAL Cleaners, ETCH-Cleaners or ETCHES as required, they improve system performance.

ALUMAL ETCH 214 – Liquid, immersion, addition agent for alkaline cleaners and alkaline etching systems to minimize the precipitation of alumina for extending the solution life.  Also used in rack/jig stripping applications.

ALUMAL ETCH AB 212 – Liquid, immersion or spray, addition agent blend of surfactants to improve cleaning efficiency of alkaline etching or alkaline etch clean systems.

ALUMAL ETCH AB 213 – Liquid, immersion or spray, addition agent blend of surfactants and complexing agents to improve cleaning efficiency and stability of alkaline etching systems. For use with caustic soda.

ALUMAL ETCH AB 220 – Liquid, immersion, Surfactant system to provide foam blanket to reduce caustic soda fumes from alkaline etching systems, rack stripping solutions and anodizing solutions.


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