the former Gold Etchant or Au Etch

General Information

TechniEtch™ACI2 is a highly effective & selective gold stripper. TechniEtch™ACI2 is an Iodine based Gold etchant, containing
particular additives that greatly enhance stability and metal loading
capability compared to conventional I2/I3 - based solutions .

Solution Main Features:

  • High etch rate at room temperature.
  • Low surface tension for enhanced wetting property.
  • High stability even in presence of metal contamination
    (Cu, Ni…).
  • Loading & bath life independent of the solution Cu
    contamination level (up to 1g/l).
  • Enlarged loading capacity compared to standard I2/KI
    based solutions.
  • Better process controllability/reliability.
  • Low Toxicity compared to cyanide and HF/HNO3 based

Technical Data Sheet:

For further information please refer to the technical data sheet:
> TechniEtch ACI2 (SPEC)
> TechniEtch ACI2 (TDS)
> Wet Etching
> Wet etching metals

Please be advised that some data sheets are password protected and you need to sign up to get the account data.   > Sign up

Sales Volumes, Purity Grade and Shipping

Available Sales Units:

  • 5L bottles (1 PU = 4 x 5L or single bottles)
  • 20L, 30L, 60L or 200L drums on request

Available Purity Grade:

  • VLSI

Shelf Life:

Our typical lead time is 1-3 working days within Germany, lead times to other countries on request. On demand, in urgent cases our etchants can be shipped within 24 hours to a destination inside Germany.

Please send us your request.

e-mail: sales(at)
phone: +49 (0)731 977 343 0
fax: +49 (0)731 977 343 29

Thank you very much for your interest!

®AZ, the AZ Logo, BARLi and Aquatar are registered trademarks of Merck Performance Materials GmbH.