Etching hafnium with Multi-Etch
How to etch hafnium with Multi-Etch, the safer alternative to hydrofluoric acid
Multi-Etch was originally developed for use on titanium, and is a perfect low-acid (pH 6.8) alternative to hazardous hydrofluoric (HF) acid for etching hafnium
|Process||Etch time (minutes)||Etch depth (inches, cumulative total)||Surface change|
|150–160°F double strength|
|2||0.0015||Matte, dark grey|
|3||0.002||Matte, dark grey|
Step-by-step guides on etching with Multi-Etch
The guides below demonstrate etching with titanium, but the order of steps are the same for etching hafnium.
Tips and tricks when etching with Multi-Etch
Multi-Etch can be ordered throughout the world! View the list of Multi-Etch retailers.
Questions? You can contact Multi-Etch by phone or email.