Aluminum and Aluminum Alloys
CAUTION: Safety is very important when etching. Be sure to wear the appropriate protective clothing and observe all WARNINGS on chemical manufacturers MSDS. Also review COMMENTS Section for each etchant.
|
Etchant |
Conc. |
Conditions |
Comments |
|
Kellers Etch |
190 ml
|
10-30 second immersion
|
For most aluminum and aluminum alloys |
|
Methanol
|
25 ml
|
10-60 seconds |
Pure aluminum, aluminum-magnesium, and aluminum-magnesium-silicon alloys |
|
Kroll’s Reagent |
92 ml
|
15 seconds |
Aluminum-copper alloys |
 |
Aluminum-Silicon Alloy, Kellers etch, 200X |