Etching platinum with Multi‑Etch
Platinum tiara with emeralds and diamonds. By Ed Uthman (CC BY 2.0).
How to etch platinum with Multi-Etch
| Although Multi-Etch will not etch platinum, it can be used to remove all steel ions prior to welding or soldering. Rather than using the standard protocols involving a 15-minute dip in nitric acid, a 15-second dip in Multi-Etch is just as effective. | ||
| Process | Etch time | Surface change |
|---|---|---|
| 135°F regular strength | 15 seconds | None |
| Note: 3 minutes will remove enough to be picked out; etch longer to dissolve whole bit. | ||
| Process | Etch time (minutes) | Surface change |
|---|---|---|
| 135°F regular strength | 3+ | None |
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 platinum.
Tips and tricks when etching with Multi-Etch
Ordering 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.