Etching platinum with Multi‑Etch

Platinum tiara with emeralds and diamonds. By Ed Uthman (CC BY 2.0).

Platinum tiara with emeralds and diamonds. By Ed Uthman (CC BY 2.0).

How to etch platinum with Multi-Etch

Preparing platinum for welding or soldering using 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
How to remove drill bits from platinum using Multi‑Etch
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!

Questions? You can contact Multi-Etch by phone or email.