Bi-metal etching

[P. McKinley]

I've been working on a knife with parts composed of damascus steel and copper soldered together to form a sheath collar and knife handle butt cap. These pieces are all polished and ready to etch, but I'm a bit puzzled on how to protect the copper from the ferric chloride.

Here's the quazi-WIP thread: http://www.bladeforums.com/forums/showthread.php/854563-Not-as-easy-as-it-looks!!

Any tips would be greatly appreciated.

Thanks,

Peter

 

[insanity]

You can use a stop out such as nail polish to protect the parts you do not want to be etched. Use a colored nail polish so it is easy to see where it is. Check to see that there have been no failures in the layer of polish every few mins.

Wayne Suhrbier

 

[P. McKinley]

You can use a stop out such as nail polish to protect the parts you do not want to be etched.

I'll give it a test.

Thanks