Etching a knife blade?

I am concerning etching a knife blade, by using nail polish (or something) to cover the part of the blade I do not want etched and raw  muriatic acid to etch with.  Anyone got any suggestions or recommendations.


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Look into electro-etching, sometimes called electro-chemical etching. The process involves an electrolyte (like salt water), a nine volt battery, and the metal.

For a cheap method, you can use mustard to etch a blade as shown in this video and likely many other sources you can find on the internet

This may help.

WazIt (author)  mpilchfamily3 years ago

This looks do-able, and I will not be using more dangerous liquids. I think I will test it on some scrap material. Thanks

What kind of steel ?

WazIt (author)  steveastrouk3 years ago
I am going to use a sawmill blade, so I guess it is probably 15N20