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.


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

mpilchfamily11 months ago

This may help.

WazIt (author)  mpilchfamily11 months 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

steveastrouk11 months ago

What kind of steel ?

WazIt (author)  steveastrouk11 months ago
I am going to use a sawmill blade, so I guess it is probably 15N20