Etching with 9v battery

91bravo

91bravo

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Jun 29, 2008
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Does anyone know how to etch a coated blade using the 9v battery, q-tip, salt water method? Everything I've seen has been with stencils on an already bare blade. What I'm wondering is how you keep the continuity of the current flowing if the blade is coated and the clips don't make contact with the bare metal?

Thank you in advance!
 
91bravo said:
Does anyone know how to etch a coated blade using the 9v battery, q-tip, salt water method? Everything I've seen has been with stencils on an already bare blade. What I'm wondering is how you keep the continuity of the current flowing if the blade is coated and the clips don't make contact with the bare metal?

Thank you in advance!
Click to expand...
What kind of coating ? It is some kind of paint or DLC , TiN ?
 
It's a Becker knife, old crinkle coating. I guess I could knock off some of the coating so I can clip the alligator clip to it. It's going to get stripped after I etch it anyway. I guess I just answered my own question, lol!
 
You will probably have to boost the voltage to burn through.
Or go slow..
Lots of solution and q-tips.
That method has worked when going through milspec anodized aluminum.
 
Would daisychaining two 9v batteries together work? Or would that be too much voltage?
 
This was done with 3 ea 9 volt hooked together neg to pos ,and salt water,
keep adding salt into warm water until it wont absorb any more
probly used 20-30 Q-tip, keep them clean or the etch turns muddy
as soon as it turns dirty just change ends then get a new one and keep going

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