i remember that awhile back there was a post on renew the pattern on these blades.... I believe it was something with arsenic trioxide and lime juice......
-- think thats the more traditional way?
I agree with Ric.... don't mix the acids..... acetic and ferric chloride may make it muddy... just the acetic should be fine and it may take abit....since it's a very weak acid... .
also... can you remove the handle..... don't want any acid on that...
& don't forget to neutralize it
- positively degrease it before any attempt at an etch...
- also... full emersion of blade in etchant is the best... ( at least from my experience )
take care
Greg
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