I've got a damascus steel knife, which I accidentaly broke the wooden handle. I teared it apart and all I was left was a bare blade. I've created a new wooden handle, but while making it, I've also brushed the blade a bit, while fine sanding the wooden handles while attached to the blade.
Is there any option I could re-etch the blade again, and if so - what acid should I use (I've heard for Ferric III Chloride (Fe3Cl)) but I don't know the concentration neither the time or temperature of etching or the whole procedure.
So, how do I etch a damascus steel knife?