Powder Coating as Sheath Material

A. Hi Santanu. My interpretation is that you are having a communication difficulty with your design consultant which can only be resolved by communication, not by soliciting opinions from 3rd parties.

You have to get him/her to clearly enunciate what they mean by "sheath" because in one sense any coating at all is a sheath, in another sense many people would consider a sheath to be removable, in a third sense s/he may want the powder coating to electrically or thermally insulate the metal as a protective sheath. Unfortunately you can't, out of context, put fine nuances on common words that other people sling around without nuance. Good luck.

Regards,