My apologies, I forgot about the sub's posting requirements and I was just going off memory, thank you for the links. Let me try to find the testimonials I was referring to and the specific manufacturer -- it may have been Yshield which is a carbon containing paint as you pointed out.

I didn't realize its containing carbon meant it doesn't work for EMF -- people seem to report that it works for the most part on Amazon though? Referring to: https://www.amazon.com/dp/B007A0RTES#customerReviews

I really need to go through your links more thoroughly (and it also then makes me think EMFs would go through organic tissue as well if carbon can't block it but perhaps I'm misconstruing).