New Reflective Sheeting Type - Engineer Grade Prismatic

[Brian556]

I started seeing this in the description for signs on Ebay, and thought it was seller error. I had no idea about it,  but it does indeed exist. IDK when it came out.

http://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Engineer-Grade-Prismatic-Reflective-Sheeting-Series-3430?N=5002385+8709322+8710677+8710896+8711017+8711331+8712276+8728233+3294099659&rt=rud

[hbelkins]

Looks like what Kentucky's new route markers are using.

[cjk374]

I'm confused...under their "applications" listing is "non-critical traffic signs and non-regulated traffic & commercial signs". I read that to say that you can't use it on STOP signs (critical IMO), and you can't use it on most any other traffic signs (regulated, as in the MUTCD) but maybe for shopping mall parking signs or municipal signage.

Am I over-reading this?