[TheForge] food grade coating

[Wayne Ackman]

I've been working on a restaurant.  Made them some metal countertops 
that they wanted to have blued.
We used PermaBlue, which turned out decent.  I then sprayed a couple 
coats of urethane on the counters.
The restaurant hasn't opened yet, but someone spilled something (soda 
supplies?) on the counter and it
ate right thru the finish.  This has opened the concern about what kind 
of coating we can put on the counters
that would furnish a food grade finish.  Has anyone done this?  And have 
any suggestions?
Thanks for any help.

Wayne