[TheForge] food grade coating

[Wayne Ackman]

Mike, Peter, crcarlos:

thank you
all interesting options for us to explore.

> Mike Spencer <mailto:mspencer at tallships.ca>
> June 24, 2014 at 7:54 PM
> Brownell's Oxpho-Blue also contains selenium (which makes it a pain to
> get in Canada because Brwonell won't ship it here due to hazard regs
> in the US).
>
> I've fooled around with various blues, used Oxpho-Blue quite a lot.
> Never found anything that was resistant to getting wet.
>
> Never tried the method using molten poatssium nitrate. I've heard
> long ago of someone using it for fancy spurs.
>
> It may be too late to say this but Parkerizing or phosphating
> (producing a black finish) might be more durable. Parkerizing involves
> manganese, possibly on the toxic list but far less worrisome than
> selenium.
>
>
>
> FWIW,
> - Mike
>
> Peter Fels & Phoebe Palmer <mailto:artgawk at thegrid.net>
> June 24, 2014 at 4:14 PM
> Outside my area of expertise Wayne,
> but old time gun bluing was usually selenium based, a grade B poison , 
> if memory serves.
>
> On Jun 24, 2014, at 2:08 PM, Wayne Ackman wrote:
>
> 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
>
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> Wayne Ackman <mailto:stryker at vulcanpro.com>
> June 24, 2014 at 3:08 PM
> 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
>
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