[TheForge] food grade coating

[crcarlo123--- via TheForge]

You can have it coated with Teflon. Teflon is approved for direct food contact check with your local powder coating shop they may be able to do it

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> On Jun 24, 2014, at 6:52 PM, "Bruce ." <freemab222 at gmail.com> wrote:
> 
> Here's an MSDS for B/C PermaBlue.  There might be more than one product
> under that brand name, so try to find the one you used.  The supplier is
> required by law to provide it, which they usually do these days over the
> Internet, for you to print off.
> https://www.birchwoodcasey.com/getattachment/Resources/Safety-Data-Sheets/13322-13325-Perma-Blue-Paste-Gun-Blue-2012.pdf.aspx
> 
> Note that that formulation contains selenium, which probably makes it a
> no-no for food use.  (That's not a certainty, because it may be that the
> selenium residue on the surface would be lower than the legal threshold,
> whatever that is.  Bad bet, though.)
> 
> I'm not knowledgeable in the field either, but if a glossy brown or black
> finish would do, then I recommend the one finish that's generally regarded
> as safe for food:  A thin coat of polyunsaturated oil, followed by heat
> (350 - 400 F for an hour works).  If the metal is shiny, this will be a
> deep cocoa brown which often looks ugly.  If the metal is black, it will be
> a lovely shiny black.  The shine could probably be rendered to matte easily
> enough.  Unfortunately, this is not a hard finish and will scratch.
> 
> I note there's a discussion of this topic on Iforgeiron.com, but I didn't
> read it.  There's a lot else accessible through Google.  It's a real can of
> worms to be working with surfaces for restaurants.  There are specific FDA
> regulations.  You don't say whether these are food preparation surfaces, or
> what.  I wouldn't touch something like this without a sign-off from my
> attorney and a check what my insurance will cover.
> 
> Have you considered covering the surface with a transparent, food-grade
> plastic sheet, such as acrylic or polycarbonate?
> http://www.professionalplastics.com/professionalplastics/FoodProcessing-HandlingBrochure2011.pdf
> 
> Bruce
> NJ
> 
> 
>> On Tue, Jun 24, 2014 at 5:08 PM, Wayne Ackman <stryker at vulcanpro.com> 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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