[Guy Beardsley]

Good evening – I am searching for a food contact approved coating for use on a range of cast-iron salt and pepper mills that I am developing. The coating must be able to prevent corrosion, protecting the cast-iron from the salt within it, as well as being a safe food contact material. To make things slightly more complex, it also must be able to withstand a fairly high temperature to allow us to powder coat the external surfaces of the mills and cure them at around 200°C. I thought an epoxy resin might be a good place to look… Any help would be greatly appreciated!

[Katherine Swift]

Hi Guy,

I’m afraid I don’t know of any resin formula that can withstand temps of 200C.

[Sascha]

Hey Guy,
this sounds like you actually should glaze the material.
Resin will not withstand the 200C at all. It is still “just” a plastic.

So yeah, look into glazing maybe.

[Guy]

Thanks for the replies! I have looked at vitreous enamelling them also. I am sure there will be a suitable coating. Maybe the same sort of coating used on an oven…

[Author]

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