On 07/12/2013 17:28, polygonum wrote:
On 07/12/2013 14:11, newshound wrote:
On 07/12/2013 00:27, Cursitor Doom wrote:
Hi all,

Where can I procure some small amount of the above substance for a bread
maker whose 'stirer paddle' (made from cast iron by the look of it) is
losing its coating?

cheers,

cd.

If you don't want to buy a new one, the *key* question is what material
the paddle is made from. That determines whether "polish" is an option.
Different PTFE sprays may be suited to different substrates.

If it's not magnetic then it is probably an aluminium alloy. If it is,
it is steel (but it could be tin or perhaps zinc plated).

I can't think of any ovenware which has zinc components/sufaces - at
least not in direct contact with food.

Nor can I (although you used to get zinc bar-tops and I think kitchen
work surfaces in France). If you were designing a steel paddle to be
coated with some sort of PTFE you might *possibly* want to make it
corrosion resistant in case of pinholes / chips / cracks. But I agree,
zinc is not an ideal candidate because of its slight toxicity and
solubility in acidic solutions.