I have a need for a very abrasion-resistant coating on aluminum that will
resist sticking of wet sugars under high compression. If a very high
abrasion-resistance isn't available, then a re-coatable system would be
acceptable, so long as I don't have to remove any base metal (more than a
few tenths) to do it.

Any ideas? And are any of them home-shop do-able? (I'm willing to invest a
couple of $K in hardware and chemicals, if so)

LLoyd