Really annoying because I have Nickel plating on my TODO list, and this would help me too.  Found a website saying Sodium Hydroxyacetate is a Brightener.  Less efficient and more expensive than Sodium Acetate, but it lays down an even smoother highly polished surface.

Followed that gem by looking at a few useless websites and then the phone rang.  My ex wished to discuss family xmas, bah humbug. Ab hour later, finally back at the computer, now I can’t find the website.   Memory wiped.  Man From Porlock all over again!

For what it’s worth, unless I dreamt it, Sodium Acetate is the usual chemical.  Hydroxyacetate is for shiny specials.

Dave

I’ve previously posted on here about a product called Niculoy that we used on some aluminium components – but I can’t find a supplier now (used to be RS).

A friend needed to build up the bore of a worn carburettor cylinder.  He thoroughly cleaned it and applied JB weld, allowed to cure thoroughly, then carefully bored to fit the piston.  Might that be an alternative?  Or there are epoxy compounds formulated to build up machine tool sliding surfaces.