I have an old skool marin in raw finish but there is a clear seal on top i think.What is the best way to remove the top coat anr then what is the best way to polish it back to its former shiny state.

It's oxidation on aluminium that cause it to go dull.

I would imagine that if you took it to a metal stripping place they could dip it for you to get the lacquer off.

Not sure on how to polish it, but a lot of car modifiers just use increasing grades of metal polish to get their alloys to a mirror finish. I presume the same principle could be applied to an aluminium frame.

The problem you have on stripping the oxidation is that it oxidizes fairly quickly, so it would really need stripping in one go and lacquering soon after

angle grinder 😉

http://www.bikeforums.net/archive/index.php/t-47400.html

Once it's polished, go over it with a good car wax and it'll stay shiny for ages.

Elbow grease and ball sweat

Belgom Alu or, if not available, Peek.

Brasso{tin} [Duraglit] wadding works for all my metal polishing with an old soft rag

Dirtynap – Member

Elbow grease and ball sweat

on what sort of cloth?