That's serious stuff Arthur, real anal anorak!
Quite simply,
3M hand glaze.....Autoglym Super Resin.....Autoglym Hi Gloss Sealer
I'm a big believer in TCUT to freshen up paint work, used very lightly and just the once.......for idiot's you can also get SAFECUT
John
ps, the result....
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the older I get, the faster I was