johnalison
Well-Known Member
I'm pretty sure the yellowing is associated with pollutants. It is something we often get after motoring through Holland and didn't happen this year on a cruise around the Channel. The most success I've had in preventing it was after using a wax polish followed by International wax sealant. Since this is no longer available I don't know what to recommend but wonder if the Autoglym car finish does the same thing.
A friend has an elderly Nicholson which had gone very yellow, which kept recurring. The advice of the local GRP chap was to use cellulose thinners and remove all the old wax, which presumably absorbs the pollutants, before starting again with the usual polishes and waxes.
A friend has an elderly Nicholson which had gone very yellow, which kept recurring. The advice of the local GRP chap was to use cellulose thinners and remove all the old wax, which presumably absorbs the pollutants, before starting again with the usual polishes and waxes.