Wash it ? it only gets dirty again !
Spoke to my mate, t-cut is "sh!te" apparently. Use '3M Finesse-it' - it works and you should be able to pick it up from an auto paint dealer. While your there you can pick yourself up an electric buffer and take all the hard work out of it, plus you get a new toy and we all know you can't have too many toys. A polishing bonnet on an angle grinder is not the same thing, it will explode.
