[quote name='Bloodaxe' post='1204359' date='Apr 19 2011, 04:50 AM']Assuming it's aluminium, stay away from anything abrasive & also anything that contains Sodium Hydroxide (e.g. Oven Cleaner, Caustic Soda etc.). Abrasives will damage the micro-thin anodised layer, and caustics will attack the aluminium.
So... What's left? Chemicals!
Either good old-fashioned paint stripper (e.g. Nitromors), or some nasty solvent like Acetone (Cellulose thinner), MEK, or Xylene. Of the solvents, Xylene is probably the easiest to get as it's freely sold as Hammerite Thinners. You might get lucky with Acetone from a car spares shop.
Personally I'd try the Nitromors first. Plenty of newspaper & an old brush, then lard it on. Leave it for half an hour or so then apply some more. With any luck the paint will start shifting & you can then just rinse off the yuk with the old paintbrush and plenty of washing up liquid.
If you opt for the solvent approach, the trickiest bit will be finding something that'll allow you to fully immerse the pickguard - have a look in Poundland or similar for a roasting tray perhaps. You could try repeatedly swabbing it with cotton wool soaked in solvent, but a full soak will be less work - with any luck the paint will almost completely dissolve & then you can clean it up with a coarse cloth (like an old flannel) & plenty of washing up liquid.
You may also find that there's a slight haze left on the surface. Other than repeating the process with fresh gunk there's not much can be done; the anodising process can be slightly porous & paint that's got in there can be a bugger to get shot of.
If you do need to use a scraper, make sure it's plastic & go [i]very[/i] gently. There's a good chance that the solvents will make a mess of it though & it'll only be fit for the bin afterwards. Patience is a virtue with this kind of thing, it may take several applications.
Oh, wear gloves & open a window.[/quote]
Thanks, Bloodaxe, for this advise. i will give the Nitromors a go. Cheers