HI, how badly damaged is it, I broke mine quite badly, here,s what I did to repair it. removed spat clean and roughen inside then apply mesh joint repair tape on inside across cracks and missing pieces[available from DIY shops its for plaster board etc] then repair inside with davids P40 or similar {its like fibre glass matting in a tin for car bodies]. when hard set sand down any that is sticking through too far on outer side, then with a screw driver scrape the cracks to make a groove to take some P38 body filler then fill grooves and any damaged area, and sand down till smooth and level may need 2 applications to get right. then sand whole spat with 240 wet and dry, apply plastic parts primer, and a suitable top coat by aerosol available from Halfords. if needs be any loose bits can be stuck in place before applying mesh tape.
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