Cheers mate,
The spare wheel well was fine, we just fiberglassed it up.
I need to ring up the paint shop though at some stage, to find out about fixing this reaction.
I understand that I can cut it back and treat it with and isolator to fix it, but will see.
I will try and put up some more pics of the problem this weekend, as the above one does not
show it that well. The other areas have a different bubbling effect rather than the 'run' like effect shown
on that 1/4.