My FTO came over this last year , but it has some rubber wear ... The rubbers all in tact , but it looks like some sort of sap or weather damage on it ... I tried scraping it off , but it just eats in to the rubber ...
I want it to look all shiny like the inside rubber again

iv tried , big kevs goo remover and scraping with a knife , but no good ...
Anyone got any suggestions on bringing some life back ??