i see your from henley! bracknell meet 1st sunday in everymonth, pop down!
, in regards to you Q, prise it off with a flat head screwdriver, wrapped in cloth to prevent damage to paint, if it has no stonce chips on it then just scotch brite it down, few layers of primer, few layers of paint, only need can paint from frauds rle, they do an antracite there mate