I posted a reply about polishing and spraying with lacquer. Unfortunately this doesn’t work and the fading comes back after about 12 months. However, I am now trying another solution. I have used International’s Oxford Blue paint on the stripes. I rubbed the stripes down with very fine wet and dry then masked them off and painted them with the Oxford Blue. This exactly matches the original colour. I am told the International paints have a UV protector added so they shouldn’t fade. Only time will tell! However, we did the painting in October 2009 and last week, after a very cold and snowy winter in Scotland it still looks like new.
I will let you know how we get on after a year. If it works it might be a solution to this problem.