Hi, I have a swiftcraft seagull , I decided to paint it as it was a bit dirty looking on the hull and also a couple of patches from small repairs, The gelcoat that was on it was smooth and still a bit shiny.Now I have painted it and its flat with no shine at all and its chalky, I bought the paint from a marine store its a turps based fibre glass paint (single tin) Can anyone tell me what I have done wrong and how to fix it? I know this is a real female question but will it still float like this?