sorry i should have been more specfic its the hull and deck on a 45' steel
boat i primed it with epoxy grey primer 12 months ago now i want to put the
top coat of white polyurathane paint on but first i have to remove the
chalkiness as you say caused by uv. i dont like to sand it as i may sand
through the primer and was hopeing there was something i could wash it with
thanks
david