My 1988 H35 has fixed several ports in the cabin roof that are constructed with separate upper and a lower plastic lenses. The underside of the top lense is painted white, presumably to obscure it and maintain privacy below. Some of this white paint came off when lense was being removed to address a water sealing problem - leaving an unsightly mottled effect quite noticable from above deck. Can anyone suggest what type of paint this might be so I can redo it?