I use black streak remover which is good for the dark lines that appear but for a general boat wash can anyone suggest a good product please for fibreglass
for just washing off the boat I either used auto-glym bodywork wash wax shampoo or simoniz wash wax...depends whats on offer at the time. Both car products, half the price of marine wash waxes...
have to say black streak remover is also a good product for stubborn spots & stains