"william mason" wrote in message
...
On Sun, 20 Nov 2005 15:25:22 -0000, "GO" wrote:


I may get some & try on some scrap material before getting anything near
the
boat! Do you have any perspex you could experiment with?

I don't have any perspex, but have tried on a scrap of clear
polycarbonate (Lexan), which seems to be unaffected ( no misting or
softening) but now sheds water as if it were glass. You could always
try it on an out of the way corner of the windscreen before going the
whole hog !

Thanks, my windows are probably the same type of material (tougher than
perspex) I shall have a go in an inconspicuous area, I could email the
manufacturers for some advice.......