The method used and linked, by Powers1
above is remarkable...
but, for a quick shot with less effort, I'd
rec'd 303...see the link, hit Home to
find a joint near you that sells it; hard to
find, but the stuff works! I have used it
for a decade on m'cycle windshields and
helmet shields...less is more and gently!
GL,md
http://www.303products.com/tech/inde...Product_ID=428