well i red somewhere, cant remember where...maybe on here about this. you cant use rain-x on your windshield, as i am sure someone has tried before on here.
here's what i did, washed it using turtle wax ultimate(has some wax in it) then rinsed it off and dried using a soft cloth. then i put on the wax which was turtle wax super hard shell (i guess any wax works as long as it isnt petroleuom based). just put it on very thing and do 2 coats if needed so the wax goes on uniformly. after letting dry to a haze, i used a yellow polish cloth to buff (circular motion) it back to a shine. then once the all the wax polish was off i flipped the rag, fogged it up with breath (works best at a small area at a time) and buffed some more(vertical this time to cut glare) b/c the wax left a slight residue. hold against a light to check for glare, if still present buff some more. also did my visors and my helmet.
result, havent tried in the rain at 70mph, but the shower test worked great. the water beaded right up like it should so it should work great. the extra coat of wax hopefully should give an extra minor protection on scratches.
here's what i did, washed it using turtle wax ultimate(has some wax in it) then rinsed it off and dried using a soft cloth. then i put on the wax which was turtle wax super hard shell (i guess any wax works as long as it isnt petroleuom based). just put it on very thing and do 2 coats if needed so the wax goes on uniformly. after letting dry to a haze, i used a yellow polish cloth to buff (circular motion) it back to a shine. then once the all the wax polish was off i flipped the rag, fogged it up with breath (works best at a small area at a time) and buffed some more(vertical this time to cut glare) b/c the wax left a slight residue. hold against a light to check for glare, if still present buff some more. also did my visors and my helmet.
result, havent tried in the rain at 70mph, but the shower test worked great. the water beaded right up like it should so it should work great. the extra coat of wax hopefully should give an extra minor protection on scratches.