When I moved into my rental a year ago my glass surround shower had really bad water spot stains, nearly opaque, but after using 30 Seconds Water Spot Remover half-a-dozen times and good old elbow grease, I now have nearly perfect glass again that I just use 30 Second Shower Cleaner on about every three/four weeks. Of course we do squeegee after each shower.
My question is this: My 1 year old (in NZ) Japanese import car also has water spots on the windscreen and the rest of the glass, will it be safe to use '30 Seconds Water Spot Remover' on it?
Cheers


