Hard water spot removal

yachtfisher

New member
Ok guys I wannted to see what you use for stuborn water spots on marine windows. Have you ever found any that could not be removed ?



I had a boat (saltwater) recently that I could not remove the spots, almost like the glass was etched.



I tried a razor blade and glass cleaner as a lube for scraping // lime away / and compound on a foam pad.



The windows look super good and clear from the inside which was a huge improvement but you can still see from the right agle on the outside, and quite noticable at that
 
What polishes do you have? I would try the least aggressive method first. Do you have a PC or a Rotary?
 
Hard water is Alkaline (base) so you need to use Acids to neutralize them. If etching has occurred polishing is the next course. I remember that Lake county makes a glass polishing kit, with Cerium Oxide as the media, that should help as a last resort.



Cheers,

GREG
 
Thanks guys,



Premium: have all the stuff, I tried some Klasse Aio (reduced spots / roughness) tried finess it did about the same. The windows look much clearer but you can still see the water marks.



Thanks
 
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