Hard water spot removal

yachtfisher · 04-23-09, 06:47

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

Premium · 04-24-09, 02:57

Try white venegar diluted with water. If that doesnt work you might try to polish it out.

yachtfisher · 04-24-09, 06:27

Thanks on the vinigar
What would you use if you were going to polish it out ?
process and product ?

Thanks Premium

Premium · 04-25-09, 07:59

What polishes do you have? I would try the least aggressive method first. Do you have a PC or a Rotary?

yanks_178 · 04-26-09, 01:50

Toilet bowel cleaner has worked wonderful for me on water spots.

Greg Nichols · 04-26-09, 02:41

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

yachtfisher · 04-30-09, 06:39

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