How the hell do you remove baked on hard water marks ?

Albsterama

Albsterama

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Before my Jag, I have an 1990 Acura legend. Unfortunately, its had the worse of car care as the townhouse we use to live in, I had to park the Acura outside (damn stupid no parkng in the visitor car park rule).

Anyway, as a consequence, the grass sprinklers inevitably left water marks on the right side of the car, particularly bad on the front passenger side window. Months of neglect meant that it is now "baked" on !

I've tried CLR, shower cleaners, WD-40 and a bunch of solvents and nothing would remove even one water mark from the window, you can see all the outlines of each drop of the hard water.

Does anyone have any idea on how I can remove it ?
 
I've removed some pretty stubborn water spots, both on the paint and on the windows, using SSR 2.5 and a PC. Nothing other than polishing worked for me.
 
Now that is something i have not tried.... thanks sevenrd !
 
Yea I have that problem with my windows thinking about using some polish to try and remove the hard water spots.............
Maybe some of our expers will chime in??
 
AIO and #0000 steel wool will remove hard spots from glass. I had spots that were baked on for years (like areas where the wipers miss), was the only combo that worked. Everything else only worked if the spots were fresh i.e. a couple days. I've also used AIO and a custom 4" orange pad Edge made for me which helped to remove the easier spots quicker, and then folllow up with the steel wool and AIO for the tough ones.

I never tried a full polish or compound as I would be worried that the action of the PC and the abbrassives in the product could actually etch/scratch the glass. DP Glass restorer has some abrassive quality, and I have it and used it, but it didn't work.
 
I have removed hard water spots from windows with DP high performance glass restorer.
This kit has everything you need. I would also get some Klasse AIO, and seal your windows with it. That should help removing future spots in case you park near a sprinkler. Remember though, it is the best to remove those spots as soon as you can.
 
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supercharged said:
I have removed hard water spots from windows with DP high performance glass restorer.
This kit has everything you need. I would also get some Klasse AIO, and seal your windows with it. That should help removing future spots in case you park near a sprinkler. Remember though, it is the best to remove those spots as soon as you can.
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Weird, I know myself and other tried DP Glass Restorer and it didn't touch anything except for fresher spots that were a week or so old.
 
Nu-glass by Duragloss did well for me. Took alot of rubbing but worked great. Haven't tried it with my PC yet. I may give it a try with a 4 in pad sometime.
 
Russecu said:
Nu-glass by Duragloss did well for me. Took alot of rubbing but worked great. Haven't tried it with my PC yet. I may give it a try with a 4 in pad sometime.
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Sounds interesting.
What about DP's Glass Restorer? Anyone? Anyone?

I've used vinegar with good results. XMT#3 works well too.
 
I have used Nu-Glass by Dura Gloss with a 6" RO Buffer with excellent results. I tried it last night on a 2000 G Am and it didn't touch the water spots. I don't know if they changed the formula or if the water had been baked on. I would bet on the latter. I am going to try again this weekend with my Cyclo, orange pads and a little vinegar and 3M finishing polish mixture.
 
Yup, that's what I meant. If you have spots that were baked on for awhile (and I'm not talking a week or two) or just spots in general that are tough, AIO and #0000 steel wool and lots of rubbing are pretty much your only choice short of replacing the glass. I had spots on my suv and other vehicles that were baked on after years (like areas where the wipers miss etc). That was the only combo that worked, and I tried basically everything OTC and boutique. You can search other boards and get the same answer (AIO and steel wool). I have 4" cutting pads and they only seem to work on fresher spots, the grade 4 steel woll will grab at the deposits removing them.

When I was away for a couple weeks, I had some sprinkler spots that not even DP Glass Restorer, NuGlass, other acid (amd citrus) based products, pure vinegar etc would touch. AIO again took care of it.
 
XterraOverload said:
Yea I have that problem with my windows thinking about using some polish to try and remove the hard water spots.............
Maybe some of our expers will chime in??
Click to expand...
Have you tried KAIO yet ? also you can apply a warm towel to the glass soaked/damp in vineger..give it sometime to dissolve the spots..don't to this in the sun and be sure the glass is cool to the touch..It has worked in some cases depending on the severity of the stain..theres a place called windows 101 they are a professional glass cleaning company and sell items for all type of situations ..if all else fails give'em a call maybe they can direct you to a product/process..

btw,i'm not an expert only trying to help resolve your situation..;)
 
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