Serious Cleaning Problem

<div class='quotetop'>QUOTE(PriusOwner004 @ Aug 20 2007, 05:31 AM) [snapback]499029[/snapback]</div>

Both Griot's Garage and Zaino sell a mildly abrasive glass polish. It can be used by hand (Griot's makes two versions - get the agressive one if you are working by hand). It works best with an automotive random obital polishing machine, but I use it by hand for tough cleaning on windows on the house. That should clean up your problem quickly.

http://www.griotsgarage.com/catalog.jsp?&SKU=11074

- Tom

 

try washing your car with any good car wash soap and a sponge and not while its so sunny. If you can't park in the shade try waiting until late evening. Then immediately dry using either a chamois or a good micro fiber towel, if it is still evaporating too quickly wash and dry each section seperately. The Spots are supposedly caused by water impurities and soap residue.

 

<div class='quotetop'>QUOTE(morpheusx @ Aug 20 2007, 07:38 AM) [snapback]499059[/snapback]</div>

We see the same problem on our Jetskis. Hard water/ scum from the river leave water spots that defy the best efforts to remove. There are several boat cleaners that will do the job, but since they all contain Muriac acid, I went to the Hardware store and got a gallon (for about $3) and used a MILD solution. We use it on the plastic portions of the skis and the spots just vanish !
Remember to add the acid to water (and just a bit will do a lot !)

 

If the problem is water spots, they are usually Calcium or Magnesium Carbonate. A mildly acidic solution will generally disolve them. I would try household vinegar, but rinse it off when you are done.

If vinegar doesn't do the trick, take the car to a professional detailer. They have access to stronger (HCl and HF) acid cleaning products, that you wouldn't want to mess with at home.

 

You could spray the window down with a soap and water mix and use a new razor blade to glide across the glass picking up anything left behind.

 

http://barkeepersfriend.com/products.htm

This stuff is available is most grocery stores. I have even seen it in some auto parts stores.

Just wet the glass, pour some BKF on a wet sponge, rub the window in small circular motions, DO NOT LET IT DRY ON THE GLASS SURFACE, then rinse off with large quantities of water, then wash down the entire area - especially the nearby painted surfaces - like you normally wash a car, then give it another good rinse .

I found out about this stuff by asking an auto glass dealer how to clean glass covered in hard water spots. Amazing stuff . . . both on auto glass and in the kitchen.

Yes, it too is mildly acidic.

 

You can use detailing clay on glass. Since the normal rule is to start with something mild, and then go to stronger chemicals and abrasives if you need to, I'd start with the clay first. Acids and abrasives should be your last resort.