Happy Birthday Brian Brice

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g37mt6

New member
Hello everyone. Perhaps someone here can help me out with a small problem. Seems I have a very spotty windshield. I notice these marks (about 1/8" to 1/4" diameter) only at particular times, usually when the glass is wet. Most often when it's raining and the wiper passes over the glass. They are highlighted breifley at this time and then fade, only to reappear during the next pass. Sometimes they are visable when there is dew on the glass, as you can find in the morning. Normally, this would not bother me so much, but there are hundreds (thousands?) of them and they are destracting. I've tried everything from glass polish (Zaino) to glass cleaner (Stoners) to paint thinner and yes, even paint remover (yikes!). Nothing helps, no reduction at all. I have no idea how they got there, and they only seem to be on the windshield. Some, upon closer examination, look like they 'run' into another spot. Looks almost like a wax residue and not your typical water spots. Interesting thing is, unless there is water present on the glass, everything is perfectly clear. Thanks for any help!



Frank :confused:
 
But the rear window of my BMW has ordered "spots" that form a honeycomb stucture in the glass. They can only be seen in certain lights and very visible with my polarized sunglasses. Very annoying while driving, but I tried everything and it is not a film on the glass, it is IN the glass..........so I just have to live with it.
 
I have seen those when there is some residue of a wax or other coating that has somehow found its way onto the windshield. Maybe used a cloth for wax and then the window. The only way I could get rid of those was to use Zaino Glass Polish with a PC, didn't work by hand.... I followed up with Aquapel which coats the glass.



H
 
DO you see them with polarized sunglasses?...then it is the tinting stuff in the window from the manufacturer.



Otherwise it sounds like some chemical was splashed on the windshield...Try lighter fluid (naptha)
 
<blockquote class='ipsBlockquote' >

<em class='bbc'>Originally posted by Guess My Name [/i]
<strong class='bbc'>DO you see them with polarized sunglasses?...then it is the tinting stuff in the window from the manufacturer.

Otherwise it sounds like some chemical was splashed on the windshield...Try lighter fluid (naptha) [/b]</blockquote>
Thanks, I'll give it a try. It's definitely not a tinting issue. This is on the outside surface of the glass.

Frank
 
Since you have some Zaino Glass Polish, try applying it by machine itstead of by hand. I have found. like bigboyhf, that it's works much better with a machine. :up
 
Definately Z glass polish by orbital machine...It will kill you to do by hand!! and I speak from experience...That was the last thing my craftsmen buffer touched before the pad's glue finally failed WAHHHHHHH:rolleyes:
 
<blockquote class='ipsBlockquote' >

<em class='bbc'>Originally posted by Guess My Name [/i]
<strong class='bbc'>DO you see them with polarized sunglasses?...then it is the tinting stuff in the window from the manufacturer.

Otherwise it sounds like some chemical was splashed on the windshield...Try lighter fluid (naptha) [/b]</blockquote>
Your lighter fluid suggestion worked great - thank you!

Frank:bounce
 
you did'nt say if you see the dots at night or is it just in the day time if at night does it look like little stars all over the glass or is it just when you say the window is wet ............
 
Are, in my opinion, caused by the tempering process when the glass is cooled rapidly by a pattern of cold air jets.



It is very obvious with polarized glasses because there is an alteration to the crystalline structure of the glass when it is tempered. Tempering compresses the surface of the glass relative to the center of the glass, sectionally.



Polarized lenses are used in our laboratory to accentuate this observation and determine if optical quality glass lenses are properly tempered. The pattern exhibited is similar to what we see on auto glass, when the light is just right.



Some polarization of light occurs naturally in nature and that's why you don't always need polarized glasses to see the temper pattern on auto glass.
 
Thanks gentleman, I had a great day. Sister in law took the kids for the day so the wife and I had lunch and watched 2 movies at the theatre.

Sounds good Angelo but I actually don't drink too much these days. It's been quite some time since my last beer.
 
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