C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Streaks on window that don't come off

Old 09-30-2018, 02:28 PM
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rejoise
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Default Streaks on window that don't come off

I have streaks that look like rain drops that ran down over the windshield. Bought car used, so don't know anything about it. Used Zep degreaser, washed, then windex with vinegar & water, then acetone then car wash, - still on.
Thinking of using MEK.. what choices do I have. Appears clear during day, only in foggy humid weather does this happen and makes driving very hazardous...
Old 09-30-2018, 02:40 PM
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confab
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It can be over spray, possibly.. Mineral deposits if they're really bad.

You can "shave" the window with a razor blade to remove over spray and the like. You can also use super fine steel wool, but you must get it all off of the car afterwards or it will cause rust spots in your paint.

You can also massage it with a mild abrasive.. Like toothpaste and water.

Old 09-30-2018, 02:42 PM
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confab
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Also make sure it is outside the window and not inside. Bad masking job can lead to over spray on the inside too, and they can look like that when it is humid out.
Old 09-30-2018, 03:40 PM
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ctmccloskey
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I am going to suggest that you try the "Invisible Glass" from Stoner Industries. I get it at advanced auto and there has never been any glass product that even comes close to the clean it makes on your windows. That would be the first thing to try, if that does not work you need to go to Eastwood and get one of their "Pro Glass Polishing kits" I have used this before and it is a great product. I never thought my windshield would be as clear as it is today!


They get $48 for the kit and it will do more than one Corvette easily. Very simple kit to use and little risk of destroying your glass. Toothpaste does work if you have to go that route. I am trying to show you something designed to do precisely what you are trying to do.
I wish you the very best in getting the glass clean!

Last edited by ctmccloskey; 09-30-2018 at 03:41 PM. Reason: typo
Old 09-30-2018, 05:48 PM
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Fiberbundle
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You can go to home depot/lowes and buy a product called Cerama Bryte. It is a soft paste like product used to clean and polish glass cook tops and works extremely well. Put some on a damp cloth and it will polish the glass perfectly. It is all I use before shows. $6 or so
Old 09-30-2018, 07:53 PM
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FASTAZU
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Last edited by FASTAZU; 01-07-2020 at 05:08 PM.
Old 10-01-2018, 11:39 AM
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topfuel67
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Are the windows tinted? My 89 has the lightest tint that doesn't even seem to be there.

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