Mung on my windshield - BMW Luxury Touring Community
 
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post #1 of 6 Old Dec 4th, 2009, 5:46 pm Thread Starter
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Mung on my windshield

Supposedly that's what the Germans call it ...you know - the streaky stuff on the inside of your car's windshield you can't get rid of... I've been told it's due to plasticizers inside the car. I've tried 100% cotton, microfiber cloths, newspaper, lint free paper towels, you name it. All kinds of window cleaning solutions. It wins every time.

Someone MUST know a way to get rid of it - it's driving me nucking futs!

I will be eternally grateful to whomever knows the solution!


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post #2 of 6 Old Dec 4th, 2009, 6:03 pm
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Re: Mung on my windshield

Quote:
Originally Posted by RonKMiller
Supposedly that's what the Germans call it ...you know - the streaky stuff on the inside of your car's windshield you can't get rid of... I've been told it's due to plasticizers inside the car. I've tried 100% cotton, microfiber cloths, newspaper, lint free paper towels, you name it. All kinds of window cleaning solutions. It wins every time.

Someone MUST know a way to get rid of it - it's driving me nucking futs!

I will be eternally grateful to whomever knows the solution!
Ron,
You are fighting a continuous leeching of the softeners in the vinyl of your interior. The release is accelerated by your higher AZ temps. Keep working on it and there will eventually be an equilibrium.DON'T use paper towels. They will scratch the soft auto glass. The major component of vinyl is Polyvinyl chloride. It is a "hard" crystal that is mixed with processing agents and other softer polymers that will leech from the chemistry until they are exhausted unless there are more expensive additives that capture the soft polymers for the long term.

Remember the vehicles of the 60's & 70's where the dash and seats would crack. Complete loss of plasticizers.

What kind of a vehicle?

As I recall, I read a news release that Toyota (Lexus) was working on a vinyl polymer that would not release it's plasticizers.

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post #3 of 6 Old Dec 4th, 2009, 6:50 pm
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Re: Mung on my windshield

Quote:
Originally Posted by PMitchell
Ron,
You are fighting a continuous leeching of the softeners in the vinyl of your interior. The release is accelerated by your higher AZ temps. Keep working on it and there will eventually be an equilibrium.DON'T use paper towels. They will scratch the soft auto glass. The major component of vinyl is Polyvinyl chloride. It is a "hard" crystal that is mixed with processing agents and other softer polymers that will leech from the chemistry until they are exhausted unless there are more expensive additives that capture the soft polymers for the long term.

Remember the vehicles of the 60's & 70's where the dash and seats would crack. Complete loss of plasticizers.

What kind of a vehicle?

As I recall, I read a news release that Toyota (Lexus) was working on a vinyl polymer that would not release it's plasticizers.



Ya...What he said.....

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post #4 of 6 Old Dec 4th, 2009, 10:15 pm
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Re: Mung on my windshield

I've heard keeping the windows cracked and HVAC vent open will keep the haze off the windshield. I always forget to do that though. The rest of the windows in my car are hazy too. Doesn't have anything to do with plastisizers. They're my Yorkshire Terrorist's nose prints!

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post #5 of 6 Old Dec 5th, 2009, 4:10 pm Thread Starter
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Re: Mung on my windshield

Quote:
Originally Posted by PMitchell
Ron,
You are fighting a continuous leeching of the softeners in the vinyl of your interior. The release is accelerated by your higher AZ temps. Keep working on it and there will eventually be an equilibrium.DON'T use paper towels. They will scratch the soft auto glass. The major component of vinyl is Polyvinyl chloride. It is a "hard" crystal that is mixed with processing agents and other softer polymers that will leech from the chemistry until they are exhausted unless there are more expensive additives that capture the soft polymers for the long term.

Remember the vehicles of the 60's & 70's where the dash and seats would crack. Complete loss of plasticizers.

What kind of a vehicle?

As I recall, I read a news release that Toyota (Lexus) was working on a vinyl polymer that would not release it's plasticizers.
Yep, but you would think that a 1988 Chevy Crew Cab would have passed all of it's gas by now! (although my Mercedes does it too - grrrrr)

I'm thinking about soaking a small sponge with some acetone or MEK, then using some forceps to hold it and swab the window. I'll need to do it on a breezy day to keep my lungs from melting...


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post #6 of 6 Old Dec 5th, 2009, 4:14 pm Thread Starter
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Re: Mung on my windshield

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Originally Posted by DaveDragon
Vinager? It's powerful stuff!

3M 24 Oz Adhesive Remover Citrus Base I use this to prep surfaces and it removes everything.

jm2cw ymmv lsmft
Yep, tried vinegar, no joy. Tried ammonia too and I thought for sure that would work. Nope.

I've got some ZEP citrus based degreaser in the shop. While it's worthless for grease it just might do the trick on the windows - never thought of that... thanks Dave.

If not I'll try the 3M adhesive remover. I love 3M products... they make the visco foam for my seats!


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