Butyl rubber on window

steilkurve · Jul 11, 2015

Afternoon. P85D sat in hot sun for prolonged time. Shortly after, I rolled up the back right window which was the most exposed and two streaks of black 'tar' showed up. Searching a bit, I understand this would be excess butyl rubber from within the window assembly. How do folks suggest I clean this? I do not want to damage the window obviously. Regular car window cleaner was my first thought but the stuff seems pretty sticky. Perhaps bug and tar remover? Other thoughts? Thanks.

dennis · Jul 11, 2015

steilkurve said:
Afternoon. P85D sat in hot sun for prolonged time. Shortly after, I rolled up the back right window which was the most exposed and two streaks of black 'tar' showed up. Searching a bit, I understand this would be excess butyl rubber from within the window assembly. How do folks suggest I clean this? I do not want to damage the window obviously. Regular car window cleaner was my first thought but the stuff seems pretty sticky. Perhaps bug and tar remover? Other thoughts? Thanks.

I've had the same problem repeatedly with one of my P85D windows. I use a single edge razor blade to scrape it off and then clean the window with Invisible Glass cleaner.

Lloyd · Jul 11, 2015

I had a little. Solvent (paint thinner) cleaned it easily, and did not return.

mmccord · Jul 11, 2015

Mine kept coming back until i brought it in for service. Tesla fixed it right on the first try and haven't seen it since.

steilkurve · Jul 12, 2015

Ok. Thanks all. Ended up doing my usual wash of foaming then warm soapy water bucket for the mitt. Came right off. I'll see if it returns.

Barry · May 6, 2016

Just happened on on my my windows. I called the Service Center and they are sending a Ranger out in a few weeks to fix it (free only if you're within 15 miles of the SC). Tech said he'll be removing the inside of the door to remove the excess and reapply(?) the sealant.

stevem · May 8, 2016

Rubbing alcohol works very well on that stuff too. They fixed it last year on mine, and it showed up again this year, and I had them fix it again. Hoping it doesn't come back.

Barry · May 8, 2016

stevem said:
Rubbing alcohol works very well on that stuff too. They fixed it last year on mine, and it showed up again this year, and I had them fix it again. Hoping it doesn't come back.

Did it happen on one window or all four?

Johan · May 8, 2016

Had this too. Just remove with window cleaner or some rubbing alcohol.

stevem · May 8, 2016

Mine was just on the driver's window. I started by just using rubbing alcohol but it happened every time I opened the door (the window would roll down a bit and back up) or if I opened the window.

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Butyl rubber on window

steilkurve

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dennis

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Lloyd

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mmccord

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steilkurve

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Barry

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stevem

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Barry

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Johan

Ex got M3 in the divorce, waiting for EU Model Y!

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