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Interior & Glass Discuss All your Interior Issue - Dash - Seats and All the Car Glass Areas - Interior Dressing, Leather etc

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Old 26-11-2015, 10:57 PM   #1
GleemSpray
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tiger-stripe windscreen smearing ?

I have got strange tiger-stripe like staining / smearing all over my front windscreen and it’s not shifting easily.

Its only visible when wet and wipers are doing their thing, but it looks almost like something has been roughly sprayed then dribbled down the windscreen a bit. Its baked on tough too and I *think* I can actually feel it with my fingertip.

AG Glass Polish won’t touch it and the only other thing I have tried is Surfex @ 10%.

Have bought some Barkeepers Friend to try after reading about it on here, but thought I would ask on here in case anyone has any ideas of what has caused this and what could shift it ?

Car is a Mk6 Golf and the windscreen is one that was replaced by VW last year, so it’s not that old.

There are also some big circular marks which look like the vacuum suckers used to handle windscreens, but I can’t tell if they are inside or out.

Thanks in advance.
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Old 26-11-2015, 11:12 PM   #2
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Hi chum. I had exactly the same issue as you with Mrs Cooks' wee DS3 when I bought it. It was all the exterior glass surfaces though.

I cleaned with AS silver screen, and treated with several coats of H2GO to ensure coverage and it hasn't reappeared.

Hope you get sorted.

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Old 27-11-2015, 06:21 PM   #3
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Wow!

Did the windscreen with Bar Keeper's Friend this morning and it has been crystal clear through some epic rain this afternoon.

Few areas around the edges need further treatment, but go into do rest of exterior glass as soon as i get a chance!
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Old 27-11-2015, 06:53 PM   #4
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Glad it's sorted, mate.
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Old 27-11-2015, 08:48 PM   #5
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Amazing. I had tried every sort of APC, Surfex, AG Glass Polish .. and nothing would touch it. It was baked on good - whatever it was.

Made up a paste of BKF, was careful to avoid paint and trim and just gently worked it round the glass with a jumbo car sponge and light pressure. After a minute or so it goes milky looking and you can tell it has loosened it.

Rinsed it off really thoroughly and .. Job Done ! ...

Makes a huge difference to driving late afternoon in the dark with this weather.

Hoping for a window of dry weather this weekend to finish the rest of the glass
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Old 27-11-2015, 10:04 PM   #6
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Fantastic mate. Glad it's sorted.
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Old 02-12-2015, 09:33 PM   #7
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Curiously, it has returned, but no-where near as bad.

Have had a few days of smear-free, crystal clear windscreen and then yesterday i washed and the car with BH Autofoam and this same pattern has returned (faintly) on the windscreen and the wiper blades are faintly smearing again - though nowhere near as bad.

Guess it must be detergent residue or water marks ? I think i will have to remember to clean the glass after every wash to stop it building up in future, whereas in the past i have only bothered cleaning the glass after using wash n wax type products or when i have had run-off from the roof whilst cleaning.
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Old 02-12-2015, 09:39 PM   #8
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It won't reappear if, after you clean it, you apply a rain repellant like h2go as I said above chum.

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Old 03-12-2015, 02:06 AM   #9
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Thanks Cooks - Ive got some RainX , so will try that
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Old 03-12-2015, 02:13 AM   #10
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Sounds silly but take the wipers off and give them a bloody good clean every time you wash it. Any crud basicly rolls down screen and sits on blades. A good clean with high alcohol glass cleaner should help no end
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