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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Dec 2008
Posts: 22,371 Likes: 354
Roadster Guru Member of the Inner Circle
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OP
Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,371 Likes: 354 |
I've had this issue right from the start on my Roadster. The perspex mists up in the cold garage, and also out on the road in cold weather. Three of the four pieces of perspex do this. The rear offside - in the photo - remains clear. When the sun comes out, or by using a hairdryer, the mist disperses. We concluded after an earlier post that this is micro water droplets which are being attracted to the perspex, but we don't understand why. The most effective blocker so far has been Autoglym tar remover. This suppresses the misting for a week or two. I haven't given up and will try other products over time. This is today - a miserable wet day with the temperature hovering around 1 degree C. 
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Nov 2010
Posts: 987 Likes: 110
Talk Morgan Regular
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Talk Morgan Regular
Joined: Nov 2010
Posts: 987 Likes: 110 |
Hello DaveW,
I have the same problem, but only one of the four pieces of perspex do this.
Material defect ?
Last edited by Jens; 17/12/17 07:30 PM.
2003 Morgan 4/4 2-seater
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Joined: Dec 2008
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Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
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Certainly a material difference Jens. If you look closely there's a coating. but why some mist over and some don't remains a mystery.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Jun 2014
Posts: 11,616 Likes: 43
Wave & smile... It's a Morgan Member of the Inner Circle
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Wave & smile... It's a Morgan Member of the Inner Circle
Joined: Jun 2014
Posts: 11,616 Likes: 43 |
Spooky
Is one sheet polycarbonate and one acrylic ?
2008 XXVII Platform, Bugatti Blue Roadster 4 Seater
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Joined: Nov 2015
Posts: 8,698 Likes: 498
Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
Joined: Nov 2015
Posts: 8,698 Likes: 498 |
Have you tried a really gentle 'cutting agent' like the ones for soft top window scratch removal ?
Jon M
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Joined: Dec 2008
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Yes I've tried all cutting pastes including Meguiars perspex cleaner. The best by far so far is tar remover...........
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Sep 2011
Posts: 14,749 Likes: 158
Member of the Inner Circle
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Member of the Inner Circle
Joined: Sep 2011
Posts: 14,749 Likes: 158 |
Rainex? We used to use it on both sides of motorcycle helmet visors.
Peter ![[Linked Image]](http://bradley.it/public_images/drive.jpg)
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Joined: Jul 2016
Posts: 537 Likes: 28
Talk Morgan Regular
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Talk Morgan Regular
Joined: Jul 2016
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Could it be possible that the ones that are misting up are put in the inside out? I seem to remember that perspex is "coated" on one side.
Dirk
1993 Morgan +4 (Connaught Green)
2009 Mini Cooper D
2024 Mercedes GLC
1994 Ford Motorhome
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Joined: Sep 2011
Posts: 2,814
Talk Morgan Expert
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Talk Morgan Expert
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Take the roof down-problem solved! 
Gerry
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Joined: Dec 2008
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Rain-ex doesn't work. Visor anti mist doesn't work for long. It mists both sides and is worse with the roof down.
Changing the perspex may be the only cure.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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