04-15-2016, 02:55 AM
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#1
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Registered User
Join Date: Aug 2013
Location: Ottawa, ON
Posts: 452
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Plastic Back Window
Hey guys, I noticed this year my back plastic window has a white fogy looking 4 inch strip down the centre going across width wise where the window folds. Basically making it impossible to see through the window anymore. Does anyone have any idea if this can be easily cleared up somehow ?
Thanks in advance
DR.C
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DrCactus
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04-15-2016, 03:27 AM
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#2
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Registered User
Join Date: Jul 2014
Location: Canada
Posts: 487
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I use Pledge furniture spray. Clean the window then apply the spray and polish. It lasts for a while. A lot of boat owners use this as they have a lot of plastic windows.
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99 Boxster sold
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04-15-2016, 03:47 AM
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#3
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Registered User
Join Date: Nov 2013
Location: Emerald City
Posts: 885
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Try the Novus 1 2 3 system. It definitely increased clarity for me I also maintain the window with plexus in addition to the Novus 123.
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04-15-2016, 03:48 AM
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#4
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Registered User
Join Date: Sep 2012
Location: S. New Jersey
Posts: 1,239
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I used headlight restore polishing compound to get scratching out. Worked great and when I start getting fogging will try that method as well
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2002 S - old school third pedal
Seal Grey
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04-15-2016, 04:46 AM
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#5
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Registered User
Join Date: Feb 2004
Location: SW Boston
Posts: 47
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And after you get it clear-keep it clear
Before putting the top down wipe the window with a wet paper towel then pat dry (don't rub dry, PAT). If you use a white paper towel to wet wipe it you'll find very fine dark dust on the plastic. When the top goes down, the plastic folds on itself and this dust acts like sand paper. I always clean mine before lowering and I'm on the original '02 window and I only need to use Plexus one or two times a year (and then I of course use micro-fiber and not paper).
The one time I failed to clean it (a windshield repair guy needed to have the top lowered and I didn't clean it) I got that fog in the middle and had to use Plexus to get rid of it. Good luck. Tom
Last edited by tlc356sc; 04-17-2016 at 02:38 PM.
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04-15-2016, 06:42 AM
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#6
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There Is No Substitute.
Join Date: May 2007
Location: West Coast
Posts: 3,253
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+1 for Plexus
I use it to clean my plastic window and headlights. If you don't want to order it online, it can normally be found locally at boating stores, like West Marine.
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1999 Ocean Blue Metallic Boxster - blueboxster.com
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04-15-2016, 08:23 AM
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#7
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Registered User
Join Date: Apr 2014
Location: Chicago
Posts: 329
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+2 for Plexus
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'99 Porsche Boxster 986 - weekend car
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04-15-2016, 08:27 AM
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#8
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Registered User
Join Date: Mar 2014
Location: Eastern NC
Posts: 695
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Quote:
Originally Posted by Top_Ramen
+2 for Plexus
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Plus 3 for Plexus - my boat and jeep also get the Plexus treatment.
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04-15-2016, 08:57 AM
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#9
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Registered User
Join Date: Aug 2013
Location: Ottawa, ON
Posts: 452
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I bought a bottle of Plexus - now my question is - is the issue on the INSIDE or the OUTSIDE ? What is the best way to use this product for my issue?
Thanks all
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DrCactus
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04-15-2016, 11:08 AM
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#10
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There Is No Substitute.
Join Date: May 2007
Location: West Coast
Posts: 3,253
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For the outside I spray it directly on the plastic window then wipe it off with a microfiber towel. For the inside, I spray it on the towel first. The inside can be pretty awkward, so you might want to put the top in the service position first (open it half way).
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1999 Ocean Blue Metallic Boxster - blueboxster.com
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04-15-2016, 11:37 AM
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#11
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Registered User
Join Date: Sep 2009
Location: Tx
Posts: 259
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If the top is old... I'm thinking the clear plastic has chemically changed. Mine did. I ended up ordering a new top for around $350 and there is a good DIY here. It wasn't that easy of a job, and you need to be a skilled handy man. However, my top install turned out great! :dance:
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Chris Dennis, Plano, Texas
'07 Boxster, arctic silver, Tiptronic, 106k miles, no mods
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04-15-2016, 12:37 PM
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#12
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Registered User
Join Date: Apr 2012
Location: Mid-Michigan
Posts: 89
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replacement top
Quote:
Originally Posted by texomawaves
If the top is old... I'm thinking the clear plastic has chemically changed. Mine did. I ended up ordering a new top for around $350 and there is a good DIY here. It wasn't that easy of a job, and you need to be a skilled handy man. However, my top install turned out great! :dance:
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Where did you get the replacement top for $350. Would you mind posting pictures of what it looks like on your car? My rear window cracked last week. It's temporarily repaired with clear shipping tape as I investigate replacement options. Thanks!
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2000 base tip, desnorkeled, secondary cat delete, underdrive pulley.
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04-15-2016, 04:24 PM
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#13
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Registered User
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,537
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For the future, use a piece of soft felt between the folds. Dirt abrades the surface when the two folds rub together.
I used a Novus 1 2 and 3 kit on mine. They are 2 abrasive level bottles to remove the dirt and scum with the final bottle working to polish the surface.
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04-16-2016, 02:19 AM
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#14
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Registered User
Join Date: Oct 2014
Location: SE Ma
Posts: 261
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You should avoid cleaning plastic with paper towels. Always use a soft cotton or micro fiber.
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04-16-2016, 08:43 AM
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#15
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Registered User
Join Date: Jul 2015
Location: LaGrange Highlands,IL
Posts: 181
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Quote:
Originally Posted by jrblackman
Where did you get the replacement top for $350. Would you mind posting pictures of what it looks like on your car? My rear window cracked last week. It's temporarily repaired with clear shipping tape as I investigate replacement options. Thanks!
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I bought mine from Convertible Top Replacements | Auto Tops Direct Car Tops last summer for $370. and it was with the German A5 fabric. The install is a little daunting but mine came out pretty good except for a few wrinkles on the drivers side but that was my fault I'm sure. I saved around $700. in labor though, so I can live with the wrinkles or try to correct them. I just checked and their prices start at $339., the one I bought is now $409. or you can go with a glass window for a few hundred more.
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1999 Boxster base w/sport package Ocean Blue Metallic/Savanna Beige
Last edited by joecal; 04-16-2016 at 08:45 AM.
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04-16-2016, 09:44 AM
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#16
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Registered User
Join Date: Nov 2013
Location: Emerald City
Posts: 885
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Quote:
Originally Posted by Deadeye
You should avoid cleaning plastic with paper towels. Always use a soft cotton or micro fiber.
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+1. Especially when using cleaning products like plexus or Novus. They even say right on the bottle not to use paper towels.
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04-16-2016, 06:04 PM
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#17
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Registered User
Join Date: Jan 2016
Location: CO
Posts: 126
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Quote:
Originally Posted by Deadeye
You should avoid cleaning plastic with paper towels. Always use a soft cotton or micro fiber.
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Absolutely!
Paper towels are abrasive, and they have wax on them, you'll never get rid of the streaks.
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04-18-2016, 04:56 AM
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#18
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Registered User
Join Date: Aug 2013
Location: Ottawa, ON
Posts: 452
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The plexus I bought from the store is liquid not a spray ... they don't seem to sell the spray kind here only the white thick liquid kind. I tried it out but the middle window (where folds) still stays pretty foggy looking. Not sure if there is anything else I can do to resolve this other than full replacement
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DrCactus
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04-18-2016, 10:59 AM
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#19
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Registered User
Join Date: Nov 2004
Location: New Jersey
Posts: 8,709
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I would not use micro fiber on the plastic window unless it's a new towel, and use only the non-prickly side.
There's also a product called Renovo that is more of abrasive polish used on Lexan hard plastic windows and soft bendable plastics. There are also buffing pads you can use with a power drill made for clear plastics, basically what they use on cloudy headlights.
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04-25-2016, 05:03 AM
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#20
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Registered User
Join Date: Feb 2013
Location: Cranston RI
Posts: 902
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I place a soft cloth on the window when putting top down so the window does not fold on itself. I also treat the window to keep it clean and pliable.
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99 Porsche Boxster
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