Clean plastic window

[ASD]

My plastic window has some whitening areas.I've used the 4 step plastic cleaner that was successful in my VW thing. side windows...but the 986 window is still looking
crappy.any tips?

[JFP in PA]

"Fecal matter occurs" department, plastic windows fog with time. Try the one step Plexus product, originally developed for helmet visors, it gets the job done in one step.

[CarGuyNeil]

Originally Posted by ASD

My plastic window has some whitening areas.I've used the 4 step plastic cleaner that was successful in my VW thing. side windows...but the 986 window is still looking
crappy.any tips?

I saw a video on YouTube the other day and this guy used a Magic Eraser with some compound, polishing I would think and sprayed it with WD40 while rubbing the compound in with the Magic Eraser and it worked well. Worth a try. Let me see if I can find that video.

Sent from my SM-N960U using Tapatalk

[jrj3rd]

hate to admit it but the Porsche Tequipment Polyglass Window Cleaner is better than anything else I have used. Was a faithful Plexus user until I was given some of this stuff. Works quick and leaves a crystal clear supple rear window.

[JFP in PA]

Only problem is 00004400098, Porsche Tequipment Polyglass Window Cleaner, is no longer made or available from the dealer network. People forget Porsche has not made a car with a convertible top and plastic window in 17 years............

[mikefocke]

Novus 1, 2 3

Rear Window
We have all seen discolored rear windows on convertibles. They don't have to age like that. Mine is 5 years old and looks like new but it wasn't like that 2 years ago when I bought the car. It was discolored and cloudy. And the surface was rough
Novus makes a series of products designed to deal with the problem (if you already have it) and to prevent it in the future. The Novus 1, 2 and 3 products consist of bottles of plastic cleaners in decreasing levels of abrasiveness. The three products are sold in a kit with several microfibre polishing cloths for about $25.
If the top is new, only use #1. But if the top is already discolored, you start with the most abrasive cleaner, Novus #3, and a clean rag (I use a cotton washcloth) and you rub it on the surface as if you are polishing the window. Do the outside of the window first, then do the inside. Keep it off the top (but if it gets on, just wipe it off quickly). Let it sit for a while. And then take another clean rag and polish it off. Then do the same using the mildly abrasive #2. And finish up with the non-abrasive #1 which is more of a polish than a cleaner. You should only have to do this once.
In addition to cleaning and polishing the surface of the window, these products seem to put some sort of oil into the plastic that allows them to increase their flexibility and thus resistance to cracking.
For maintenance, I use Novus #1 about once or twice a year, though in truth my car doesn't sit out in the elements much with the top up. I drive mine pretty much only when the weather is nice enough for top down driving. And a have a garage.

[jrj3rd]

Originally Posted by JFP in PA

Only problem is 00004400098, Porsche Tequipment Polyglass Window Cleaner, is no longer made or available from the dealer network. People forget Porsche has not made a car with a convertible top and plastic window in 17 years............

Didn't even think about availability. Got a couple small bottles years ago and just grab from the shelf. Sorry for leading anyone down a path to unobtanium..

[Manda Racing]

I thought Plexus was aircraft Lexan glass cleaner originally— good stuff.

[ASD]

I used meguirs plastix polish..it looked good for one day, then clouded in a 2inch thick line area across the width. I have the other polish kit 1 to 4.might try it with some wd40 too.i usr chemical guys preserver on the cloth it looks great. Ill.get the window
clear again........
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[boxster newbie]

an old time motorcycle trick, pledge furniture polish. not the new formula with extra water. just the regular pledge. not only the back window but, gauge plastic on the dash.

[81SCRosewood]

Originally Posted by mikefocke

Novus 1, 2 3

Rear Window
We have all seen discolored rear windows on convertibles. They don't have to age like that. Mine is 5 years old and looks like new but it wasn't like that 2 years ago when I bought the car. It was discolored and cloudy. And the surface was rough
Novus makes a series of products designed to deal with the problem (if you already have it) and to prevent it in the future. The Novus 1, 2 and 3 products consist of bottles of plastic cleaners in decreasing levels of abrasiveness. The three products are sold in a kit with several microfibre polishing cloths for about $25.
If the top is new, only use #1. But if the top is already discolored, you start with the most abrasive cleaner, Novus #3, and a clean rag (I use a cotton washcloth) and you rub it on the surface as if you are polishing the window. Do the outside of the window first, then do the inside. Keep it off the top (but if it gets on, just wipe it off quickly). Let it sit for a while. And then take another clean rag and polish it off. Then do the same using the mildly abrasive #2. And finish up with the non-abrasive #1 which is more of a polish than a cleaner. You should only have to do this once.
In addition to cleaning and polishing the surface of the window, these products seem to put some sort of oil into the plastic that allows them to increase their flexibility and thus resistance to cracking.
For maintenance, I use Novus #1 about once or twice a year, though in truth my car doesn't sit out in the elements much with the top up. I drive mine pretty much only when the weather is nice enough for top down driving. And a have a garage.

This sounds good. What technique do you use? Up & down, left & right horizontally? or Circular?

[VWLoosenuts]

Originally Posted by Manda Racing

I thought Plexus was aircraft Lexan glass cleaner originally— good stuff.

nice. Lancair? I have a Beechcraft but not a pretty as that one.

[mikefocke]

Originally Posted by 81SCRosewood

This sounds good. What technique do you use? Up & down, left & right horizontally? or Circular?

Whatever covers the needed area. And how much? By feel.

[ASD]

i have the novus products but didnt get great fogging removal just yet. trying an "anti fog" cleaner I
found.

[Brillo]

Original back window on my 2000 986. I have been using Plexus since I got it in 2004.

[ASD]

used my novus polishesand the window is clear now. Thankfully!
i had bottles left from my rest on a 73 VW Thing, with side curtains and hardtop.