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Old 02-07-2010, 06:56 AM   #1
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Yellow Plastic Windows

Someone years ago spoke of a compound they used at the marina to restore yellowed plastic windows on boats. Recommended it for Jeeps also. I didn't pay much attention as my windows are good. However, that was then and this is now.

Anyone know of the magic plastic window restore I am thinking of?

Thanks.

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Old 02-07-2010, 07:19 AM   #2
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a month or two back there was a post on here with a video of a guy using a buffer and a chemical to restore old windows. It worked great.
I can't find it. Maybe someone else can.

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Old 02-07-2010, 03:13 PM   #3
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I have a magic plastic credit card that would probably work.
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Old 02-07-2010, 04:00 PM   #4
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The usual cause for yellowed/opaque windows is having repeatedly used paper towels to clean them. They turn opaque from the scratches which then concentrates the sunlight into the vinyl which is what actually turns them yellow. Paper towels should NEVER be used on vinyl windows if you want to keep them clear.

Two good products are available to help remove fine scratches but I doubt either will help remove the actual yellowing. They are Meguires and Novus, you can usually find one or the other at a boat or RV supply store.

To clean vinyl windows, only soft cotton towels or old cloth diapers should be used together with a bit of detergent in a bucket of warm water. Hose them off first, don't rub on the vinyl when there is dirt present as that will scratch them too. Vinyl is soft, it's really easily scratched if you don't take care with them.
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Old 02-07-2010, 10:57 PM   #5
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Thanks Jerry, once again you have been helpful. Will try the Meguires. And yes, I was a victim of the paper towels. Will get a non-racing stripe model cloth diaper from the neighbor for future cleaning. Much obliged.

To pokey: Please send your magic plastic credit card numbers to me. I will verify that they are working. That's what friends are for....
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Old 03-03-2010, 09:01 PM   #6
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I have a bottle of Meguire's PlastX. Also have a few scratches on my back window. Have used paper towels in the past. Does this stuff work?
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Old 03-03-2010, 10:29 PM   #7
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Meguire's PlastX works amazing on old yellowed headlight lenses (on vehicles with the plastic lenses)...I've never used it on a Jeep's plastic windows, but with a little elbow grease and a microfiber pad, I've made dull yellow headlights nice and clear again. If you're gonna use it on your windows, I'd test it in a small area first and make sure it doesn't do any damage.
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Old 03-04-2010, 08:11 PM   #8
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Does anyone know if there is a difference, other than color, between the Mothers Powerball 4Paint (yellow) and the regular Powerball (red). I'm planning to use it on my scratched back window.
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Old 03-04-2010, 09:48 PM   #9
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I found this on their web site.

"The primary difference between the original Mothers PowerBall and the PowerBall 4Paint™ is that the original PowerBall has closed cell foam intended for polishing automotive surfaces. The Mothers PowerBall 4Paint™ has open cell foam that is better able to absorb liquid polishes and waxes. By holding the product within the foam’s pores, the Mothers PowerBall 4Paint™ releases products as needed to apply products neatly and evenly. Plus, open cell foam is soft against delicate clear coat paint finishes."

I was looking for the original and ended up with the 4Paint one. Hope it works.
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Old 03-05-2010, 07:33 AM   #10
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Quote:
Originally Posted by sonofabeach View Post
a month or two back there was a post on here with a video of a guy using a buffer and a chemical to restore old windows. It worked great.
I can't find it. Maybe someone else can.
I swear, I just watched that video yesterday and it was amazing. I don't remember where i saw it, but I do love the google. So here it is:

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Old 03-05-2010, 09:41 PM   #11
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That's what I call a professional job. I used the PlastX and the Powerball4Paint on my back tinted window. Shined both sides really well but did nothing to the scratches. I don't have much oxidation on the window. With really bad windows it's definitely better than buying new ones. I guess you could rent a buffer.

Thanks for the post.
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Old 05-17-2013, 06:25 PM   #12
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I have a magic plastic credit card that would probably work.
Since you offered...your 16 digit number, security code, and complete name would be helpful... Thanks in advance!

LOL
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Old 05-17-2013, 06:28 PM   #13
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I'd like to know what I can do to prevent the clouding effect on my tinted windows..... any prevention suggestions?
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Old 05-17-2013, 06:51 PM   #14
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I'd like to know what I can do to prevent the clouding effect on my tinted windows..... any prevention suggestions?
A good microfiber towel and ammonia free glass cleaner. I use sprayway glass cleaner which can be found for cheap at Costco or online. I also use Plexo plastic cleaner every once in a while.

Be careful of cheap microfiber towels, often they will leave scratches too. I used to detail cars and we had bought these bulk microfiber towels but quickly learned they left major swirls in the paint. Now they are shop rags.

Also once a year I use the orbital machine (like in the video) with some kind of plastic buffing compound (the stuff for headlights works well) and buff out the windows to remove oxidation.
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Old 05-18-2013, 07:11 PM   #15
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I'd like to know what I can do to prevent the clouding effect on my tinted windows..... any prevention suggestions?
The biggest cause of clouded plastic windows is having used paper towels to clean them. Paper towels are made from pulverized wood products which leave millions of little tiny scratches behind. Eventually the scratches build up to the point the window becomes opaque which then causes the plastic to get hot from absorbing the sun's rays instead of passing them through... which starts them on the road to turning yellow.

Instead of paper towels, using nothing but very slightly (barely) moist cloth like soft cotton bath towels, old soft baby diapers, etc. Rinse as much of the dirt off first, then use a mild soapy solution on them. Don't wipe them when they're dirty, that just rubs the dirt into them & adds more scratches.

A good final polish product is Plexus which is an aerosol foam.
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Old 05-18-2013, 08:27 PM   #16
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Ha, that's what it's called, Plexus. No Plexo. I like it because it's anti static.
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Old 07-03-2013, 04:24 PM   #17
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Paper towels wouldn't seem like a good idea. I have a bunch of good quality microfiber cloths already. I'll keep those compounds in mind.
What I've been doing is using "the absorber" damp and just wiping them inside and out when I wash the jeep. Works just fine for the moment.
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Old 07-03-2013, 04:26 PM   #18
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I guess I was thinking of something like 303 aircraft vinyl and plastic protectant - works great on tires, soft tops, etc. But I would imagine it would streak like a BOSS on the windows. It's got UV protectant in it. I'm gonna google anti oxidation stuff and see what pops up.
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Old 07-03-2013, 04:29 PM   #19
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I'd just find and use a can of Plexus plastic polish & just use an old t-shirt to do the final polish. No need for anything spaceage or fancy, plain old cotton tshirts & cotton towels do an outstanding job on vinyl windows.
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Old 07-03-2013, 04:49 PM   #20
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If you have cloth baby diapers around, someone mentioned them earlier, they work great for polishing.

Or get a pack of white cotton t shirts, and wash them a few times first with fabric softener. they work well too for a cheap solution.

used to use them alot for paint polish on my truck, but now i have the TJ that i hardly ever feel the need to even wash.
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Old 07-03-2013, 06:53 PM   #21
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Use meguiar's mirror glaze clear plastic cleaner works great can be used on lot of other things even used on some opaque headlights

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