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Fascinating! Oxidized Plastic Windows "fix"

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Old Oct 7, 2016 | 08:26 PM
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Default Fascinating! Oxidized Plastic Windows "fix"

Hey all,

So my 2001 soft top came with an oxidized plastic window. I've done all I can with my current tools to clear it up; I've used Plexus and Meguir's advanced plastic cleaners on a cheap cloth buffer from home depot. I've made a significant improvements in clarity; once I could see absolutely nothing (0% clarity), now I can see blurry shapes and figures (30-50% clarity)! Good enough for me to no longer worry about it anymore.

2 years later, I notice that when I wash my car the layer of water on the window allows me to see clearly through the blurry/oxidized plastic window! I thought, perhaps there was a easy fix for the window using this property I've witnessed. I figured I'd experiment with clear tape since it has a similar property with the layer of water on the window! Sure enough I stuck it on the window and I can see with 80% clarity!

The properties are very fascinating to me and I was wondering if anyone knew what was going on?

When I stick the tape on the outside portion of the window I can see through the blur, but when I stick it on the inside of the window it remains blurry! I called a window tint shop and asked if they knew why this occurred and if they had a clear tint to fix my problem to no avail. They recommended I call TAP Plastics for answers but they didn't have answers at all either. So here I am, asking your intellect for any ideas and potential long term fixes!

Thanks!
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Old Oct 7, 2016 | 09:46 PM
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May try 3M products, at a tint shop. They have some newer formulations that may work.

Interesting.
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Old Oct 7, 2016 | 09:49 PM
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https://www.youtube.com/watch?v=nRoL2q-tU-Q
https://www.reddit.com/r/interesting...it_seethrough/

Air and glass have a very different refractive index, so if you have a rough glass surface, the incoming light is scattered in all directions, thus blurring the image you see through it.

Tape has a similar refractive index as glass, so if you stick it to frosted glass, the sticky material will fill out the little bumps in the glass. The non-sticky side is practically flat, so by sticking tape to the frosted side of glass that's frosted on one side, you are essentially making it flat again.
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Old Oct 7, 2016 | 09:56 PM
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Originally Posted by HarryD
https://www.youtube.com/watch?v=nRoL2q-tU-Q
https://www.reddit.com/r/interesting...it_seethrough/

Air and glass have a very different refractive index, so if you have a rough glass surface, the incoming light is scattered in all directions, thus blurring the image you see through it.

Tape has a similar refractive index as glass, so if you stick it to frosted glass, the sticky material will fill out the little bumps in the glass. The non-sticky side is practically flat, so by sticking tape to the frosted side of glass that's frosted on one side, you are essentially making it flat again.
AMAZING! Good find!
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Old Oct 8, 2016 | 06:22 AM
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You should keep polishing the window, maybe use one of those kits that are used on oxidized headlights - I think Meguiars makes one, or 3M. You need to get more of that oxidized layer off the window.

My rear hardtop lexan window was oxidized when I bought the top, I polished most of it out with Meguiars plast-X and their buffing kit, inside and out. It is nearly perfect now.

Plexus is a great product but mainly a maintenance coat, I don't think it is strong enough to buff out heavy oxidation. I use it as a protection coating and I do like it very much to give protection from UV rays.
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Old Oct 9, 2016 | 05:14 AM
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This is also how base coat, clear coat paint systems work, and why painting glossy clear on matte paint makes the matte paint seem glossy.
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Old Oct 9, 2016 | 04:47 PM
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I've used Novis plastic polish with great results---it's a 3 step process and is designed for motorcycle and boat windshields. Its available at motorcycle shops and from Amazon--

https://www.amazon.com/NOVUS-7100-Pl...Plastic+polish
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