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> OK...this is cool. How to clean your yellowed clear plastic parts.
raynekat
post Nov 11 2020, 01:42 AM
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Saw this on YouTube today.
Will have to investigate sulfamic acid (H3NSO3) a bit more, but it sounds fairly safe as far as "acids" go.

The results are amazing.

I can think of a couple of places on our cars that this cleaning trick could be used.

This is definitely for Brent (MT)...the mad scientist.

https://www.youtube.com/watch?v=JqCN7VHMtfQ
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Dobbsy
post Nov 11 2020, 11:35 AM
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You should watch this video, he does not get the same results. it may depend on what plastic it is.
https://www.youtube.com/watch?v=aLJgawqRURY
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bbrock
post Nov 11 2020, 11:56 AM
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Interesting. I was all set to order some sulfamic acid until I watched the second vid. that one, of course, is the exact part I would like to bleach. Still worth it to see a guy with a dishwasher cam (IMG:style_emoticons/default/smile.gif)
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raynekat
post Nov 12 2020, 01:07 PM
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Perhaps in the initial video, the plastic part had rust not yellowing that the sulfamic acid could remove?
Or it was a hoax? Ha

I agree on the dishwasher cam....that was fun.
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dhuckabay
post Nov 12 2020, 01:39 PM
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Sulphamic is very good at removing hard water elements. Means calcium and magnesium. It can not reverse oxidation. Especially on plastic. Would think that when it worked was the hard water.
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JamesM
post Nov 12 2020, 03:31 PM
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QUOTE(raynekat @ Nov 12 2020, 12:07 PM) *

Or it was a hoax? Ha



^that

He pulls a brand new tank out of the solution.

There was a spoof like this video out there that starts out the same but ends with throwing the old one in the trash and pulling a new one out of a box.
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Jett
post Nov 12 2020, 07:11 PM
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I bought a fish tank that was just big enough for the washer bottle, and used a strong bleach solution... wait 7-10 days (IMG:style_emoticons/default/smile.gif)
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raynekat
post Nov 12 2020, 08:46 PM
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Attached Image

I tried the bleach experiment with some body plugs during my project build a couple years ago.

From left to right:

(Left) old yellowed plugs.

(Middle) old yellowed plugs put in a dilute bleach solution for a couple of days.

(Right) new plugs from Porsche.

So you can see they are better with the bleach...but not as good as new.
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Jett
post Nov 12 2020, 09:36 PM
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QUOTE(raynekat @ Nov 12 2020, 06:46 PM) *

Attached Image

I tried the bleach experiment with some body plugs during my project build a couple years ago.

From left to right:

(Left) old yellowed plugs.

(Middle) old yellowed plugs put in a dilute bleach solution for a couple of days.

(Right) new plugs from Porsche.

So you can see they are better with the bleach...but not as good as new?

(IMG:style_emoticons/default/smile.gif) agreed. What is that part number, those look amazing.
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raynekat
post Nov 12 2020, 09:59 PM
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Not sure I remember where I got them?

PartsKlassik carries some different sizes.

https://www.partsklassik.com/csearch.aspx?C...rch=body%20plug

Also Sierra Madre has a kit.

https://sierramadrecollection.com/Plastic-a...-73-p28521.html

Although I don't have any parts numbers, I'm sure some are available at the dealer.
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Jett
post Nov 13 2020, 07:50 PM
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QUOTE(raynekat @ Nov 12 2020, 07:59 PM) *

Not sure I remember where I got them?

PartsKlassik carries some different sizes.

https://www.partsklassik.com/csearch.aspx?C...rch=body%20plug

Also Sierra Madre has a kit.

https://sierramadrecollection.com/Plastic-a...-73-p28521.html

Although I don't have any parts numbers, I'm sure some are available at the dealer.

Thanks!
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