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Default Restoring sunlight-yellowed plastic

I have a white telephone, which isn't that old, but has become
distinctly yellowed by sunlight (unexposed areas remain white).

What is your preferred method of restoring the colour?

Daniele
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Default Restoring sunlight-yellowed plastic

On Sun, 14 Jan 2018 14:51:17 +0000, D.M. Procida wrote:

I have a white telephone, which isn't that old, but has become
distinctly yellowed by sunlight (unexposed areas remain white).

What is your preferred method of restoring the colour?


I haven't looked for a while, but Google used to show a variety of home
made preparations that had some effect. Unfortunately, it depends on the
plastic, so it's a bit 'suck it and see'.


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Default Restoring sunlight-yellowed plastic

On 14/01/18 15:06, Bob Eager wrote:
On Sun, 14 Jan 2018 14:51:17 +0000, D.M. Procida wrote:

I have a white telephone, which isn't that old, but has become
distinctly yellowed by sunlight (unexposed areas remain white).

What is your preferred method of restoring the colour?


I haven't looked for a while, but Google used to show a variety of home
made preparations that had some effect. Unfortunately, it depends on the
plastic, so it's a bit 'suck it and see'.


try t-cut


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Default Restoring sunlight-yellowed plastic

D.M. Procida wrote:

I have a white telephone, which isn't that old, but has become
distinctly yellowed by sunlight (unexposed areas remain white).

What is your preferred method of restoring the colour?


I've never done it, but retr0brite is a pseudo-product name for a home
brew mixture of hydrogen peroxide and "oxi" type washing brightener
powder with UV exposure (sunlight will often work but probably not in
January!)

See youtube (The 8-bit Guy and others) for examples of how to do it, and
the strength of peroxide to use.



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Default Restoring sunlight-yellowed plastic

There isn't one. You have a phone made of el cheapo plastic.
Brian

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"D.M. Procida" wrote in
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I have a white telephone, which isn't that old, but has become
distinctly yellowed by sunlight (unexposed areas remain white).

What is your preferred method of restoring the colour?

Daniele





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Default Restoring sunlight-yellowed plastic

Brian Gaff wrote:

There isn't one. You have a phone made of el cheapo plastic.


Actually the results can be quite impressive on un-yellowing 1980's
computers, I don't know how long the whitening lasts, or if doing it
repeatedly weakens the plastic.
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Default Restoring sunlight-yellowed plastic

Brian Gaff wrote:

There isn't one. You have a phone made of el cheapo plastic.


There are several very effective ways of doing it.

I'm hoping to find out if any have worked for readers of this newsgroup
and can be particularly recommended.

Daniele
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