Extreme UV resistant Plastic?

[espresso51]

I have been asked to mould a replacement part that is used in a UV sterilizing plant. The part holds a rubber wiper that cleans the glass UV tube. The part is about 15 mm from the tube so it's getting a really good dose of UV!
The part supplied is made from some kind of fibreglass filled Thermoset. I don't mould thermosets, so I would like to use a thermoplastic. PVC and PBT have been suggested, but I wonder what is being used in the existing systems?

 

[Pud]

PMMA is transparent to UV.

H

http://www.tynevalleyplastics.co.uk

Why be happy when you can be normal?

 

[patprimmer]

How many times have you posted this question

Regards
Pat
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[espresso51]

Hi Pat, sorry I'm new to the forum and I seem to have posted the question twice.
I have no idea how to get rid of the duplicate.

 

[patprimmer]

Three times actually

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers &

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for site rules