Perspex and equivalents

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Perspex and equivalents

Postby tnowak » Wed Nov 15, 2017 9:09 am

I have a query regarding perspex/acrylic and equivalents for aircraft side windows.
For a given thickness of material, are some products more rigid than others?
The old side window I am to replace (2 mm thick) is much more rigid than the new acrylic window I want to install.
Thanks
Tony Nowak
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Re: Perspex and equivalents

Postby Trevor Harvey » Mon Nov 20, 2017 10:16 pm

Is it possible that the old Perspex has become more rigid due to aging as the plasticiser leaches out?
Plastic fuel pipes spring to mind.
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Re: Perspex and equivalents

Postby tnowak » Tue Nov 21, 2017 8:54 am

Trevor,

That is a possibility as the old side window is probably 55 years old.

Thanks
Tony
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