Plastic moulding.
 

On 29-Nov-16 7:55 AM, Brian Gaff wrote:
I don't know but unlike Citroen, you will need to be sure the plastic used
is UV stable as so much oof this stuff goes milky or brown as it ages.
Brian


Acrylic is inherently UV stable. It is also inexpensive, available in
optically clear versions and can be injection moulded.

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Colin Bignell

Plastic moulding.
 

Nightjar wrote:

On 29-Nov-16 7:55 AM, Brian Gaff wrote:
I don't know but unlike Citroen, you will need to be sure the plastic used
is UV stable as so much oof this stuff goes milky or brown as it ages.
Brian


Acrylic is inherently UV stable. It is also inexpensive, available in
optically clear versions and can be injection moulded.

Can't acryllic be cast at zero pressure from precursors? I don't think
it is as strong as tthe moulded form though. But the mould would not
need any strength and would be quite cheap.

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Roger Hayter