Most of the sheets on easycomposites are epoxy based. They degrade and yellow in sunlight. I am sure they used to sell uv stable panels.
Carbon Wheezle are difficult to get hold of but apparently good. They used to make lots of mini parts and they have a poor reputation on mini forums back then. They discussed my requirements and were very helpful. Explained they make their stuff uv stable. But they were honest enough to telll me the job was too big.
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