Originally Posted by
btcc93
The degree and speed of yellowing is dependant on how good the UV coating is on the material. I believe that for safety reasons it is only polycarbonate that is approved by the FIA and MSA for motorsport, the reasoning being that perspex and acrylic are brittle and shatter dangerously.
aye, acrylic has good and bad propeties. As tabetha says, it can be polished which is great, it can be thermoformed repeatedly which is handy, but, as you say it shatters like a bitch and I would never consider it in a car! Polycarb of the right thickness is genuinely bullet proof, its amazingly strong but does scratch and is very tricky to work with. Id wear the scratches though for the protection it gives.