I wish to replicate some vehicle amber indicator lenses. I assume I will make the mould from silicone rubber. What is the best casting material for these please?

The polyester is a newer addition (added at the start of this year) however the waterclear PU was in fact one of our launch products over 3 years ago. In fairness though, casting resins live in their own part of the website and so if you're dealing mainly with laminating and infusion resins (or tooling resins/gels) then you wouldn't necessarily come across the casting resins.

--Matt

Matt Statham
Easy Composites / Carbon Mods - Technical Sales