Acrylonitrile styrene acrylate

Then we have to change the base chemistry entirely.

We step up to the classic engineering plastics, ABS and ASA

Let's start with ABS

Acrylonitrile butadiene styrene, also known as the exact same plastic used to manufacture Lego bricks

Which is really annoying if you wanna make outdoor parts

Right.

Which leads us to its direct successor, ASA

ASA solves the outdoor problem perfectly.