So it's a harder type like ABS that has more (and excuse me for this, it's no pun) plasticity? I virtually rule out all the parts that I think were POMs now since apparently now it's "unpaintable" and I'm to assume it's just the matte plastic stuff in high tension areas. If it were paintable I'd assume that, say, the feet parts on Vf-25 (that aren't diecast), the double hinge for the torso to swing up for humanoid mode, and the leg tendon thingies and the gray upper arms are POM.