Well, it's polypropylene foam (think like styrofoam), which is not injection molding so the temps are much lower. Our steam runs at 360 but by the time it reaches inside the molding press it's more around 300 or just below. Still, more hostile than your usual environment.
oh whoops. sorry i saw Polypropylene and missed the foam part...i just jumped to the conclusion it was PP. speaking of...