I've only cut cheap, dollar store HPDE cutting boards, and I've used a regular 2 flute spiral. I cut Corian all the time with regular router bits without any problems.
Regardless, whatever bit you choose I would experiment anyway to get your feed and speed right so you aren't melting your way through it.
Regardless, whatever bit you choose I would experiment anyway to get your feed and speed right so you aren't melting your way through it.