This looks like it may be the wrong area but just installed new corian counter-tops and would like to have a polished finish. Is there any way to do this?

Here's a link to the DuPont site for Corian:

Care & Maintenance

If you want a high polish you should try micron graded abrasives. Specialty tools is one source:

Christian Owned - Solid Surface Tools Plastic Laminate & Granite Tools Concrete Finishing

Micro-Surface Finishing Products, Inc. (800) 225-3006 is quoted on the DuPont web site.

http://www.micro-surface.com/default.cfm?page_id=1

I'm not sure if rottenstone, that is used to rub wood finishes, would be fine enough or not. You might have to use fine pumice first.