I love my white corian sink, but as time goes by, it gets stained more often and is harder to get white. I use Soft Scrub and let it stay on to bleach the sink, and sometimes use Bartender's Friend on tougher stains. Does the sink need to be sealed to bring it back to its original state so it won't stain so easily? If so, where/how do I find the sealant?
Thanks.

I've specialized in repairing Corian for 18 years. Corian sinks don't need to be sealed, but may benefit from being sanded and buffed to restore their luster. It is probably staining easier because of countless tiny scratches and pits. I do this type of restoration often. Soft Scrub with Bleach is good, and a countertop polish like Hope's Perfect Countertop will also help.

- Jim Heaphy, TopRepair