Corian Countertop Tomato Stain
(Draper, UT USA)
I laid tomatoes on the corian counter to ripen. They left a yellow stain that I cannot remove. Tried 409, vinegar, hydrogen peroxide. All to no avail.
Any surface can be stained if the right substance is left on the surface long enough.
Corian Countertops are porous, so staining is possible. Like stone and quartz, stains and damage occur below the surface where regular cleaners won't do anything to remove the stain.
Man-made surfaces like quartz and Corian solid-surface tend to be more difficult to repair than stone and damage is far more often permanent, but following the procedure outlined in the Removing Granite & Marble Stains e-book
will work on any porous surface unless the stain is old or too deep.