Bleach Stained Corian Countertop?

I used CLR bathroom cleaner to clean my new white countertop on my vanity and it left noticeable white stains so that I can see where I sprayed. I am so upset about it, how can I fix it? I think the top is Corian.


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Gold Post Medal for All Time! 677 Posts
July 16, 20180 found this helpful

It should clean up well with Barkeepers Friend.

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July 17, 20181 found this helpful

Things like you are experiencing make me crazy and contribute to why I hate most chemical cleaning products. I know they are important to disinfect...but still...

Corian is one of the better companies with good customer service so I suggest trying to contact them, especially if your counter is still under warrantee (they have generous warranties). Their info is:


This is a PDF from their site that talks about how to dilute bleach when cleaning for the future:

Good luck! Let us know what they say!

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July 24, 20180 found this helpful

I know that CLR is recommended for cleaning (not everyday) Corian countertops but it is possible you let it dry and maybe did not rinse it well enough as this is a crucial step - counter must be rinsed several times after using any cleaner.

  • From their website:
  • "If there are hard water marks, use a cleaner that is formulated for removing hard water such as CLR. Be sure to rinse well and dry the surface completely after cleaning."
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  • I like to use Soft Scrub but here is note from their website:
  • "Cleaning Corian sinks -- You can also use Soft Scrub and a green Scotch Brite pad to remove residue. NOTE: Do NOT use Soft Scrub on the countertop surface for everyday cleaning."
  • I would try using a little soapy water first and then rinse really well, dry and see if that takes away the dull white surface.
  • Here are a couple of links that I have used and the information is good.
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