Mold resistant silicone for under-mount sink?

fauguyFebruary 16, 2012

We had out kitchen remodeled in 2006 and went with granite counters and full granite backsplash and an under-mount stainless sink. They used GE Silicone II to seal the sink under the granite, and to "seam" the granite backsplash to the granite counter top. About 2 years after it was installed, we started to notice the silicone under the granite that connected to the sink was getting moldy, but nothing would clean it to look "clear" like it was. Now 5 years later, the silicone is all black under there (and starting to have "gaps" in the silicone) and the silicone right behind the faucet (about 8") that was used to seam the backsplash and counter is also black (though not as bad as under the sink.

Before I contact the company I used, I want to find out what is the best silicone to use for kitchens that is mold resistant?

I saw that there is now a GE Sanitary SC1700 that says "contains a fungicide that helps the cured sealant resist both mold and mildew even when exposed to prolonged hot and humid environments." Since this is for the sink, it is not a hot or humid environment, but is in contact with water and needs to be mold resistant.

Any recommendations? Thanks.

Here is a link that might be useful: GE Sanitary SC1700 Silicone

Thank you for reporting this comment. Undo

There is also another GE Silicone II K/B Supreme that is "mold-free product protection helps keep the cured caulk mold- and mildew-free and looking clean for 10 years, with regular cleaning."

Here is a link that might be useful: GE Silicone II K/B Supreme

    Bookmark   February 16, 2012 at 5:44PM
Thank you for reporting this comment. Undo


    Bookmark   February 18, 2012 at 7:34PM
Sign Up to comment
More Discussions
Help with smelly well water
Just a little background. We bought a house 3 years...
Plumbing Kohler Ceiling Tub Filler K-922
Anyone have experience installing this laminar flow...
Garden Hose iced over
Ok, I know I was stupid. I'm new to home ownership...
New under mount sink - drain off-center?
I had a new granite countertop installed with an under...
Warm water mornings on cold line for 30 secs....
We have been living in a home built in 2011 (in Canada)...
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™