Author Topic: Cracked bathroom sink repair?  (Read 670 times)

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Offline bobmeister

  • Posts: 32
Cracked bathroom sink repair?
« on: October 16, 2020, 12:12 PM »
Hello all,

My bathroom sink has a hairline crack in it.  I noticed it shortly after we purchased the home 4 years ago.  Until recently, it was only a cosmetic issue, but now it has grown to the point where it will drip water through the crack.

Initially, I thought I would just replace it, but I'm not having luck finding one that's the same size.  As it's an undermount sink, the size of basin relative to the size of the cutout is critical.  (I'd rather not go to the trouble & expense of having the stone counter cut to accommodate a different size sink.)

Is is possible to repair this?  How would you handle this?
322119-0
322121-1

Thanks,
Bob
 

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Offline Alex

  • Posts: 6868
Re: Cracked bathroom sink repair?
« Reply #1 on: October 16, 2020, 12:54 PM »
You can seal the crack with a two part epoxy glue, and that will keep it watertight. For now.

But eventually the crack will become bigger due to heat expansion from the hot and cold water. 

I don't think you can stop this.

Offline JD2720

  • Posts: 1149
Re: Cracked bathroom sink repair?
« Reply #2 on: October 16, 2020, 01:09 PM »
Coat the sink with Flex Seal.

Offline Mike Goetzke

  • Posts: 591
Re: Cracked bathroom sink repair?
« Reply #3 on: October 16, 2020, 01:26 PM »
J-B Weld makes a 2-part epoxy called "Water Weld." Maybe attack it from the bottom with this. For the top maybe look into a refinishing kit?

Online usernumber1

  • Posts: 115
Re: Cracked bathroom sink repair?
« Reply #4 on: October 16, 2020, 02:45 PM »
the japanese have a philosophy and a technique but you're supposed to use gold

https://en.wikipedia.org/wiki/Kintsugi

https://mymodernmet.com/kintsugi-kintsukuroi/


I'd replace it personally, maybe a rectangular vessel sink can cover the existing opening

https://www.google.com/search?q=rectangular+vessel+sink&source=lnms&tbm=isch

Offline mkasdin

  • Posts: 360
Re: Cracked bathroom sink repair?
« Reply #5 on: October 16, 2020, 06:33 PM »
the japanese have a philosophy and a technique but you're supposed to use gold

https://en.wikipedia.org/wiki/Kintsugi

https://mymodernmet.com/kintsugi-kintsukuroi/


I'd replace it personally, maybe a rectangular vessel sink can cover the existing opening

https://www.google.com/search?q=rectangular+vessel+sink&source=lnms&tbm=isch
that’s a good idea. I would R&R the old sink, it’s not worth redoing the repair in the future and the porcelain is worn.

Offline Stan Tillinghast

  • Posts: 142
Re: Cracked bathroom sink repair?
« Reply #6 on: October 16, 2020, 08:56 PM »
I attempted a repair with epoxy in a sink repair kit; it works but looks awful. I just couldn’t smooth it out.

Offline DeformedTree

  • Posts: 971
Re: Cracked bathroom sink repair?
« Reply #7 on: October 16, 2020, 09:45 PM »
I attempted a repair with epoxy in a sink repair kit; it works but looks awful. I just couldn’t smooth it out.

Can you find any manufacture information on the sink bottom to try and track down a replacement? If it's made from a Name brand, those companies can generally get you just about anything even if pretty old as they often make the same thing for decades.  If it is no name, "sink of the month" type deal, then ......time for that bathroom remodel you haven't even started dreaming of.

Offline Dane

  • Posts: 397
Re: Cracked bathroom sink repair?
« Reply #8 on: October 17, 2020, 01:20 AM »
Make a new one:

Offline Roseland

  • Posts: 683
Re: Cracked bathroom sink repair?
« Reply #9 on: October 17, 2020, 07:06 AM »
I'd be tempted to use a liquid acrylic sealant to seal the crack from the top, and reinforce the underside with fibreglass; you don't want a basin-full of water ending up in the cabinet below if the plug hole drops out completely!

Andrew
TS55, MFT/3, OF1400, OF1010, CT26, RS100, ETS125, CXS, MFS400, DF-500, Zobos.

Offline kevinculle

  • Posts: 384
Re: Cracked bathroom sink repair?
« Reply #10 on: October 17, 2020, 08:51 AM »
That sink isn't just cracked, the cracks have propagated to the extent that the drain plumbing is likely all that is keeping the bottom from falling out.  Your time would be better spent in finding a compatible replacement than trying to patch it up.