Asked on Nov 13, 2016

Fixing a cracked mug

by Steve
I have a favorite coffee mug that developed a crack in it's side and leaks when filled. How can I repair the leak and still be able to use the mug?
  15 answers
  • Sandra Allen Sandra Allen on Nov 14, 2016
    I found this on google. Hope it helps!!
  • Steve Steve on Nov 18, 2016
    I have used SuperGlue as suggested and so far, no leaks. I will see if it survives the Dishwasher.
    • Charlotte Charlotte on Dec 29, 2016

      I tried SuperGlue and it did not with stand hand washing with hot water, much less the dishwasher. The dishwasher literally make a big mess, undoing what I had worked so hard fixing. Good Luck

  • B B on Dec 12, 2016

    if all else fails. you can always take that mug and create a mosaic trivat for another beloved mug. 😁

  • Lynne Faulkner Lynne Faulkner on Dec 17, 2016

    Hi, if it was me I would use a product called SUGRU it is permanent, waterproof . check out their website good luck

  • Valerie Valerie on Dec 21, 2016

    I would use it for pens and pencils on my desk - that way you still get to enjoy it on a daily basis!

  • CLARA CLARA on Dec 28, 2016

    An old remedy used before super glue was around is to place the cracked item in enough whole milk to cover in sauce pan and bring to a boil. Boil for 20 to 30 minutes, then carefully take cracked item out to cool. I did this once with a saucer and it worked. It's worth a try if that is your favorite cup. I think the calcium in the milk seals the crack.

    • Alaina Alaina on Apr 11, 2023

      I looked into this. You’re close, it’s the casein. This method definitely works if done right but you should be careful with using a dishwasher after since the casein will wear down faster than glue.

  • Steve Steve on Dec 29, 2016

    My SuperGlue is still holding strong. Possibly, different brands of Superglue have different capabilities.

  • Kathi Davis Kathi Davis on Jan 01, 2017

    I would never try to use it for a coffee cup again.However you could use it to hold pencils next to the phone.My next door neighbor tried to save a baking dish one time by glueing it together,the first time she washed it(by hand) it broke in the sink and she cut her hand pretty bad and hat to get 8 stitches,and couldn't use her hand for several weeks.So so not worth taking a chance.

  • Susana Susana on Dec 06, 2018

    Get hydrogen peroxide cream from beauty supply not 3%, stronger then dunk cup, plates whatever is crazed in this solution in a plastic bucket filled with this stuff may take up to 2 weeks will eliminate dark crazing lines and repair them. Keep checking it, works on things that were painted then fired not on cold painted items.

  • Eb Eb on Jul 12, 2019

    You want a "food contact safe" product. 2 good products are:

    Dap 00688 All-Purpose Adhesive Sealant, 100% Silicone


    Sil-Bond rtv 4500,Food Grade NSF FDA RTV Silicone Sealant Adhesive

  • Eb Eb on Jul 12, 2019

    Someone also suggested "Sugru", but I can't find the post. I think that could work also, but it is expensive and you have to use it within 2 months or it dries out and becomes unusable. I bought some when it first came out, never opened the package until 6 months later and it was already dried out.

  • William jon William jon on Jun 07, 2020

    Ceramic mug fixing is very easy, if you know the right way and method. I have share a blog post a few month ago about it. Click here to visit the site.

  • Mogie Mogie on Apr 13, 2023

    Loctite Super Glue Power Gel is perfect for fixing broken mugs because the non-drip high strength formula dries to form durable and transparent bonds.