DIY — Repairing a cracked bathtub

Many people often discard their old bathtub and buy a new one at the first sign of a large crack, chip or blemish.  This is totally unnecessary and a waste of money!
A fiberglass or porcelain bathtub that is chipped or cracked can no only be an eyesore but can also be a hazard.  The chipped tub can leave a sharp edge on it which can in turn cut an innocent bystander.  Getting injured by your banged up tub is one thing but a leaking bathtub can be a totally different story.  A leaking tub can cause significant structural damage to a floor… This isn’t even taking into account what it could do to your beautiful home if it is located on the second floor!   Leaking tubs can easily ruin walls as well when the leaking water is pulled up through the wall in capillary action.

Instead of staring at a defected tub or unnecessarily buying a new one then just follow some of these simple steps in order to fix your faulty bathtub.

Things you will need:

  • Epoxy resin
  • Wet/dry sandpaper
  • Fine-grit sandpaper
  • Gel coat enamel
  • Applicator brush
  • Hairdryer
  • Paintbrush
  • Rags
  • Tungsten carbide cutter



  1. First thing to do is make sure the tub you are repairing is thoroughly cleaned.
  2. Make sure the tub is also dry before actually starting your work.  A good way to do this is by using a hairdryer to meticulously dry off the surface of the tub.
  3. Remember:  Epoxy will NOT stick to a wet surface!
  4. Widen the crack in the tub and remove any rough spots using a tungsten carbide cutter.
  5. Make the chip/crack as smooth as possible.  Remove all jagged edges to the blemish with a fine grit sandpaper.
  6. Now apply an epoxy filler.  Fill it completely and use your applicator to remove any extra epoxy using your applicator tool.
  7. Let the epoxy dry and set up for 12 hours.
  8. Sand the epoxy with your wet/dry applicator.
  9. Now wet the fine grit sandpaper and sand the repair to a smooth finish.
  10. Now apply a smooth layer of gel coat enamel.  (If the color of the enamel matches the color of your bathtub then the repair should remain fairly unnoticable.)


**With porcelain the repair process is similar with the only difference being that you use a enamel paint instead **

Follow these instructions and your porcelain/fiberglass bathtub should look the same as it did when it was brand new!

About Kiah

I received my Geography and GIS (Geographic Information Science) degrees from Appalachian State University in the Mountains of North Carolina (Go Mountaineers!!) I own and run my own GIS Mapping and Consulting company called MAPS of Carolina LLC (Mapping and Planning Services of Carolina) I also work as the head of marketing and advertising as well as SEO and social media for an online E-Commerce company based out of Harnett County, North Carolina. The company,, makes really great DIY garage storage shelving kits that are affordable and easy to install. Our kits can provide a home owner with tons of storage that they never knew that they had. I enjoy being outdoors and love to go hiking, fishing and camping. I am a travel nut and have been to Central and South America as well as all over the United States (excluding New England, parts of the midwest, and Alaska and Hawaii) I have a 7 year old female black Lab who is smarter than some humans I know. I love animals and love living in and having been raised in a rural area such as Harnett County, North Carolina. People definitely move at a slower pace around here and it is really a beautiful part of the country! Nothing like spending a day on the Cape Fear canoeing and fishing with a good buddy!
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One Response to DIY — Repairing a cracked bathtub

  1. Robby says:

    Book-marked, I enjoy your site! :)

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