How To Fix A Ceramic Crack

By | September 11, 2022
How to Repair Cracked Tiles howtos DIY

Ceramics are brittle materials and can crack easily. They’re often used for decorative items, and even functional items such as cookware and tiles. When a ceramic product cracks, it can be a distressing sight. Fortunately, there are a few methods you can use to repair the crack and restore the ceramic to its former glory.

Steps to Fix a Ceramic Crack

Step 1: Prepare the Ceramic

The first step is to prepare the ceramic to be repaired. Start by cleaning the ceramic surface with a soft cloth and mild soap. Removing all dirt, dust, and grime will help ensure a proper bond between the ceramic and the repair materials. If the crack is small, you may need to use a file or sandpaper to make the edges of the crack slightly wider. This will help the adhesive to bond better.

Step 2: Choose an Adhesive

Once you’ve prepared the ceramic, it’s time to select an adhesive. For ceramics, the best option is a fast-curing epoxy. Choose an epoxy that is specifically designed for ceramic work, such as a two-part epoxy. This type of epoxy is designed to bond with the ceramic material and provide a strong and durable seal.

Step 3: Apply the Adhesive

To apply the adhesive, you’ll need a syringe or a small brush. Fill the syringe or brush with the epoxy, and then carefully apply it to the crack. Make sure to spread the epoxy evenly, and fill the crack completely. Once the crack is filled, allow the epoxy to cure for the amount of time specified on the package. This will usually take 24-48 hours.

Step 4: Sand and Paint

Once the adhesive has cured, it’s time to sand the ceramic. Use a fine-grit sandpaper to sand the surface of the ceramic, and then use a finer grit sandpaper to smooth out the surface. Once you’ve finished sanding, you can apply a coat of paint to the ceramic. This will help hide the crack and make the ceramic look like new.

Step 5: Use a Crack Filler

If the crack is particularly large or deep, then you may need to use a crack filler. Crack fillers come in a variety of materials, such as epoxy, plaster, and ceramic. Apply the crack filler to the crack using a syringe or brush, and then allow it to dry completely. Once dry, you can sand and paint the ceramic as before.

Tips for Fixing a Ceramic Crack

Tip 1: Avoid Heat

Ceramics are sensitive to heat, and it can cause the crack to expand or worsen. Avoid using heat when working on a ceramic item, and instead opt for cold temperatures. If you need to use a tool that produces heat, such as a soldering iron, make sure it’s cooled down before using it on the ceramic.

Tip 2: Use a Clamp

When applying the adhesive to the crack, you may need to use a clamp to hold the ceramic in place. This will help ensure that the adhesive is applied evenly and properly. If you’re using an adhesive with a curing time of 24-48 hours, use a clamp to keep the ceramic in place for the duration of the curing time.

Tip 3: Use a Drill Bit

If the crack is particularly deep, you may need to use a drill bit to make the crack wider. Using a drill bit will allow you to apply the adhesive more evenly and thoroughly. Make sure to use a drill bit of the same size as the crack, and to wear protective gear when drilling.


Fixing a ceramic crack is a relatively easy process. With the right tools and materials, you can easily restore the ceramic to its original condition. Start by preparing the ceramic, then choose an appropriate adhesive, and apply it to the crack. Once the adhesive has cured, sand and paint the ceramic, and use a crack filler if needed. By following these steps, you can ensure that the ceramic will remain durable and crack-free.