How to Fix a Broken Key With Super Glue

We’ve all experienced the frustration of a broken key, especially when we need it the most. Whether it’s a house key, a car key, or an office key, a broken key can be a real inconvenience. However, there’s no need to panic or rush to a locksmith just yet.

In this guide, we’ll explore a simple do-it-yourself method to fix a broken key using super glue. So, let’s dive in and learn how to save the day with a few simple steps.

Fix a Broken Key Properly With Super Glue

Step 1: Gather the necessary materials

Before you begin the repair process, make sure you have all the required materials on hand. Here’s a list of items you’ll need:

  • Broken key pieces
  • Super glue (cyanoacrylate adhesive)
  • Fine-grit sandpaper or a small metal file
  • A toothpick or a similar small tool
  • A clean cloth or tissue

Step 2: Prepare the broken key pieces

Take a close look at the broken key and identify the matching broken sections. It’s crucial to align the pieces properly for a successful repair. Use the fine-grit sandpaper or a small metal file to clean up the edges of the broken key pieces. This step ensures a better bond between the parts.

Step 3: Apply super glue Now comes the important part

Apply a small amount of super glue to one of the broken ends. Be cautious not to use excessive glue, as it may cause the key to become too thick and not fit into the lock properly. A little goes a long way in this case. Hold the pieces together, aligning them accurately, and press firmly for a few seconds. The super glue will quickly bond the key pieces together.

Step 4: Reinforce the repair

To strengthen the bond further, you can apply another thin layer of super glue along the entire length of the broken key junction. This extra layer adds durability to the repair and ensures a more secure fit. Again, exercise caution to avoid excessive glue.

Step 5: Allow the key to dry

After applying the super glue, let the key sit undisturbed for at least 15-20 minutes to allow the adhesive to fully dry and set. This waiting period ensures a strong and reliable bond between the key pieces.

Step 6: Test the repaired key

Once the glue has dried, carefully test the repaired key. Insert it into the lock and check if it functions smoothly. If the key feels loose or shows any signs of weakness, it might be necessary to repeat the process, reinforcing the bond with additional glue. However, if the key feels sturdy and functions as expected, congratulations! You’ve successfully fixed a broken key with super glue.

How to Fix a Key That Broke in Half

If you have a key that broke in half, don’t panic! There are a few easy ways to fix it. Start by trying to insert the broken key into the lock.

If it goes in easily, then you should be able to turn the key and unlock the door. If the broken key won’t go into the lock, then you’ll need to use a pair of pliers to remove it. Once you’ve removed the broken key from the lock, take a look at the teeth on both pieces of the key.

If they’re damaged, then you’ll need to file them down so they’re smooth again. You can use a metal file or a sharp knife for this. Now that your keys are ready, try inserting them into the lock again.

With any luck, they should fit snugly and you’ll be able to turn the key and open the door!

How to Fix a Broken Key With Super Glue


Frequently Asked Questions About Fix a Broken Key With Super Glue

Can You Fix a Snapped Key?

If you have a snapped key, it is possible to fix it. However, depending on the severity of the break, it may be necessary to replace the entire key. If the break is small and only the tip of the key has broken off, you may be able to reattach it with superglue or another adhesive.

If the break is more severe, you can try to file down the jagged edges so that they fit together more snugly, but this may not be very effective. Ultimately, if your key is severely snapped, it is best to replace it.

Can I Glue My Key Fob Back Together?

If your key fob has come apart, you may be wondering if you can simply glue it back together. The answer is maybe. If the pieces of your key fob fit snugly back together and the plastic is not cracked or damaged, then glue may work for a temporary fix.

However, keep in mind that this is only a stopgap measure and the key fob will likely need to be replaced eventually. Also, be sure to use a strong adhesive that will hold up over time.

Can I Glue My Car Key Together?

If your car key has broken in half and you’re looking to save some money by repairing it yourself, you may be wondering if glue is a viable option. The answer is maybe. Depending on the type of glue you use and the severity of the break, you may be able to temporarily fix your car key with glue.

However, it’s important to note that this is not a permanent solution and your key may break again at any time. If you decide to go ahead with this repair, we recommend using super glue or epoxy for the best results.

Can You Copy a Key That is Broken in Half?

In short, yes you can copy a key that is broken in half. However, there are a few things you need to take into account before doing so. If the break is clean and straight, then it should be a relatively simple process.

Simply place the two halves of the key into a key duplicator and make sure they are lined up correctly. The machine will do the rest. However, if the break is jagged or otherwise not clean, then it may be more difficult to get an accurate copy.

In this case, you may need to file down the edges of thekey so that it fits snugly into the duplicator. If done correctly, you should still be able to get a perfect copy of your key.

How to open a Lock with Soap and Super Glue [ Broken Key, what to do? ]


Fixing a broken key using super glue is a simple DIY solution that can save you time and money. By following these easy steps, you can repair your broken key and regain access to your home, car, or office without the need for professional assistance.

Remember, though, that this method works best for minor key breaks and should not be considered a permanent solution. For more complex key repairs or when dealing with high-security keys, it’s always advisable to consult a professional locksmith.