A cracked mirror can be more than just a blemish – it can disrupt the look of your space.
Whether it’s a decorative mirror or something essential like a bathroom or vehicle mirror, fixing it yourself might be possible with the right tools.
In this guide, we’ll explore how to repair a cracked mirror and when replacement is the better option.
Can you repair a cracked mirror?
Yes, you can repair a cracked mirror with a glass repair kit. For a temporary fix, you can apply clear tape on both sides of the crack. However, it's often safer to replace it entirely.
Key Takeaways
- Minor cracks or chips in mirrors can often be repaired with adhesive or resin.
- Significant cracks or damage to the reflective surface may require replacing the mirror.
- Repairing mirrors requires careful handling and the right materials to avoid further damage.
What Causes a Mirror to Crack?
Mirrors are made of glass, and like all glass products, they can crack or break under stress. Here are some common causes of mirror damage:
Impact or Pressure
Accidental impacts, such as dropping or hitting the mirror, can cause cracks to form.
Even small impacts can cause a mirror to crack, especially if the glass is thin or the force of the impact is significant.
Temperature Fluctuations
Sudden changes in temperature can cause a mirror to crack. This can happen if a hot item is placed on a cold mirror surface or if the mirror is exposed to direct sunlight for extended periods.
Age and Wear
Over time, mirrors can weaken due to natural wear and tear. Age-related factors like wear on the frame or the backing can lead to stress on the glass, causing it to crack.
Poor Installation
Improper installation, such as using the wrong adhesives or mounting hardware, can lead to cracks in the mirror.
If the mirror is not securely attached to the wall or surface, it can shift and crack under pressure.
Can You Repair a Cracked Mirror?
The possibility of repairing a cracked mirror depends largely on the severity and type of crack.
Here’s a breakdown of when you can repair a cracked mirror and when it might be better to replace it.
Minor Surface Cracks or Chips
If the crack is superficial, meaning it’s only on the surface of the mirror and doesn’t affect the reflective layer underneath, repair might be possible.
Superficial cracks can often be filled with resin or adhesive, making them less noticeable.
How to Repair
For minor cracks or chips, you can use a mirror repair kit that includes resin or adhesive.
The resin is applied to the crack and cured under UV light or air drying, which hardens it and makes the crack less noticeable.
Cracked Mirror with Reflective Damage
If the crack extends through the reflective surface, it can be much more difficult to repair effectively.
The reflective coating is fragile, and once it’s damaged, the mirror may not be able to function as intended.
How to Repair
For this type of damage, you can attempt to repair it using a glass adhesive, but it’s often not as effective in restoring the original look.
In most cases, replacement is the best option for mirrors with reflective damage.
Deep Cracks
Deep cracks, especially those that run across the entire surface of the mirror, are often beyond repair.
In these cases, attempting to fix the crack could lead to further damage, and the result might still be an unsightly mirror.
When to Replace
If the crack is deep enough to affect the integrity of the mirror, it's better to replace it entirely. Continued use of a cracked mirror can lead to further breakage, potentially causing injury.
How to Repair a Minor Cracked Mirror
If the crack is minor and does not affect the reflective surface, you can repair it yourself with the right tools. Here's how to do it step by step:
Step 1: Clean the Mirror
Before you begin the repair, make sure the mirror is clean. Use a soft cloth and some mild cleaner to remove any dust, dirt, or grease from the surface.
Clean the crack carefully, ensuring that no debris is left behind, as this could interfere with the adhesive.
Step 2: Apply Resin or Adhesive
For a minor crack, a resin or clear adhesive will work best. These are often sold in mirror repair kits.
Follow the manufacturer’s instructions for applying the resin to the crack. Apply a thin layer of resin directly into the crack and smooth it out to fill the gap completely.
Step 3: Cure the Resin
Once the resin is applied, allow it to cure according to the instructions on the packaging. Some resins require UV light for curing, while others will cure naturally in the air.
Be sure to let it fully dry to ensure a strong bond.
Step 4: Sand and Polish
Once the resin is completely dry, you can gently sand it to smooth out any excess and polish the area.
This will help to blend the repair into the rest of the mirror and make it less noticeable.
Frequently Asked Questions
1. Can I fix a cracked mirror myself?
Yes, minor cracks can often be repaired with resin or adhesive, available in mirror repair kits. However, deep cracks or damage to the reflective surface may require replacing the mirror.
2. How much does it cost to replace a cracked mirror?
The cost to replace a cracked mirror depends on the size and type of mirror. On average, replacing a standard mirror can cost between £50 and £200, but custom mirrors may cost more.
3. Is it safe to use a cracked mirror?
Using a cracked mirror is not recommended, especially if the crack affects the reflective surface. A cracked mirror can be sharp and may break further, posing a risk of injury.
Conclusion
A cracked mirror doesn’t always have to be replaced. For minor cracks, you can often repair the mirror with the right adhesive or resin.
However, if the damage is severe, affecting the reflective surface or compromising the mirror’s structure, it’s best to replace it entirely.
Regular maintenance, proper handling, and careful installation can help prevent future damage and keep your mirrors in great condition for years to come.
If you're unsure whether your mirror can be repaired or needs replacing, it's always a good idea to consult with a professional to ensure the best course of action.