how to fix a cracked mirror

If you’ve ever wondered how to fix a cracked mirror without having to buy an entirely new one, then look no further. This blog post will provide you with the tips and tricks needed to fix your broken reflection. From what materials are necessary, preparing the mirror itself, applying glue correctly, sanding down any rough edges and giving it some finishing touches – this guide has got everything covered when it comes to mending that fractured-looking glass. Follow our instructions on how to fix a cracked mirror and make sure your home remains picture perfect.

Table of Contents:

Materials Needed

When it comes to fixing a cracked mirror, there are certain materials that you will need in order to get the job done. The most important item is glue; this should be specifically designed for use on glass surfaces and can usually be found at any hardware store. You’ll also need sandpaper of various grits – typically ranging from 120-220 – as well as a cloth or rag for cleaning up any excess glue or dust after sanding.

Finally, make sure that you have safety glasses handy before beginning work on your project; this will help protect your eyes from flying debris while working with broken glass. Also, ensure you have some protective gloves and full-length clothing when handling any kind of sharp objects or materials, and be sure to promptly clear away all glass fragments after use.

Prepare the surface for repair by gathering all the materials needed to fix your cracked mirror, then commence with readying it.

Preparing the Mirror

Preparing a mirror for repair can be intimidating, but it doesn’t have to be. With the right supplies and knowledge, you can easily get your mirror ready for repair in no time.


The first step is to clean the mirror with a damp cloth. Gently wipe away any particles of dirt or dust that may have settled on the glass with a damp cloth. Be sure to use gentle strokes when wiping down the glass so as not to scratch it. After you’ve concluded cleaning, ensure to dry the glass surface with a delicate towel or cloth before continuing.

Removing Adhesives:

If there are any adhesives stuck on your mirror from previous repairs, they need to be removed before continuing with your project. To do this, apply some rubbing alcohol onto a cotton swab and gently rub away at the adhesive until it comes off completely. Be careful not to scrub too hard or else you might damage the glass itself.

Sanding Edges:

After removing all adhesives from your mirror’s edges, you’ll want to sand them down using fine-grit sandpaper in order to create an even surface for glueing later on during repairs. Start by lightly sanding around each edge of the frame and then gradually increase the pressure until all surfaces are smooth and free of bumps or ridges that could interfere with proper glue application later on in your project timeline

Finally, polish up your newly cleaned and prepped mirrors by applying some car wax onto a clean rag and buffing out any remaining smudges or fingerprints left behind after cleaning earlier steps above (if applicable). Make sure not to leave streaks behind as these can cause glare when looking into reflective surfaces like mirrors.

Once your looking-glass is prepped, the subsequent phase involves affixing adhesive. With meticulous forethought and extreme precision, this venture can be a triumph.

Key Takeaway: Properly prepping a mirror for repair requires cleaning, removing adhesives, sanding the edges and polishing with car wax to ensure an even surface and reduce glare.

Applying Glue

Applying glue to a cracked mirror is an important step in the repair process. It’s essential that you use the right type of adhesive and apply it correctly, otherwise, your repair job may not last very long.

The first thing you need to do is choose an appropriate glue for the job. There are several types available, including epoxy resin, hot melt adhesives and superglue. Epoxy resin is probably the best choice for this task as it has excellent strength and durability when cured properly. Make sure you read all instructions carefully before using any type of adhesive on glass or mirrors.

Clean the area around the crack of any debris or dirt using a gentle cloth or brush before applying glue. If there are any loose pieces of glass around the crack then remove them carefully with tweezers or pliers before proceeding further.

Now it is time to start applying the glue itself, but be cautious. Utilising a brush or toothpick, apply a thin layer of adhesive over both sides of the crack with caution; be sure not to go overboard as this could lead to issues when sanding down after it has cured. Once done let it dry according to manufacturer instructions; usually overnight, before continuing with other steps in your repair project such as sanding down and finishing touches (see below).

Once the adhesive has been applied and is totally dry, you can proceed to abrade the borders of the broken reflection in order to guarantee a level surface.

Sanding Down

Sanding down is an important step in any home and garden project. It helps to smooth out rough edges, create a more even surface, and make the finished product look better. Sandpaper can be employed to refine wood, metal, plastic, or other materials for a more polished and level finish.

Prior to commencing the sanding process, be sure to pick an appropriate type of sandpaper for your task. For many projects involving wood or metal, medium-grit sandpaper may suffice; however, for plastics and other softer materials, a finer grit paper like extra-fine or ultra-fine is recommended.

Once you’ve chosen your sandpaper it’s time to get started. Begin by lightly running the paper over the surface of your project material in one direction only – this will help ensure that all areas are evenly covered and that no scratches are left behind from overlapping strokes. If there are any particularly rough patches then use a slightly heavier pressure when passing over them until they have been smoothed out completely.

With these tips in mind, hopefully, now you feel confident enough to tackle any upcoming DIY projects involving sanding down materials successfully.

Key Takeaway: Sanding down materials is a key step in any DIY project; choose the right sandpaper and use manual tools for precision, but remember to start off at low speed with power tools.

Finishing Touches

When it comes to finishing off a repair job, the last step is often the most important. Polishing your mirror with a clean cloth and buffing it until it shines again can make all the difference in how your project looks when you’re done.

a round glass on a wooden table

Start by using a soft cloth or microfiber towel to wipe away any dust or dirt from the surface of the mirror. This will help ensure that no particles are left behind during polishing, which could cause scratches on its surface.

Next, use an appropriate polish for your type of mirror – either glass cleaner for standard mirrors or silver polish for antique ones – and apply it evenly across the entire surface of the mirror. Make sure to avoid getting any polish onto other surfaces such as wood frames or walls.

Once you have applied enough polish, begin buffing in small circles with gentle pressure until you achieve a nice shine on your mirror’s surface. Be careful not to press too hard; this could damage both the frame and the glass itself if done incorrectly. If necessary, reapply more polish while continuing to buff until desired results are achieved.

Finally, take one final look at your work before calling it finished. Check around edges and corners where dirt may have accumulated during cleaning and ensure no streaks are left behind from polishing products used earlier in the process. Once everything looks perfect, pat yourself on the back; you just completed another home improvement project.

Key Takeaway: A clean, polished mirror can make all the difference in a home improvement project; buff with gentle pressure and use appropriate polish for best results.

FAQs in Relation to How to Fix a Cracked Mirror

Can you fix a cracked mirror with super glue?

Yes, you can use super glue to fix a cracked mirror. Yet, be aware that this is only a provisional remedy; using super glue to mend a broken mirror should not be seen as an enduring fix. Super glue may cause the glass to become brittle over time and lead to further cracking or shattering of the mirror. Ensuring all fragments are safely positioned before applying the adhesive and any surplus is removed with a moist cloth after the application is crucial. It is advisable to seek professional assistance for a more lasting fix.

Can you glue a broken mirror together?

It is possible to glue a broken mirror together, however, it is not recommended. The adhesive used may not be strong enough to hold the pieces in place and could cause further damage if the glass shifts or breaks again. Additionally, any imperfections in the surface of the mirror will be visible after repair, making it difficult to achieve a seamless finish. If you do decide to attempt this project, use an epoxy-based adhesive designed specifically for glass and take your time applying it evenly across both surfaces.


Learning how to fix a cracked mirror doesn’t have to be a daunting task. With the right materials, preparation and technique, you can easily fix a cracked mirror yourself in no time. Whether it’s for aesthetic or practical reasons, following these steps will help you get your mirror looking good as new. So don’t let that crack in your mirror keep you from enjoying its reflection – just follow these simple instructions and soon enough you’ll be able to proudly say “I fixed my own cracked mirror.”

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