What is the Best Glue for Glass?

Unlike other model materials, such as wood, plastic, metal, etc., glass is a strong and versatile material that could last for many years. However, the downside with glass is that it is prone to breaking or cracking even when you are extremely cautious about handling it. On a brighter note, you don’t have to replace broken, chipped, or damaged glass on your phone screen, favorite flower vase, or the model you are building, as you can repair it with glass glue. 

When considering the durability and longevity of glass installations in your home, the right adhesive is crucial, but for larger projects, such as window replacements where professional expertise is paramount, you might want to look at more info from seasoned experts in the field.

The glue you can use for repairing glass would still depend on the glass’ type and function. Whether you are repairing a chipped or damaged figurine that you love or crafting a model of a famous landmark using glass materials, it is important to pick the best glue for glass that has the right formula and is durable and sturdy enough to stand against various humidity levels, extreme pressure, and different temperatures. Some options to consider include epoxy, silicone-based glue, and super glue – these are all multipurpose glues you can use for different materials, such as wood, plastic, and glass. 

Some of the glues listed below are the best glues for glass. 


Several glue products in the market have different ingredients and uses. So before choosing a glass glue, you must first know more about the material or the surface you’ll be working with to know what glue will work best for you. It is important to pick the best and the correct glass glue to prevent further damage, to keep your things look sturdy, clean, and brand new, and to avoid stressing out in the process. 

Epoxy, silicone, and superglue are some of the best choices available in the market for repairing chipped and broken glass. Go for superglue if you want a quick-fix option on a glass that won’t be exposed to water and pressure. On the other hand, epoxy and silicone are the ideal glues for larger projects that need weatherproofing. 

Super Glue


Super glues, also called cyanoacrylate adhesives, are great glues that can stick to almost all surfaces, including glass. Super glues are the one for you if you only have small glass chips, cracks, or breaks that need repair. 

If you want a fast-curing glue, super glue is the best choice as it can cure instantly by establishing a strong bond to hydroxyl ions found in water. This is also why superglues must not be exposed to water and extreme pressure. Since almost everything contains water, superglue would be the best option for glass repairs that require interior fixes, which won’t be exposed to high temperatures and extreme moisture. 


Unlike other glues, epoxy consists of two parts – resin and hardener. You need to mix these two to produce a chemical reaction, which induces the polymerization needed for your epoxy glue to do its job. Epoxy glue is one of the best glues for repairing glass since it has a potent adhesive that dries up to a clean and clear finish. 

After mixing the resin and hardener, epoxy glue starts hardening immediately. The downside is that this allows only a limited amount of time to use epoxy glue before making a new glue mix. On a brighter note, epoxy glue is a strong, long-lasting glue that can withstand extreme conditions. 


a hand gluing silicone on the edge of the glass

Silicone is another well-known glue for repairing glass since it is easy to apply, waterproof, and extremely flexible. They usually use silicone as a sealant in appliances, aquariums, automobiles, window frames, etc. Silicone glue has a gel-like consistency and is mildew and water resistant. 

If you want to repair a glass constantly exposed to extreme temperatures, water, and harsh elements, using silicone glue might be the best for you. 


two hands gluing a glass window

As said earlier, it is important to search more about the materials or the glass you are working with before choosing glue to know what is the best for you. You have to consider several factors such as the type of glass that needs repairing, where you will use the glue, application, bond strength, the drying time it requires, its resistance to water and extreme temperatures, and a lot more. These things help determine the efficacy of the glue on your glass repairs. 

Bond Strength 

Bond strength is the glue’s capacity to withstand extreme pressure and stress. The glue usually needs to have a peel strength and a lap shear strength to know that it is strong enough for your glass repair. 

The bond strength still depends on the type of glass you are working with. Different types of glass need different bond strengths. For instance, the glue used for windshield glass is prone to more stress than those used in picture frame glasses since a windshield is always exposed to different pressure levels. 

Drying Time 

There are different processes in the drying time of the glue. One is the setting time, which is how long it takes for the glue to harden. The other one is when the glue is cured, meaning it has already reached the maximum bond with the glass. 

Some glues set and cure almost immediately. However, there are also some that require a few days to be completely cured. 

Superglues cure almost instantly but aren’t strong as other glass glues. Epoxies might require up to seven days to cure completely, so they are not ideal for a quick-fix job. Silicone glue, on the other hand, needs only 24 hours to a few days to cure, but it would still depend on the thickness of the glass repair. 


Location is an important factor to consider when choosing a glass glue because being indoors or outdoors could impact the effectiveness of the glue that you’re using. If the glass to be repaired is outdoors, make sure you’re using a glass glue that can withstand the sun’s heat, high temperatures, and exposure to moisture and water. 

Most superglues are ideal for indoor repairs, but there are also some waterproof superglues you can use outdoors to survive extreme weather conditions. Aside from waterproof superglues, epoxy and silicone glass glues are perfect for outdoor applications since they can survive extreme temperatures and various moisture levels.

Temperature Resistance 

Glasses store heat, and extreme temperatures could reduce the strength of the adhesive. So it is essential to use the proper glue for glasses in areas that receive heat and high temperatures. For instance, when working with windshields and glass windows, you must use glue with higher resistance to extreme temperatures and weather conditions than when repairing a chipped picture frame glass. 


Glues can be either water-resistant or waterproof. Superglues are only water-resistant since it bonds to hydroxide in water. So it’s not ideal to use on glasses frequently exposed to moisture and water as the glue would likely deteriorate through time. 

Epoxies, on the other hand, could also be water-resistant or waterproof – it depends on the type of epoxy you are using. If the glass is frequently exposed or submerged in water, you should use the correct epoxy intended for those activities. One example is marine epoxy, a great glue for glass repairs constantly exposed to water. 

Lastly, silicone is a waterproof glue. It is obvious as it is usually used in bathrooms, kitchens, roofs, etc. If you are repairing a glass window, windshield, or other types of glass that are frequently exposed to water and moisture, the best glue to use is silicone glue.