How to glue glass to metal: your DIY guide

Want to learn how to glue glass to metal? It’s easier than you might think. Read on to find the best types of glue and methods for successful repairs.

Can you glue glass to metal? Absolutely!

Gluing glass to metal is no problem if you use the right adhesive. The purpose of this article is to help you make the best choice since different situations will call for different products. Here are some considerations when choosing an adhesive:

  • Will the object be subjected to outdoor conditions, moisture, or extreme temperature changes?
  • Will the item need to hold up to frequent vibration or impact?
  • Do the parts fit closely or are there small gaps to be filled?
  • Does the adhesive need to dry clear or will it need to be painted or tinted?

Answering these questions will help you make the best selection. 

Just a small amount of glue is enough for long, durable bonds between metal and glass

What is the best adhesive for glass to metal? Common methods

Let’s look at the three most common adhesives used to bond metal to glass. They are super glue, glass adhesive, and epoxy. We’ll show you the advantages of each one and how to properly apply it.

How to glue glass to metal: super glue

Super glue is likely to be found in most homes, but you may not know that super glues are not suitable for all materials. There are many different formulas, and some do not adhere to glass. You should always consult the label. 

If you use a super glue that will bond to glass and other non-porous surfaces, here are the basic instructions for an excellent bond.

  1. Clean and prepare the surfaces. Lightly sand metals that are very smooth or coated to ensure good adhesion to the glass. Ensure all surfaces are completely clean and dry before applying the glue. All parts to be bonded must be close-fitting with no gaps or voids.  
  2. Pre-fit the parts to ensure they fit closely.
  3. Apply a small amount of glue to one of the surfaces. 
  4. Immediately press the parts together. Ensure they are correctly aligned and hold them in place for about one minute.
  5. Allow the item to fully cure. For the strongest bond, leave overnight before use.
  6. Clean up. Remove wet adhesive with a damp cloth or paper towel. Remove cured adhesive with a razor blade or acetone (nail polish remover), being careful not to damage the surface. 

How to glue glass to metal: glass adhesive

Glass adhesives have the advantage of adhering to most or all types of glass. Blown glass, stained glass, or other varieties may present a challenge for some types of glue.

Using glass adhesive is much the same as using super glue, so you can follow the above directions. The only differences may be drying time and the use of a primer. While some glass adhesives are one-step, some systems require a primer or activator. 

This is a simple process of applying activator to both surfaces, allowing a minute or so for it to dry, and then applying adhesive as above.

Super Glue, Glass Adhesive, and Epoxy deliver the best results for bonding metal and glass together

How to glue glass to metal: epoxy

Epoxy is the best adhesive when gap-filling properties are required or when the dried glue will need to be sanded, drilled, or otherwise machined. It is a two-part adhesive and must be mixed before use. Once the resin and hardener components are mixed, you will have a limited working time. Consult the label because setting times can vary widely.

Once the epoxy is mixed on a disposable surface, use a plastic applicator, brush, or small putty knife to apply the epoxy to the items being bonded. Smooth it out as well as you can, then allow it to dry. Once cured, the epoxy can be sanded and painted.

Always work safely. Wear nitrile gloves and safety glasses when working with adhesives. Work in a well-ventilated area with adequate lighting. Safe workers make the best repairs.

How to glue metal to glass: top product recommendations

LePage Extreme Glue is great for those around-the-house repairs. In fact, it may become your new “go-to” adhesive. Super strong and versatile, this adhesive functions like a one-step glass glue but will bond to nearly any surface, including metal, wood, leather, and ceramics. It is impact and weather-resistant, dries crystal clear, and sets quickly without clamping.

If you need an epoxy to glue metal to glass, try LePage Gel Epoxy. It bonds to metal, glass, ceramics, wood, and many other materials. Just six minutes to a strong, rigid bond. It won’t shrink and can be tinted to match surrounding materials. This formula works great as a gap-filling adhesive or for surface repairs.

Want an epoxy for wet conditions? LePage Marine Epoxy will do the trick. It forms a high-strength bond in about two hours and can even be applied and cured underwater. Make repairs on watercraft, swimming pools, pipes, and more. It cures to an off-white finish and can be sanded or machined.