Which metal does not adhere to glass

Gluing glass: glass glue tricks that stick

Filigree, bright, clear: glass is one of the favorite building materials of architects and interior designers. However, installation and repair certainly require skill. Gluing glass: We'll give you the best tips and tricks for using glass adhesives.

  1. Gluing important general information on glass
  2. Glue silicone glue to the glass
  3. Gluing the glass with superglue - is that possible?
  4. 2-component adhesive for glass: apply epoxy resin correctly
  5. Gluing glass in the bathroom - it doesn't always have to be silicone
  6. UV glue as glass glue
  7. Glass glue for the oven pane
  8. Remove residues of glass adhesive without leaving any residue

A broken vase, a metal hook on a glass shower wall, a fallen car rearview mirror - if glass breaks or something needs to be reattached, the question of the best glass adhesive is obvious: what can be used to glue glass, and how does it work best ?

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The good news first: Thanks to modern special adhesives, everyone - whether layperson or hobby craftsman - can easily learn how to use glass adhesive correctly. So you don't have to be a professional to bond glass to glass, glass to metal or glass to other materials.

Unfortunately, the question of the best glass adhesive cannot be answered across the board - it just depends on the case in question. But of course we didn't make it that easy for ourselves. We have elicited the best tips and tricks for handling glass glue from professionals who are constantly gluing glass in their everyday work.

Gluing important general information on glass

If your glass sticks, the surfaces must be clean, dry and free of grease and dust. For cleaning the glass surfaces this means:

  • Adhesive residues can usually be removed from the glass mechanically with a scraper (please be careful!).
  • A popular trick with heat-sensitive adhesives: With the help of a hair dryer, adhesive residues can be heated and removed more easily from the glass.
  • Some adhesives are also water-soluble - with a little washing-up liquid, glue residues come off even more easily.
  • Once the glue residue has been removed, you should degrease the glue. Petrol is a good way to do this. Put it on a lint-free cloth and apply the benzine to the glass.
  • As soon as the glass surfaces are degreased and cleaned, you should make sure that you no longer touch them with your hands.

Since there are many different ways to glue glass and the range of glass adhesives is large, you should read the instructions for correct use on the packaging or on the instruction leaflet. Please be sure to observe the tips on the amount of glass adhesive, fixing the surfaces, temperature and drying time.

Storage also plays a role: glass adhesive should be stored in a cool, dry place and temperatures above 30 degrees Celsius should be avoided.

Important: The packaging also contains the safety instructions that you should absolutely observe. If the use of many superglues (cyanoacrylate) is rather harmless, with some other adhesives it is necessary to wear (rubber) gloves, protective goggles and a protective mask.

Glue silicone glue to the glass

Silicone adhesives have numerous advantages, which is why they are often used for gluing glass:

  • They are particularly versatile and are particularly suitable for bonding different materials.
  • Silicone adhesives are often colorlessly transparent - a great advantage when gluing glass.
  • They defy moisture, heat, cold and chemicals.
  • Silicone hardly conducts any electricity.
  • When cured, they are non-toxic, which is why silicone adhesives are often used in aquarium construction, for example.

However, you should note that silicone glue often takes several hours to cure completely. Because of its elastic properties, many experts advise against using silicone adhesive if the application surfaces are subject to frequent vibrations. Panes of glass could then simply break out.

Gluing the glass with superglue - is that possible?

Superglues are real all-rounders and extremely popular in the household, model making and with craftsmen. But can superglues also bond glass? Yes, this is also possible with the cyanoacrylate-based adhesive - but a special superglue should be used if the glass is to last permanently.

The advantages of the small special glue for glass:

  • Superglues are easy and extremely quick to apply.
  • They are transparent and therefore ideal, for example for broken drinking glasses.
  • They are dishwasher safe and heat resistant.
  • Superglues are relatively harmless.

However, one should also note that superglue does not have a gap-filling property. It is therefore very important that the surfaces to be glued fit as precisely as possible and are very clean. The following applies: the thinner the adhesive film, the faster and stronger the bond.

2-component adhesive for glass: apply epoxy resin correctly

If a bond should be absolutely secure, a 2K adhesive (two-component adhesive) is the right one. Epoxy resin is often used because the two components are methyl methacrylate (resin) and dibenzoyl peroxide (hardener).

The curing takes around an hour for fast-curing 2K adhesives. Thereafter, tensile shear strengths of around 25 N / mm² can be achieved. What that means? Firm, very very firm!

Epoxy resin is mainly used when glass is to be bonded to other materials such as metal, plastic, aluminum or wood. Because of its gap-filling property, the roughening of the surface increases the later adhesion.

Please note: 2K adhesives are primarily for professionals because they require a bit of skill and routine to use them. Epoxy resin hardly forgives mistakes: the adhesive joints can only be corrected within the processing time - and that is no more than ten minutes.

Tip: It is essential to follow the application and safety instructions for the respective 2K adhesive! With constant use, ventilate the work rooms well, as the vapors are harmful in larger concentrations and with long-term exposure.

Gluing glass in the bathroom - it doesn't always have to be silicone

Moisture poses a particular challenge for bonds. In the bathroom, on windows and mirrors, but also outdoors, a special adhesive is therefore required. Silicone is mostly used for grouting and for bonds with permanent water contact (for example in aquariums) - but there are special assembly adhesives with enormous adhesive force especially for attaching glass, mirrors or showcases.

Assembly adhesives are particularly suitable for smooth surfaces. Additional advantages:

  • They are gap-filling up to 20 millimeters and have no shrinkage,
  • Assembly adhesives are very resistant to aging, UV radiation, weather and water,
  • they dampen vibrations and harden even when exposed to moisture.

The adhesive is applied directly from the cartridge with a cartridge gun or from the tube. If the objects to be bonded are under tension or are particularly heavy, they should definitely be supported or additionally fixed - the final strength is only achieved after up to 48 hours. Please also note the leverage!

UV glue as glass glue

Glass can also be glued reliably with the help of UV glue. UV light allows the transparent adhesive to harden quickly. Please pay attention to what the adhesive is to be used for. Especially if you stick to glass in which you want to store food, you should choose a glue that does not contain any toxic substances.

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Glass glue for the oven pane

Every now and then it actually happens: an oven window comes loose and has to be glued back on. A challenge for glue, because the oven pane has to hold up even at high temperatures.

For many silicone adhesives, heat is not a problem, but you should definitely read the product information carefully or ask a specialist at the hardware store. But you can also use high-temperature glue. This can withstand temperatures of up to 350 degrees Celsius - perfect for the oven or stove.

In this video you can see instructions on how to glue in an oven pane:

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Remove residues of glass adhesive without leaving any residue

Glues are great - as long as they work where they should. If a bit of glass glue goes wrong or old bonds need to be loosened, difficulties can certainly arise. However, most glass adhesives can be removed without leaving any residue - albeit ultimately mechanically.

As diverse as glass adhesives and their applications are (see above), so too are the approaches to removing them. Five remedies help with superglue:

  1. creeping oil (e.g. cooking oil)
  2. Detergents for textiles
  3. hot water bath with washing-up liquid
  4. Soapy water
  5. fatty skin creams