If, like me, you spend a lot of time reading labels at the hardware store, you’ve probably come across both Krazy Glue and Gorilla Glue, and wondered what the difference was between the two brands. Rather than an “it depends” answer, I’ll try to break down all the differences I’ve found between the two products.
Krazy Glue is better than Gorilla Glue in terms of how widely it can be used. It is similar to super glue and is most often used when bonding together pieces that are made of the same material type. Gorilla Glue is best for bonding together pieces made up of two different material types.
Here, I discuss both Krazy and Gorilla Glue to identify which one is the strongest, and we’ll also look at which is best for specific material types, including wood, plastic, metal, and glass.
Krazy Glue vs. Gorilla Glue: Which Is Strongest?
Gorilla Glue is the strongest when bonding two different materials together, such as wood and glass. Krazy Glue is the strongest when bonding the same kinds of materials together, such as wood to wood.
When choosing a strong glue, the most critical factor is what kinds of materials will be glued together. If the glued items do not have moisture, Gorilla Glue will provide a stronger bond.
This is due to the chemical compound polyurethane, which can bond surfaces together regardless of moisture level. Gorilla Glue can glue practically any two materials together if used properly.
If moisture is present, such as in wood, Krazy Glue may be better. It contains cyanoacrylate and requires moisture to create a strong bond. Most surfaces have some moisture, so you can use Krazy Glue with almost anything.
It’s essential to understand the differences between Gorilla Glue and Krazy Glue so that you choose the best glue for your project. The two types of glue take about the same amount of time to dry (24-48 hours) and can be applied in different ways.
Both types of adhesive are slightly toxic, and you should use them in a well-ventilated area.
You should also avoid getting either glue type on bare skin. Krazy Glue can be especially dangerous as it has been known to glue a person’s fingers together. If you do get glue on your skin, try removing it with a gentle application of acetone (easily found as a nail polish remover).
Be sure to wash the skin thoroughly with soap and water afterward to remove any remaining residue.
Both brands offer a wide variety of specialty glues that may perform better on those specific surfaces. Additionally, both types of glue are available with different methods of application. You can purchase glues that are applied with a brush, a thin nozzle, or a wide applicator.
Both brands also offer single-use glue packets that make it easy to always have the correct type of glue available for your specific needs.
These Krazy Glue All-Purpose Tubes (available on Amazon.com) contain a small amount of glue that you can use to fix objects quickly.
Gorilla Glue has single-use tubes available in either clear or colored glue. This set of Gorilla Super Glue (available on Amazon.com) is easy to use and holds three grams of glue in each tube.
Should I Use Krazy Glue or Gorilla Glue for Wood?
You should use Gorilla Glue for wood. Its polyurethane mix base can completely fill in porous surfaces like wood, creating a stronger bond. Krazy Glue won’t hold the pieces together as well as Gorilla Glue.
Gluing wood items together is an everyday household use for Gorilla Glue. You can use it on anything from a children’s toy to the front porch. The active ingredients in Gorilla Glue make it a strong adhesive that is resistant to heat, making it an ideal product for use outdoors.
It is often used for repairs on building projects that require a strong product that can stand up to the elements over time (source: Resin Expert).
Gorilla Glue offers a special wood glue that is colored to match the wood better. This Gorilla Wood Glue (available on Amazon.com) is fully cured within 24 hours and is FDA compliant for indirect food contact.
Is Gorilla Glue or Krazy Glue Best for Plastic?
Krazy Glue is the best glue when working with plastic. It forms a strong bond at the molecular level that secures pieces of plastic with a tight fit. It can be used to repair small items such as toys.
There are, however, some types of plastic that it doesn’t work well on, such as polypropylene plastic which is often found in the automotive industry, and Teflon, which is often used in the kitchen as a form of non-stick cookware (source: Creative Mechanisms).
Krazy Glue is excellent for use on broken children’s toys and will form a smooth bond that is entirely safe for the child to play with once the glue has thoroughly dried.
Which Is Best for Metal: Krazy Glue or Gorilla Glue?
Krazy Glue is best for gluing metal to metal or gluing metal to another type of material. Gorilla Glue can be utilized when working with metal, but it forms a weaker bond than Krazy Glue (source: Framing Nailer’s Guide).
Krazy Glue is often used to repair outdoor objects containing metal, such as a rain gutter, screen door, or swing set. It forms a strong bond that will be resistant to the weather. You can also use it on small metal pieces, such as those found in 3D models.
Should I Use Krazy Glue or Gorilla Glue for Glass?
Krazy Glue is the better choice when gluing glass as long as the item won’t be exposed to extreme moisture or stress. As an acrylic resin, it is easy to use Krazy Glue to fill small spaces, such as chips or cracks common with glass (source: Bob Vila).
Glass repairs include fixing small cracks or chips that occur when the glass has collided with a hard object. This is common with small glass figurines that have been dropped. Krazy Glue can glue the glass figurine back together quickly and won’t leave any visible marks or drying lines.
Conclusion
When choosing glue, be sure to think about what two materials will be glued together. Krazy Glue is typically the best choice when combining materials of the same type, such as wood to wood. Gorilla Glue is a better choice when combining materials of different types, such as wood and plastic.