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Top 7 Best Glue for Legos

Legos are a fun and creative activity, and many people are able to make intriguing art from the pieces. Sometimes you love your creation so much that you want to preserve it, and this is where glue comes in handy. There are numerous types of glue on the market, and it’s important to find the right one so you don’t damage your Legos. Instead of leaving you on your own, this guide discovered the 5 Best Glue for Legos.

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Best Glue for Legos

Image
Product
Best Overall
Loctite Ultra Gel Control Super Glue
  • Strong adhesive
  • Shock-resistant
  • Easy to control tip
Gorilla Super Glue Gel
  • Water-resistant
  • Shock-resistant
  • Increased stability
Rhino Heavy Duty Glue – Rapidly Drying Glue
  • Water-resistant
  • Shock-resistant
  • Easy to apply
Glue Masters Professional Grade Cyanoacrylate – Low Viscosity Glue
  • Shock-resistant
  • Water-resistant
  • Easy to control flow
Krazy Glue Elmer's Original – for Young Builders
  • Water-resistant
  • Easy to apply
  • Easy to control
Le-Glue — Best Lego Glue with No Block Damage
  • Causes no damage at all to blocks
  • Leaves no residue when washed off
  • Sets and hardens quickly
BrickShield Brick Glue Adhesive Spray
  • Dries and hardens quickly
  • Can be washed off easily to dismantle bricks
  • Can be dissolved in water and reused

Our Overall #1 Rated Pick

Loctite Ultra Gel Control Super Glue

Loctite Ultra Gel Control Super Glue

Out top adhesive for Legos is the Loctite Ultra Gel Control Super Glue. This basic super glue is perfect for permanent Lego sculptures because it adheres in a short amount of time, is resistant to water and fall damage, and is easy to apply. The glue dries rapidly and forms a tight, clear seal that is not visible when applied properly.
Loctite is available in 2 oz. bottles with a dedicated applique designed to keep the glue flowing. There is no worry about clogs or blockage. Plus, the formula can be removed with a thinner but not regular household items.
The overall pros are:

  • Water-resistant
  • Shock-resistant
  • Rapid drying
  • Clear presentation
  • Works on plastic
  • Permanent adhesive

Some of the potential cons include:

  • The permanence of the adhesive

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Glue for Legos – Buying Guide

Are you short on time or just want a quick answer?

Check out our list below for a summary of our results.

  1. Loctite Ultra Gel Control Super Glue – Best Overall Glue for Legos (Our Overall #1 Pick)
  2. Gorilla Super Glue Gel
  3. Rhino Heavy Duty Glue – Rapidly Drying Glue
  4. Glue Masters Professional Grade Cyanoacrylate – Low Viscosity Glue
  5. Krazy Glue Elmer's Original – for Young Builders
  6. Le-Glue — Best Lego Glue with No Block Damage
  7. BrickShield Brick Glue Adhesive Spray — Excellent Protection for Your Creations

Glue is a unique material and not as simple as it sounds on paper. The word can refer to any nonmetallic substance used to hold two objects together, and it can be made of just about anything. This is why it’s important to know what type of glue you are buying and how well it will adhere to the plastic of your Legos.

Types of Glue for Lego

There are multiple types of glue available, and each one has its own properties and characteristics. Some work well on porous materials, while others need to be used on nonporous items like rock, stone, or plastic. The varieties you will encounter include:

  • Craft
  • Wood
  • Super (cyanoacrylate adhesives)
  • Fabric
  • Polyurethane

Out of these types, the best ones for Legos are super glue and polyurethane. These types are brittle and adhere well to nonporous substances. Options like craft, wood, and fabric need to be placed on a porous material to work well.

Application Method

Anyone who has gone to elementary school knows there are multiple forms of glue. Some are liquids, some are gels, and a few come in sticks. When you are trying to glue Legos together, you want to stick with a liquid or gel that has a narrow tip. This allows you to control where the substance lays and how much is on the brick.
Using too much glue at any given time can result in the excess dripping out the sides of two connected Legos, which makes huge mess.

How to Glue Legos Together

The process of gluing Legos is simple but requires precision. All you need are the Legos you desire and the glue of your choice. It is a good idea to have your pattern or structure chosen beforehand so you can carefully place the bricks together.
To begin, start with the base of your structure. To glue the Legos together, all you need to do is apply a small dab of liquid glue on Lego A and then carefully press Lego B to it. Depending on the type of glue you have, you will need to hold the pieces together for 5 to 15 seconds until the seal is tight.
You can then move on to your next pieces. Avoid working quickly because you will be more prone to permanent mistakes.

The Best Glue for Legos

The top best product [hide]

Loctite Ultra Gel Control Super Glue – Best Overall Glue for Legos


Loctite Ultra Gel Control Super Glue – Best Overall Glue for Legos
Loctite Ultra Gel Control Super Glue is the ideal glue for Legos because it features a control tip and is released as an easy to spread and control gel. This glue does not drip or run when it is placed and also dries rapidly to form a tight seal. This style of glue is water and corrosion-resistant, meaning it will hold its seal in a variety of conditions. It is also shock-resistance, which means your Legos stand a better chance of remaining together even if you drop the glued structure. The bottle is small yet affordable, and the glue will dry transparently so you can enjoy the look of your Legos without unnecessary glue splotches.
Technical Specifications:
  • Water-resistant
  • Does not drip or run
  • Dries transparent
Pros
Strong adhesive
Shock-resistant
Easy to control tip
Cons
Permanent
Difficult to squeeze out of tube

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Gorilla Super Glue Gel


Gorilla Super Glue Gel
The Gorilla Super Glue Gel is a long-lasting, durable option which works well for structures that are meant to be permanent. The formula is infused with rubber particles to improve stability, and the glue dries completely within 30 seconds. When applied, this formula does not run or drip so you can enjoy a clean Lego construction. This super glue gel features a narrow tip which makes it easier to control where the glue goes. The Gorilla gel is easy to use while also being resistant to water, shock, and natural corrosion. The bottle contains more formula than average while still being affordable.
Technical Specifications:
  • Dries rapidly
  • Easy to use
  • Does not run or drip
Pros
Water-resistant
Shock-resistant
Increased stability
Cons
Difficult to squeeze out of tube
Thicker consistency than normal

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Rhino Heavy Duty Glue – Rapidly Drying Glue


Rhino Heavy Duty Glue – Rapidly Drying Glue
Rhino Heavy Duty Glue is intended for people who want their Lego creations to remain fixed together permanently. It is a strong formula intended for a broad range of materials including glass, plastic, and concrete. The glue is designed to harden within seconds, creating a tight seal. This bottle contains around 2.25 oz. and has an easy to use tip. The glue is meant to be resistant to shock and water, so the Legos will not fall apart when dropped or hit with moisture.
Technical Specifications:
  • Meant for plastics
  • Dries clear
  • Bonds in seconds
Pros
Water-resistant
Shock-resistant
Easy to apply
Cons
Brittle
Strong smell

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Glue Masters Professional Grade Cyanoacrylate – Low Viscosity Glue


Glue Masters Professional Grade Cyanoacrylate – Low Viscosity Glue
The Glue Masters Professional Grade Cyanoacrylate is a powerful super glue designed to form a tight seal on materials like plastic and glass. It is available in thin, medium, and high viscosities. The low viscosity works well for Legos because the flow of the glue is easier to control than standard liquids. Like many other superglues, the Glue Masters Professional is shock and water-resistant to improve the durability of the seal. It has a control tip to manage where glue drips and forms a complete seal in 60 seconds. Plus, it includes a 60 day guarantee for returns if you are dissatisfied with the results.
Technical Specifications:
  • Available in multiple viscosities
  • Settles in 60 seconds
  • 60 day guarantee
Pros
Shock-resistant
Water-resistant
Easy to control flow
Cons
Does not glue quickly

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Krazy Glue Elmer's Original – for Young Builders


Krazy Glue Elmer's Original – for Young Builders
Krazy Glue is considered one of the most practical glue for Legos because of its ease of use and overall simplicity. This white glue is viscous and easy to wipe away, making it an excellent choice for someone who wants to experiment with semi-permanent structures. Like other glues, Krazy Glue is meant to be water-resistant. It is not shock-resistant, so structures could break upon falling. The formula is thick and meant for all kinds of materials, including plastic and wood. It stays fresh in the bottle and does not clog the applicator.
Technical Specifications:
  • Stays fresh
  • Precision application
  • Meant for plastic
Pros
Water-resistant
Easy to apply
Easy to control
Semi-permanent
Cons
Semi-permanent
Not shock-resistant

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Le-Glue — Best Lego Glue with No Block Damage


Le-Glue — Best Lego Glue with No Block Damage
Spice up your child’s creative abilities by providing a comfortable play space for them to hone their skills. When it comes to LEGO pieces, they need Le-glue to keep their pieces firmly together. With Le-glue, you can avoid the disappointment of LEGOs crashing down after hours of hard work. Le-glue is a strong temporary glue that won’t damage your Lego bricks. It is non-toxic and is packaged in a squeezable plastic container with a screw cap. The glue is an opaque sticky off-white paste that sets after an hour, cures after 24 hours, and can easily be washed off your Lego blocks with warm water. If your child needs to hold his LEGO bricks together to show off his masterpiece, you can try this out.
Technical Specifications:
  • Non-toxic and child friendly
  • Can be washed away for brick reuse
Pros
Causes no damage at all to blocks
Leaves no residue when washed off
Sets and hardens quickly
Cons
Visible in transparent bricks
Can be messy to apply
No refund or replacement policy

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BrickShield Brick Glue Adhesive Spray — Excellent Protection for Your Creations


BrickShield Brick Glue Adhesive Spray — Excellent Protection for Your Creations
Want to watch your child’s creative abilities soar? Try out Brick Shield for their LEGOS. It provides excellent protection for all LEGO creations and will stay on for as long as you want. Brick Shield is a shake and spray glue that can hold LEGO creations firmly bonded in one piece. This glue is an aerosol adhesive that, when sprayed on the built structure, forms a protective layer around the outer surface and dries up within 3-8 hours. It is also non-toxic, and can easily be washed off with warm water to dismantle the blocks. Brick Shield can be the glue of your kid’s dreams when they play with their LEGOs.
Technical Specifications:
  • Very easy to apply
  • Non-toxic and child friendly
Pros
Dries and hardens quickly
Can be washed off easily to dismantle bricks
Can be dissolved in water and reused
Cons
Can easily be wasted
Not suitable for very large creations
Can damage blocks after long use

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Glue for Lego - FAQs

Should you glue Legos together?

Although Lego encourages its buyers to not glue their Legos together, there is nothing stopping you from doing so. The catch is most adhesives will either create a permanent seal or will gradually deteriorate over time, so you need to be sure you want your Legos to remain together.

Can you dissolve the glue once the Legos are together?

Whether or not you can dissolve the glue depends on the type you use. Krazy Glue can typically be dissolved with vinegar, but a Gorilla Glue or a Loctite cannot be dissolved. This is why it’s important to choose your type of glue carefully.

Can you use wood glue on Legos?

Wood glue is typically made from PVA’s (polyvinyl acetate), which work well on porous materials and produce excellent bonds between two wooden objects. Unfortunately, this type of glue does not work well with nonporous materials such as plastic. This means if you try to use wood glue on your Legos, there is a good chance your structure will break apart. Instead of using wood glue, consider one of the options listed above.

Conclusion

Finding the best glue or adhesive for Legos all comes down to knowing what kind of structure you are interested in and how long it should last. For a permanent model, the Loctite Super Glue is an excellent choice because it holds tight regardless of external factors. If you want something temporary or semi-permanent, standard Krazy Glue or another option on this list works well.

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