Looking for the best glue for Legos? Stick here! Can you believe these awesome bricks have been around since 1949? Thanks to Ole Kirk Christiansen, a Danish carpenter, we’ve been “playing well” (that’s what “LEGO” means in Danish) for generations!

The best part? Legos are for everyone – toddlers, adults, and everyone in between. With Lego sets in over 130 countries, it’s no surprise they’re so popular!

lego bricks houses
But what about keeping our Lego masterpieces together? We need strong, reliable glue. Lucky for us, there are great options out there. Kid-friendly choices include Le-Glue or BrickShield Brick Glue Adhesive Spray. For something more heavy-duty, consider Gorilla Super Glue Gel, Rhino Heavy Duty Glue, or Krazy Glue Elmer’s Original.

So, let’s celebrate Legos and the fantastic glues that hold our creations together! Happy building!

Factors to Consider When Choosing Glue for Legos

a kid is playing lego
First and foremost, you need a glue that’s Lego-friendly, meaning it should bond well with plastic.
So, the ‘compatibility with plastic’ box needs a big green tick. You wouldn’t want a glue that’s perfect for paper but turns your Lego fortress into a slippery mess, right?

Next up, let’s talk about the glue’s presentation. You’re creating art, and art should be neat and clean. Hence, opt for a glue that dries clear to avoid any unsightly residues. White or colored residues could become a real eyesore and distract from your Lego masterpiece.

Then there’s the viscosity factor. The glue shouldn’t be too runny or too thick – you want the Goldilocks zone of ‘just right.’ This helps you control the application better and avoid unnecessary drips or blobs.

classic Lego brick

What are different types of Glue for Legos?

There are several types of glue that can be used to bond Legos plastic – acrylonitrile butadiene styrene (ABS) plastic. Some of the most common include cyanoacrylate, component epoxy, structural acrylic, and UV curable adhesives.

Whether you’re looking to permanently bond Lego pieces together or simply strengthen the connections, having a reliable glue option can make a significant difference. In this post, we will explore the top eight popular glue options for Legos, discussing their features, advantages, and considerations.

Kragle – Actually Krazy Glue Lego

Krazy Glue All Purpose
The Lego movie features a terrifying menace called ‘the Kragle’ (or as we might know it ‘krazy glue’), which is actually a tube of Krazy Glue with some letters scratched off. President/Lord Business intends to glue all the people, things, and places in the lego world together, so that they’ll never be able to be anything different.

The Lego is made of ABS plastic, and when I use the glue, it’s really sticking the pieces together.

sticking the pieces together with Kragle
sticking the pieces together with Kragle

Adhesive Power

The adhesive power of Krazy Glue is truly impressive. It securely bonds Lego pieces together, ensuring that my creations stay intact even during intense play sessions. I’ve used it to fix broken Lego structures, reinforce fragile joints, and even attach custom pieces to my builds. The results have been outstanding every time.

Quick Drying Time

What I appreciate the most about Krazy Glue is its quick drying time. It allows me to continue working on my Lego projects without long waiting periods. Once I apply the glue, it sets fast, enabling me to move on to the next step without delay. This has significantly improved my building efficiency.

Precision Applicator

Another fantastic aspect of Krazy Glue is its precision applicator. The fine tip allows me to apply the glue exactly where I need it, ensuring clean and accurate bonding. It’s especially handy when working with small Lego pieces or intricate designs that require precise glue placement.


Cleanup is a breeze with Krazy Glue. If any excess glue squeezes out during the bonding process, I simply wipe it away with a damp cloth. The glue dries clear, leaving no unsightly residue on my Lego creations. It maintains the aesthetic appeal of my builds while providing the necessary reinforcement.

Krazy Glue All Purpose
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Le-Glue — Best Lego Glue with No Block Damage

Le-Glue — Best Lego Glue with No Block Damage
The glue turned out to be exactly what I needed. It provided a sturdy bond and helped secure the pieces together, ensuring my models stayed in one piece. The best part is that it’s not permanent, so I can always disassemble the models if I want to change or rebuild them.

When the glue arrived, I noticed that the packaging was small, but I quickly realized that a little goes a long way.

Easy Application

For my Lunar space station and Rover Emoticon - Legos Lunar space station and Rover, I only needed to use a small fraction of the pouch, and it held everything together perfectly. The application was easy, and cleanup was a breeze.

I found that using toothpicks worked well for precise application. The glue had a thick, gel-like consistency, making it easy to control and apply exactly where needed. Once applied, it formed a strong bond, making my Lego structures sturdier and more durable.


Despite some initial concerns, I found that the glue worked reliably during play. It held the pieces together, even during moderate play sessions. While it may not withstand intense situations like dropping a model from a height, for everyday use and display purposes, it provided a reliable solution.

I was pleasantly surprised by the value I received from the small packaging of the glue. A little bit went a long way, allowing me to complete multiple Lego sets without using up a significant amount. It definitely offers good value for the price.

Le-Glue — Best Lego Glue with No Block Damage

Blu Tack – Perfect for Lego Miniatures

Blu Tack
I was working on a custom Lego Star Wars minifigure, modifying a clone trooper to hold a larger blaster rifle. The mini scale meant it would be tricky to get the tiny arm securely attached while maintaining poseability.

That’s when I decided to try out some white tack (poster putty) to aid in the assembly.

best glue for Legos
I rolled out a small ball of the tack between my fingers until it was flattened into a thin film.

Then I placed the minifig’s right arm on my work surface and attached the gun piece, positioning it so the hand tightly gripped the rifle handle. Once satisfied with the angle, I carefully applied the white tack strip directly onto the connection point between the arm and gun.

The thin, mildly tacky surface bonded them together nicely. I was able to gently manipulate the arm around a bit to test mobility without the pieces becoming detached. So far, so good – the white tack was sticking them together firmly yet allowed a decent range of movement as needed for a posed figure.

Next, I attached the completed arm assembly back onto the minifig body, pressing it securely into place. Again, mobility was preserved and the tack filled in any potential gaps without becoming too sticky or permanent. To complete my testing, I placed the customized clone trooper figure into some action poses. It held up very well, with no sign of the arm or gun slipping free from the subtle bond provided by the white tack glue.

Read More: white tack vs blu tack

Blu Tack

Museum Gel/Wax – Flexibility and Temporary Option

Museum Gel
Museum Gel is ideal for someone who wants to use a temporary solution like museum gel or repositionable adhesive for temporary affixing of Lego pieces.

The reason why people like it is:

  • They are working on a Lego model or creation that is not finished yet and want to hold certain pieces in place while continuing to build but may need to remove or rearrange those pieces later. Museum gel allows this.
  • They are experimenting with different designs or configurations and want to try out temporary placements of pieces before committing to a permanent solution with regular glue.
  • They want to create a model that can potentially be taken apart and rebuilt with different designs later. Museum gel preserves that flexibility.
  • They may be transporting a partially built Lego project and need pieces temporarily attached for travel without making it permanent.
  • Young children or students working on projects may benefit from the ability to freely rearrange pieces while working without worrying about gluing pieces mistakenly.

while many use regular glue for permanence, those searching for the “best lego glue” may also be open to repositionable/temporary solutions like museum gel if they need the flexibility to rearrange pieces as part of the creative process. It provides secure temporary holding without permanent bonding.

Museum Gel

Read More: museum putty vs museum wax

BrickShield Brick Glue Adhesive Spray — Excellent Protection for Your Creations

BrickShield Brick Glue Adhesive Spray — Excellent Protection for Your Creations
If you want to build non-standard creations like mosaics, tiles, or other arts and crafts projects where the pieces need to be permanently affixed rather than snapped together.

I had no intention of ever disassembling the artwork and wanted to protect it against accidental disassembly, such as falling off the wall or bumps while moving.

Against Cat

Some small building blocks can easily come apart just by holding them. But with the help of this glue spray, I’ve been able to keep my nanoblock projects intact. I had two nanoblock shark setsEmoticon - Legos nanoblock shark sets, and the first one was destroyed when my cat knocked it off the shelf. Pieces scattered everywhere, and many were lost. However, when I bought a second shark set and used this glue spray, the next morning, I found the shark on the floor again, but it remained completely intact, with only the fins detached from the body.

Good for Value

In terms of value, the price point is great, and the product is easy to use. The directions are straightforward to follow, leading to an end result that matches the description. I trust this glue spray to hold my projects together as intended.

An Important Tip

One crucial tip is to avoid touching any sprayed bricks until you are confident that the glue has fully set. Otherwise, you could inadvertently induce smudges that will become more visually apparent. Additionally, while the glue is clear, there can be some visible residue left after drying. Depending on the color and shape of the bricks used, this residue may or may not be obviously present. I noticed residue only on the completely flat, white tiles that made up the exterior matte between the artwork and the frame. On the individual bricks that comprised the artwork, no residue was noticeable.

BrickShield Brick Glue Adhesive Spray — Excellent Protection for Your Creations

Loctite Ultra Gel Control Super Glue – Repairing Older Lego Sets

Loctite Ultra Gel Control Super Glue – Repairing older Lego sets
If you want to repair older Lego sets or pieces where the friction has worn down over time and pieces no longer stay connected well. This glue can reinforce weak joints.

Gel Consistency

I’ve been using the Loctite Ultra Gel Control Super Glue for my Lego repair projects, and I must say, it has exceeded my expectations. The gel consistency is perfect for precise application, allowing me to apply just the right amount of glue without any mess or excess drips.

It forms a strong and reliable bond between the pieces, ensuring that they stay securely attached. I no longer have to worry about my Lego creations falling apart or losing pieces during play or display.

Quick Setting Time

I especially appreciate the quick setting time of this glue. Unlike other glues I’ve tried, I can hold the pieces together for just 30-60 seconds, and the bond is already formed. This saves me a lot of time and allows me to continue working on my Lego projects without unnecessary delays.

The Loctite Ultra Gel Control Super Glue also provides excellent adhesion to Lego plastic. Whether I’m repairing a cracked piece or reattaching a broken element, this glue holds everything together with great strength. It withstands the stresses of handling and play, ensuring that my Lego creations remain intact for a long time.

Long Lasting

Additionally, I have found that this glue is long-lasting. Once the bond is formed, it remains strong and durable, even under regular use and handling. I have repaired numerous Lego sets using this glue, and the repairs have held up exceptionally well over time.

Loctite Ultra Gel Control Super Glue – Repairing Older Lego Sets


puring glue on Legos blocks
In this section, we have compiled some frequently asked questions about gluing Legos together. Gluing Lego pieces can be a great way to create more permanent structures or preserve delicate designs. However, it’s important to have a clear understanding of the process and considerations involved.

We hope these answers will provide valuable insights and guidance as you explore the world of gluing Legos. Whether you’re a seasoned Lego enthusiast or a beginner, this FAQ section aims to address common queries and help you make informed decisions about gluing Legos together.

Temporary vs. Permanent Glue Solutions

What are the benefits and drawbacks of temporary and permanent glue options for Legos?

On one hand, we have permanent glues like Gorilla Super Glue. These guys are like the superheroes of adhesives, creating an unbreakable bond in just 10 to 45 seconds. They’re perfect for those Lego masterpieces you want to cherish forever, maybe a Star Wars Death Star or a Hogwarts Castle that you’ve poured hours of work into. These permanent solutions are for the Lego architects who want their creations to withstand the test of time and the occasional accidental bump or drop. But beware, once you’ve glued those pieces together, they’re staying put. No do-overs!

On the flip side, we have temporary adhesives, the shining star being Le Glue. Now, Le Glue is like the friendly neighborhood Spider-Man of glues. It’s not as heavy-duty as permanent glues, but it definitely holds its own. You can stick your Lego pieces together, and they’ll stay put. But if you decide you want to change things up, just add some warm water, and voila! Your Legos are free to be rearranged, reused, and repurposed. It’s like a magic trick!

But, just like any superhero, these glues also have their kryptonite. Permanent glues are, well, permanent. So, if you make a mistake or want to use your bricks for another masterpiece, you’re out of luck. Also, excessive use of permanent glue might potentially cause physical or chemical warping of your precious bricks.

Temporary glues, on the other hand, might not hold up to rough play or accidental knocks as well as their permanent counterparts. Also, frequent application and removal could lead to residue build-up, which might affect the fit and clutch power of your Lego bricks.

Child-Friendly Glue Options

What are some child-friendly and non-toxic glue options for Legos?

First up, meet Le Glue. It’s like the cool babysitter of Lego glues. It’s non-toxic, safe for kids, and has a nifty trick – it dissolves in warm water, leaving no icky residue. So, if your kiddo wants to redo their Lego Taj Mahal into a Lego spaceship, no worries!

Then we’ve got BrickShield Brick Glue Adhesive Spray. It’s like a magic mist that bonds Lego pieces together. It’s also non-toxic, kid-friendly, and washes off with warm water. The spray form makes it super easy to apply, even for tiny hands. Plus, it’s like giving your Lego creation a superhero shield – who doesn’t love that?

Remember, while these glues are safe and fun, they’re not snacks. Always supervise your little builders during their construction projects.

Spray Adhesive vs. Liquid Glue for Legos

What are the pros and cons of using spray adhesive vs. liquid glue for Legos?

Let’s start with spray adhesives. Picture this: You’re crafting your Lego dream castle, and you just want an even coat of adhesive that’s quick and easy to apply. Enter spray adhesive! It’s like a mist of stickiness, making sure every nook and cranny gets a share of the adhesive action. It’s super versatile, bonding to almost any material, and it becomes tacky in about 15-20 seconds – perfect for those who can’t wait to see their creations come to life!

But every superhero has a weakness, right? With spray adhesives, precision can be a challenge. You might end up spraying more than you intended, or the mist could go in places you didn’t plan. Also, you’ll need a well-ventilated area to use it, since it can get quite fumey.

Now let’s talk liquid glues. These are your traditional, reliable pals in the adhesive world. They’re great for bonding porous materials and offer more control during application. You can apply just a drop exactly where you want it, ideal for intricate Lego projects.

But, like a movie plot twist, they also have downsides. Liquid glues usually take longer to dry, which might not work well if you’re an impatient builder. And while they’re excellent for porous materials, they may not work as well on non-porous surfaces.


Best Glue for Legos
Throughout this article, we have explored the top eight glue options for Legos, each with its own unique features and advantages. Whether you prioritize flexibility, quick-drying properties, or maximum adhesion, there is a glue on this list to suit your needs.

Remember to choose a glue that is specifically designed for bonding Legos and follow the manufacturer’s instructions for optimal results.

To successfully glue Legos, proper surface preparation, precise application, and adequate drying time are crucial. By following the provided tips and tricks, you can achieve excellent results and ensure the longevity of your Lego creations.

Before embarking on your next Lego project, take the time to carefully evaluate your requirements and select the best glue option that meets your specific needs. Investing in a high-quality glue will not only enhance the structural integrity of your Lego models but also allow you to enjoy and display them with confidence.

Choose wisely, adhere securely, and let your imagination soar as you bring your Lego creations to life!