Is Krazy Glue Waterproof? Here’s What You Need to Know

Krazy Glue has become a staple in many households for its versatility and strong bonding properties. But what happens when you need to use it in a water-related project? Is Krazy Glue truly waterproof? In this article, we will delve into the details to determine if Krazy Glue holds up underwater and explore its components, water-resistant qualities, durability in water, and tips for removal.

What is Krazy Glue?

Krazy Glue, chemically known as ethyl cyanoacrylate, is a non-toxic, colorless adhesive renowned for its fast-acting nature. It forms a powerful bond within minutes, making it a go-to for various surfaces like plastic, ceramic, wood, metal, and rubber. Interestingly, even a small drop of Krazy Glue can hold over 1000 pounds (453.59 kilograms) of weight.

Is Krazy Glue waterproof?

Once Krazy Glue has set and cured, it becomes completely waterproof. This water resistance is primarily due to its bonding agent, cyanoacrylate. However, it’s important to let the glue fully cure before exposing it to water.

If not properly cured, the bond may weaken and break when submerged. Therefore, it’s crucial to allow sufficient drying time before immersing your project in water.

What Makes Krazy Glue Waterproof?

The reason Krazy Glue becomes waterproof is due to its bonding agent, cyanoacrylate. Once the glue has fully set and cured before being exposed to water, the bond it creates remains intact.

It’s important to give the glued items some time to sit after bonding before submerging them in water. If not, the bond might not hold up when immersed in water.

Durability in Water

While Krazy Glue is considered waterproof, it does have its limitations in long-term water exposure. Over time, the glue may become brittle, and the bond can weaken under increased force.

Despite these limitations, Krazy Glue is commonly used for water-related repairs, such as in aquariums and bathrooms, as it offers good resistance to moisture and heat.

How to Remove Krazy Glue

Accidentally getting Krazy Glue on unintended surfaces or skin can be a common occurrence. Fortunately, there are ways to remove it.

The most effective method involves using acetone, which is commonly found in nail polish removers. When it comes to skin, gently soak the affected area in acetone to gradually break down the bond.

Moving the skin slowly and cautiously is essential to avoid damaging the skin. For removing glue from surfaces, pour acetone onto the glue or use a paper towel soaked in acetone to soften the bond for easy removal.

It’s advisable to wear protective gloves and take necessary precautions when working with acetone to prevent skin irritation.


Krazy Glue proves to be an excellent adhesive for various projects, including those involving water. Its water-resistant properties, thanks to cyanoacrylate, make it a reliable choice for fixing items like damaged bath fixtures, garden hoses, and aquarium accessories. However, it’s crucial to ensure proper curing and to understand that long-term exposure to water may weaken the bond. Remember to tightly seal the Krazy Glue container and store it correctly to preserve its potent adhesive properties. In case of accidental spills or unwanted bonds, acetone is an effective solution for removing Krazy Glue from skin or surfaces.

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