If you’re dealing with a leaking above-ground or in-ground pool, quick fixes might seem like an appealing option. However, choosing the right material can mean the difference between a temporary patch and a long-term solution—or worse, further damage. One product that often comes up in DIY circles is Gorilla Glue. Known for its strength and versatility, Gorilla Glue has become a household staple. But can you really use Gorilla Glue to patch a pool? Let’s dive into the details.
Understanding Gorilla Glue: What Is It Designed For?
Before addressing whether Gorilla Glue can be used underwater or on pool surfaces, it’s important to understand its properties and intended applications. Gorilla Glue is a polyurethane-based adhesive known for being strong and versatile. It expands as it cures, forming a durable bond suitable for materials like wood, stone, metal, ceramic, glass, foam, and more.
Key properties of Gorilla Glue include:
- Water-resistant formula (note: not necessarily waterproof)
- Strong bonding strength across a variety of surfaces
- Expansion during curing, which helps the glue fill gaps
- Clamping required during setting for best results
However, when it comes to watery environments—especially chlorinated or pressured ones like swimming pools—Gorilla Glue has its limitations.
Why Gorilla Glue Is Not the Ideal Solution for Pool Patches
While Gorilla Glue might initially appear to have potential as a pool patch adhesive, there are several compelling reasons to avoid using it in such applications.
1. It Is Not Designed for Continuous Submersion
Gorilla Glue is marketed as water-resistant, meaning it can withstand brief contact with moisture without breaking down. However, continuous immersion—such as in a pool—is outside its intended use. The bond will eventually weaken when exposed to water pressure and chemical treatment systems that most pools rely on.
2. It Expands While Curing
Gorilla Glue’s formula expands as it sets. While this is great for filling cracks in materials like wood, it can cause problems in thin, flexible pool walls or vinyl linings. This expansion can create uneven pressure and lead to bulging or further tearing if not applied with precision.
3. Requires Dry Surface Application
Gorilla Glue works best on clean, dry surfaces. Trying to apply it in a leaky pool with moisture present—or having to apply it underwater—will drastically reduce its effectiveness. Without proper adhesion to a dry, clean surface, the bond will be weak, leading to leaks persisting or needing multiple reapplications.
4. Not Formulated for Chlorinated or Alkaline Environments
Pool water contains chlorine, algaecides, salts, and other chemicals necessary for sanitization. Most consumer adhesives, including Gorilla Glue, are not formulated to withstand these elements in the long term. Chemical breakdown will occur over time, reducing the adhesive’s durability.
5. Lacks Flexibility After Curing
Pools, especially vinyl or above-ground ones, are subject to expansion and contraction due to temperature changes and ground movement. Gorilla Glue cures rigidly, which means it can crack or pull away under even minor flexing, unlike materials designed specifically for pool repair.
When Might Gorilla Glue Work as a Temporary Fix?
Despite the clear drawbacks, some pool owners have used Gorilla Glue with limited success in emergency scenarios. It can serve as a temporary patch in dry or barely damp areas above the waterline, provided the surface is thoroughly cleaned and the glue is allowed to cure properly.
Best-Case Scenario for Gorilla Glue Use
In general, Gorilla Glue might work under specific conditions:
- A small tear above the water line
- The area can be dried completely before application
- The leak is not under significant pressure
- It is used as a stopgap measure while you obtain the proper materials for a permanent fix
Even in these cases, Gorilla Glue should never be considered a proper replacement for industry-standard pool repair products.
What Adhesives and Patches Are Recommended for Pool Repairs?
For long-term effectiveness and safety, turn to products specifically designed for pool use. These adhesives and patches are formulated to endure chlorinated water, UV exposure, and pressure over time.
1. Pool Patch Kits
Most local hardware or pool supply stores offer commercial DIY patch kits that come with patches, adhesive, sandpaper, and cleaning agents. These kits are easy to use and specifically engineered for vinyl, fiberglass, or other pool linings.
2. Underwater Epoxy
Underwater epoxies, like WaterWeld or Pool Putty Stick, are formulated to bond underwater and in wet conditions. They remain flexible after curing and can seal holes in a pinch—even without draining the water.
3. Vinyl-Specific Adhesives
Adhesives such as Tear-Aid or Loctite Clear Silicone are widely recommended for vinyl pool liners. These products cure waterproof and remain strong under pressure and sunlight exposure. They are the preferred solutions for most professional pool techs.
4. Heat Welding for Larger Repairs
For larger tears or rips in a vinyl pool, a heat welder and vinyl patching material may be necessary. These techniques provide a long-lasting fix but may require more skill and time than applying glue.
How to Apply a Proper Pool Patch: A Step-By-Step Guide
If a proper repair compound is what you’re using, here’s how to apply the patch correctly:
Step 1: Identify the Leak
Step 2: Clean the Affected Area
Remove dirt, oils, and chemicals using a clean cloth and rubbing alcohol or the solution provided in the patch kit.
Step 3: Apply Adhesive Evenly
Use a spatula or brush from the patch kit to spread the glue in a consistent layer, larger than the patch itself.
Step 4: Place the Patch
Once the adhesive is tacky, apply the patch firmly. For underwater use, select products that allow application in submerged areas.
Step 5: Allow for Proper Curing
Most pool adhesives recommend allowing the patch to cure for 24–48 hours before re-filling the pool or exposing it to heavy stress.
When to Call a Professional for Pool Repairs
If a leak is ongoing, large, recurring, or near fittings like skimmers or return jets, it may indicate a structural issue beyond DIY fixes. In such scenarios, consulting a professional:
- Can prevent damage to adjacent materials
- Can ensure the integrity of the entire structure
- Can offer warranties and expert services that long-term
Don’t risk pool damage, injury, or costly repairs by relying on improperly designed adhesives. If in doubt, seeking expert help is the best course of action.
Is Gorilla Glue Waterproof? The Misconception Explained
There’s a lot of confusion when it comes to Gorilla Glue’s waterproof abilities. While the product is water-resistant, meaning it can resist water to a point, it is not fully waterproof in industrial or commercial sense.
This distinction matters when you’re trying to patch a pool. Industrial waterproof sealants—such as those used in boating, medical, or marine applications—are designed to remain bonded and functional under continual pressure and extended exposure to submerged environments.
Differences Between Water-Resistant and Waterproof
| Property | Water-Resistant | Waterproof |
|---|---|---|
| Definition | Can resist limited moisture exposure | Designed to withstand full, continuous submersion |
| Cure Time | Often shorter, but breaks down over time | Designed for prolonged exposure |
| Chemical Resistance | Limited | Designed to resist harsh chemicals |
Applying the right definition to the correct context—especially with pool repairs—helps prevent costly mistakes.
Why Water Exposure Matters for Adhesives
Adhesive failure in wet environments is common when the wrong product is chosen. Once water infiltrates the bond line, it causes chemical changes in many polymers, leading to:
Hydrolysis:
Water molecules break down the chemical bonds, weakening the adhesive’s strength over time.
Delamination:
Layers of adhesive can separate due to moisture pressure buildup, especially with expanding formulas like Gorilla Glue.
Osmotic Blistering:
When moisture seeps into a poorly sealed bond, pressure builds, causing blisters and bond failure—a common occurrence with improper adhesives in sealed water systems.
These scientific facts further underscore why Gorilla Glue isn’t suitable for long-term pool patching.
Real Testimonials: Users Who Tried Gorilla Glue for Pools
A review of online forums like Reddit, HomeDesingTalk, and PoolForum reveals mixed experiences. Some users report short-term fixes that lasted a few weeks, but most returned to the problem quickly.
Positive Outcome
“Spotted a small tear above the waterline while refilling the pool. I dried the spot thoroughly, applied Gorilla Glue, and held it with clamps. It lasted about three weeks before I could get a proper patch.”
Negative Outcome
“Used Gorilla Glue underwater, and by the next day, the bond was already breaking. Worse, it clogged part of the filtration system.”
The consensus across multiple sources: temporary fixes only, and not recommended for submerged or chemically treated surfaces.
Conclusion: Know When to Use Gorilla Glue and When to Choose Better Alternatives
While Gorilla Glue is a popular and high-performing glue in many DIY projects, it’s not suitable for fixing a swimming pool permanently or safely underwater. Its water resistance, expansion properties, curing requirements, and sensitivity to chemicals all make it a poor choice for pool applications.
However, in very specific above-water emergencies, where drying is possible and durability is not the main goal, Gorilla Glue can offer a quick temporary patch.
For the best results, always turn to pool-specific materials and tools such as vinyl-safe glues, underwater epoxies, and professionally rated patches. These solutions provide durability, peace of mind, and long-term protection for your pool investment.
Final Word
Whether you’re managing a residential pool or a large commercial one, making the right repair decisions saves money, time, and headaches. Gorilla Glue has its place, but not at the bottom of your pool. Prioritize professional-grade materials and proper application techniques for a truly effective solution.
Can you use Gorilla Glue to patch a pool?
Gorilla Glue is not recommended for patching pools. While it is a strong and versatile adhesive, it is not specifically designed for underwater or continuously submerged applications. The glue may adhere temporarily, but it tends to degrade quickly when exposed to water for extended periods, which can lead to leaks reoccurring or the patch failing entirely.
Instead, it is best to use products explicitly made for pool repairs, such as underwater epoxies or pool-specific patch kits available at hardware or pool supply stores. These products are formulated to withstand the chemical environment of pools and maintain their integrity when submerged. For best results, follow the manufacturer’s instructions and ensure the surface is clean and dry before application.
What makes Gorilla Glue unsuitable for pool repairs?
Gorilla Glue is a polyurethane-based adhesive, which means it expands slightly as it cures and requires moisture to activate. However, once cured, it is not truly waterproof and is not designed for constant submersion or the high levels of chlorine and chemicals commonly found in swimming pools. Over time, exposure to these harsh conditions can weaken the bond, causing the adhesive to fail and leading to further damage.
Pool repair products, in contrast, are designed to endure these tough environments. Many are engineered with specialized polymers or resins that remain stable when wet and are resistant to chemical breakdown. For repairs below the waterline or on wet surfaces, using a glue or sealant specifically formulated for those conditions is essential for long-term reliability.
Are there any temporary fixes for a leaking pool using Gorilla Glue?
In a pinch, Gorilla Glue may be used as a temporary patch if no other materials are available, but its use should not be considered a permanent solution. It might provide a short-term hold for small leaks above the waterline if the area is dry and clean at the time of application. However, because it is not waterproof and can be compromised by continuous exposure to water, the effectiveness of the glue will likely be short-lived.
For temporary fixes on above-water leaks, it’s critical to allow ample curing time and keep the patch as dry as possible. Even so, long-term solutions should involve using materials designed for pool repairs. These might include silicone sealants, underwater epoxies, or vinyl patches, which are far more reliable and durable under pool conditions.
What are the best alternatives to Gorilla Glue for pool patching?
The best alternatives to Gorilla Glue for pool repairs are products specifically formulated for underwater or poolside use. These include pool patch kits with vinyl patches and PVC-compatible adhesives, underwater epoxy putties, or waterproof silicone sealants. These adhesives are designed to bond securely under wet conditions and resist degradation from chlorine and other pool chemicals.
Retailers often carry products such as Pool Patch or Aqua Repair, which have proven effectiveness for pool maintenance. These alternatives usually come with instructions tailored to the unique conditions of pool repairs and offer a much higher likelihood of success. When chosen and applied correctly, these specialized adhesives can function as either temporary or permanent fixes depending on the nature of the damage.
Can Gorilla Glue be used above the waterline on a pool?
Although Gorilla Glue might work above the waterline in dry conditions, it is still not the best choice for pool applications. The glue can create a strong bond on dry surfaces and with proper application, but due to the humid and chemical-heavy environment around pools, its longevity is still questionable. Areas above the waterline can still be exposed to splashing, moisture, and chemical vapors that may eventually compromise the glue’s adhesive qualities.
For repairs above the waterline, it’s still advisable to use sealants or adhesives rated for moisture resistance and chemical stability. Products like silicone sealants or pool-specific patching materials provide a longer-lasting solution and are more compatible with the materials used in pool construction, such as vinyl, fiberglass, or concrete.
What are the risks of using Gorilla Glue to patch a pool liner?
Using Gorilla Glue on a pool liner can pose several risks. One major concern is that the glue can cause the liner material to warp or become damaged, especially since many pool liners are made of vinyl that reacts poorly to harsh adhesives. Additionally, if the glue is not compatible with submerged environments, it may lose adhesion quickly, leading to the liner developing a bigger tear or becoming ineffective at sealing leaks.
Another risk involves the potential toxicity of Gorilla Glue when exposed to pool water. Adhesives not designed for pool use could leach harmful chemicals into the water, which may affect water chemistry and potentially harm swimmers. These factors make Gorilla Glue an unwise choice for pool liner repairs, where specialized, non-reactive products should always be used for safety and effectiveness.
How can I properly patch a pool leak temporarily?
For a temporary fix of a pool leak, begin by identifying the source and draining the water below the level of the leak. Once the spot is accessible, clean and dry the area thoroughly to ensure proper adhesion. Applying a patch made of vinyl or a waterproof material along with a waterproof adhesive or epoxy designed for underwater use can offer a reliable temporary repair.
If the leak is below the waterline and draining is not feasible, consider using an epoxy putty designed for use underwater, which can be molded and set without requiring the surface to be completely dry. While these temporary fixes can buy you time, they are not guaranteed to be permanent. For lasting results, it is wise to consult a pool professional or replace damaged components using repair supplies specifically engineered for pools.