Choosing a high-performance adhesive is only part of the job. If you want that product to work as intended next time you grab it, proper storage matters just as much as product selection. With a few simple practices, you can prevent waste, protect your materials, and make every Leech adhesive product last.

Storing Squeezable Tubes: Keep the Nozzle Clear

Squeezable tubes are common in smaller adhesive applications. These powerful formulas don’t require much to get the job done, but they can quickly dry out if stored improperly.

After each use, squeeze a small amount of adhesive directly into the cap before sealing the tube. Then, tighten the cap snugly so the adhesive flows to the edges and creates a seal at the nozzle, helping to prevent air from drying out the product inside.

This technique helps keep the nozzle clear of dried glue—one of the most common failure points when reusing partially-used adhesive.

Storing Adhesive Cartridges: Create a Natural Plug

For cartridges used with glue guns or caulking tools, you should let a small plug form at the tip to preserve the integrity of the remaining product.

Here’s how to do it:

1. After use, let a small bead of adhesive remain at the tip.
2. Allow it to dry in a clean, dry area for a few hours.
3. Before your next use, simply squeeze the tube to pop out the plug, ensuring a clean flow.

This plug blocks air and moisture from entering the cartridge—preserving the adhesive inside. Just make sure to remove any dried bits before applying the glue to a new surface.

Tip Protection Alternatives: Quick Fixes That Work

No cap? No problem. While what we have below aren’t a long-term solution, it can buy you time until the next use (or next tube). Try these simple solutions to protect your adhesive’s tip:

• Tape: Wrap a small piece of plastic or tape around the nozzle. Secure with a rubber band if needed.
• Glove Finger: Cut the finger off a rubber glove and stretch it over the tip.
• Replacement Cap: Whenever possible, use the original cap. It’s designed to provide the best seal.

Ideal Storage Temperatures for Construction Adhesives

Where you store your adhesive matters. Extreme temperatures can damage the formula, cause it to separate, or create a safety risk. Avoid tossing tubes into a toolbox or the backseat of your truck. Drastic temperature shifts can shorten product life fast.

Follow these temperature guidelines:

• Keep below 85°F: Excessive heat can break down chemical bonds.
• Avoid freezing: Adhesives may become brittle or unusable once thawed.
• Choose a dry, shaded location: Steer clear of direct sun and humidity.

Best Practices for Adhesive Storage Locations

To protect the integrity of the product, adhesives should be kept in a cool, dry, and well-ventilated space. Areas prone to excessive humidity, moisture buildup, or direct sunlight can quickly degrade the formula, especially over time.

Avoid placing adhesive containers in environments with drastic daily temperature swings such as inside a vehicle, shed, or uninsulated garage. The intense heat during the day followed by cool nighttime air can break down the product’s chemical composition, shortening shelf life and weakening bond strength. Freezing temperatures can be equally harmful, often causing separation or irreversible thickening inside the tube or cartridge.

Can You Use Expired Adhesive?

When using an expired product results are not guaranteed. In construction, we never recommend using an expired product.

Expired adhesives may appear usable, but their internal chemistry may no longer support a proper bond. 

Instead, safely dispose of it and grab a fresh tube. It’s a small price to pay for long-term performance and safety.

Stick with Storage Strategies That Work

Proper storage isn’t just about keeping your construction adhesive from drying out—it’s about protecting performance, preserving strength, and making sure your materials are ready when the job demands it. Whether you’re storing a half-used tube for the weekend or keeping a full stockpile through changing seasons, small steps like sealing nozzles, avoiding temperature swings, and choosing the right location can make a big difference.

At Leech Adhesives, we design products that are made to last—but even the best adhesive needs a little care between uses. By following these storage best practices, you’ll reduce waste, save money, and ensure reliable results every time you reach for the tube.

Have questions about storing specific adhesives or choosing the right formula for your next project? Contact our team!

Leech Adhesives. One Brand, Every Bond.

A Safety Data Sheet (SDS) is a critical document to maintain onsite for all chemicals and related products your location has onsite. This sheet is a comprehensive list of details about the chemical. It will include properties of it, including the health and physical hazards associated with it. SDS also includes information about handling, storing, and emergency response for those products. Learn to read SDS sheet information to ensure you know what you are facing.

At Leech Adhesives, you will find the safety data sheet available for all products that we offer. In keeping with compliance, these sheets provide the valuable data you need to ensure proper use, storage, and handling of these products.

What You Need to Know From an Adhesive Safety Data Sheet

Learning to read an SDS sheet is a necessary step for anyone working with adhesive products. Safety data sheets are very specific. That is, they follow a very specific formula for communicating critical information. Anyone who works with commercial-grade adhesive products should have this sheet available to them. If you are just purchasing a product for the first time, review the sheet. Learn the details of the product. Teach those details to the people who will come in contact with or use the product.

What the Sheet Looks Like

A safety data sheet for adhesive products will have several sections, broken down by critical information. The following are the sections and what they communicate:

• Section 1: This section identifies the intended use of the adhesive. It will provide contact information from the supplier. It identifies the chemical by name and property.
• Section 2: Here, you will find a clear list of all hazards known about the chemical. It will list the appropriate warning information you need to know when using the product. It will list each hazard, such as inhalation risk, and the category associated with it. This provides you with the ability to know what to do if there is a risk.
• Section 3: This section outlines what’s in the adhesive, as required under law. This will include the chemical properties, any known impurities, and any stabilizing additives.
• Section 4: This is one of the most important sections to read through with your team. Anyone using it should understand how to treat exposure. This section uses layman’s terms to provide a specific treatment protocol for someone who is not trained to handle the chemical exposure.
• Section 5: This section provides information about how to put out a fire that was caused by or involved the chemical.
• Section 6: The details in this section provide specific instructions on how to handle chemical spills, leaks, or other releases. It will outline how you need to contain that material as well as the surrounding area. It provides steps to both prevent and minimize the exposure of the chemical to people in the area, as well as how to protect the environment and property.
• Section 7: This section outlines the safe handling practices and conditions for the product. When you get a new product in, you should review this information so you know how to properly store the material. Improper storage can lead to exposure risks.
• Section 8: The following section provides more in-depth information, including exposure limits, engineering controls, and personal protective measures to protect workers who might routinely use the adhesive.
• Section 9: This section identifies the physical and chemical properties associated with the product. This section helps you to know how the product reacts to the environment.
• Section 10: This section will include any reactivity hazards the adhesive has to other chemicals, as well as the chemical stability details. This section is quite important, which is why it includes three separate areas: chemical reactivity, chemical stability, and “other” for additional information.
• Section 11: This section identifies all known toxicological factors as well as the health effects of the chemical.
• Section 12: This section includes the known risks associated with the environment if the adhesive is released into the environment.
• Section 13: In this section, you have information about how to get rid of the adhesive if you no longer need to use it. That includes proper disposal, if and when you can recycle it, as well as reclamation of the chemical, if applicable. You should never just toss the product in the trash, but instead use the directions here on how to dispose of the container.
• Section 14: This section outlines the process for shipping and transporting the chemical. For example, it will outline whether you should store it in your car or truck going from one job site to the next.
• Section 15: For this section, you need to know the safety, health, and environmental regulations related to that product, and ensure you remain in compliance in those areas.
• Section 16: This final section provides details on when and how the SDS was created.

Adhesive safety data sheets are not just one piece of paper. They tend to be 15 to 16 pages long, depending on the depth of information about the product.

Technical Data Sheets vs Safety Data Sheets

Another type of documentation available for adhesive products is a technical data sheet (TDS). This sheet provides information about the product’s technical specifications and usage.

Typically, the TDS is necessary for technicians and engineers to use so they can better understand how to use the product in the work they do. The information is product-specific, contains data on physical and chemical properties, and offers application guidelines. It outlines factors like curing time, the density of the product, and the viscosity. These are details that are often directly impactful to the way you plan to use the product. While a TDS is not a legal requirement to have on hand like an SDS, it is still a critical detail that you should have about all of the products you use.

Get the Information You Need Now

You will find all of the SDS sheets for each product we offer at Leech Adhesive available to you. Use it with confidence.

It’s a familiar scenario: you’ve prepped, applied, and aligned—only to see adhesive fail when things get a little wet. High humidity, damp surfaces, or weather exposure can disrupt the molecular structure of many adhesives, leaving behind weak and unreliable results.

For nearly a century, Leech Adhesives has engineered solvent-based solutions to combat those challenges. What began as a single batch of construction glue in 1930 has grown into a trusted, Made-in-the-USA line of adhesives, sealants, and caulks. 

At the center of our lineup is Leech F-26® Construction Adhesive—a waterproof, performance-grade formula trusted by professionals and homeowners alike for its strength, durability, and consistency in extreme environments. Short on time? Scroll down to see common questions.

No Sweat Bonds: Why Some Adhesives Don’t Mind Moisture

Why do some adhesives stand up to water while others break down? It comes down to chemistry. Waterproof adhesives are designed to resist moisture infiltration and maintain bond strength under constant exposure. Here’s how:

The Leech F-26® Advantage: Dependable Bonds in Damp Conditions

With F-26®, science meets performance. It was the first adhesive to surpass APA AFG-01 standards for gluing plywood to wood flooring joists. But that’s just the beginning.

• Wet & Frozen Application: Bonds even on wet or frozen surfaces.
  
• All-Weather Formula: Works in temps from 0⁰F to 120⁰F; once cured, it holds strong from -20⁰F to 150⁰F.
  
• Shockproof & Gap-Filling: Resistant to vibration and flexing. Fills gaps for stronger adhesion on irregular surfaces.
• Strength Over Time: Bond strength increases with age, providing unmatched long-term durability.

Real-World Applications

Some jobs demand a waterproof, vibration-resistant adhesive. Here’s where F-26® excels:

• Subfloors: Eliminates squeaks and stays flexible in damp conditions.
  
• Decks & Treated Lumber: Excels in fluctuating outdoor environments.
  
• Rock, Concrete & Pavers: Ideal for hardscape projects exposed to the elements.
  
• Insulation Installation: Bonds fiberglass and fiberboard while filling voids for solid insulation adhesion.
  
• Doors, Moldings & Stair Treads: Delivers strong, lasting bonds on both wood and metal, with excellent aging quality.
• New Build & Remodeling: What the pros use for both interior & exterior projects

Trust the Tube That Gets It Done

When weather, wear, and water threaten to derail your project, professionals trust one tube: F-26® Construction Adhesive. It’s the go-to solution for jobs that demand strength, durability, and moisture resistance. 

Need technical help or product recommendations? Contact us with your questions.

Stick with Leech. One Brand, Every Bond.

FAQs: Leech F-26® and Moisture

Q: Can Leech F-26® be applied to wet or frozen surfaces?

A: Yes. F-26® is engineered for real-world conditions and can bond to wet or frozen surfaces, making it ideal for outdoor or jobsite use in unpredictable weather.

Q: What temperatures can F-26® handle during and after application?

A: It can be applied in temperatures from 0°F to 120°F. Once cured, it remains effective in a range from -20°F to 150°F.

Q: What materials does F-26® bond best with?

A: F-26® works on a wide variety of surfaces including wood, treated lumber, concrete, metal, fiberglass, fiberboard, insulation materials, and more. Learn more about capabilities! If your projects include vinyl, soft plastics, or tub surrounds, check out our F-13® construction adhesive. 

Q: Does it fill gaps or irregular surfaces?

A: Yes. F-26® has excellent gap-filling properties, making it ideal for bonding uneven surfaces or bridging small voids.

Q: Is it suitable for long-term outdoor use?

A: Yes. It’s formulated to withstand weather extremes, UV exposure, and moisture, providing long-term durability for decks, subfloors, and outdoor masonry.

The Role of Adhesives in Modern Construction

The construction industry has evolved dramatically over the last century, shifting from purely mechanical fastening methods to smarter, more efficient bonding solutions. While traditional tools like screws and nails still have their place, the rise of high-performance construction adhesives has introduced new possibilities in strength, versatility, design, and speed.

Advantages Over Traditional Fastening Methods

​​In the past, construction relied heavily on screws, nails, and bolts to hold materials together. While these methods are still useful in certain scenarios, modern adhesives offer a more advanced solution. 

Strength and Durability

With quality adhesives, the load is distributed across the surface rather than focused at one point via traditional fasteners. That means fewer stress points, better vibration absorption, and a build that resists common issues like screw pops or material splits.

Aesthetic Freedom

Adhesives allow for cleaner, smoother finishes—no visible hardware, no patching, no visual interruptions. Whether you’re installing decorative wall panels or seamless flooring, adhesives preserve the design while reducing cleanup and finishing work.

Faster, Safer, More Efficient

Because adhesives reduce the need for mechanical fasteners, installation is quicker, cleaner, and often safer. There’s less drilling, fewer tools, and less risk of damage to materials. Adhesives are also lighter, which helps in overhead or delicate work.

Ultimate Versatility

From bonding glass to metal, securing wood over concrete, or attaching paneling in complex layouts—adhesives expand what’s possible. They handle dissimilar materials and varying conditions in ways that fasteners often cannot.

Modern Adhesive Chemistry

Here’s what different adhesive types offer and when to use them:

Adhesives in Action

Structural Bonding

Think of this as the backbone of modern construction. High-strength adhesives like epoxies and polyurethanes aren’t just holding things together—they’re reinforcing critical load-bearing elements. Whether it’s bonding concrete slabs or locking steel bars in place, these adhesives create structural connections you can count on.

Facade and Glazing Systems

Ever admired a sleek glass building with no visible fasteners? That clean, uninterrupted look is brought to you by structural silicone adhesives. They don’t just hold massive glass panels in place—they flex with wind, absorb thermal shifts, and deliver that smooth, high-design finish architects dream about.

Insulation and Sealing

It’s not flashy, but it’s crucial. Adhesives keep buildings comfortable and efficient by creating airtight, watertight seals. From roofing membranes to insulation boards, they help block drafts, moisture, and energy loss—saving more than just your electric bill.

Flooring and Finishing

When it comes to floors and finishes, adhesives are the unsung heroes. From vinyl and hardwood to tile and trim, they keep everything locked in and looking sharp—no creaks, no cracks, no kidding.

Prefabricated Construction

Adhesives are MVPs in the prefab world. By speeding up assembly and cutting down on mechanical fasteners, they help manufacturers produce stronger, cleaner, and more precise components—delivered ready to install with confidence.

Real‑World Applications of Modern Adhesives

These are some common project types where using the right adhesive makes a real difference:

• Subfloors (eliminating squeaks, improving long-term hold)

• Decorative paneling and drywall

• Outdoor fixtures, siding, and decks

• Masonry and stone veneers

• Metal trims, thresholds, and moldings

Adhesives That Set the Standard

Since 1930, Leech Adhesives has delivered trusted performance across construction, remodeling, and repair. Our products are engineered for real jobsite conditions and deliver long-term hold, flexibility, and resistance to moisture, vibration, and temperature changes.

Whether you’re bonding subfloors, installing fixtures, or joining dissimilar materials, Leech has a proven solution built to perform. 

See Our Products

Choose the Best Adhesive for Your Project

Adhesives aren’t just accessories—they’re foundational components in modern construction. Choosing the right chemistry, understanding your materials and environment, and following best practices can mean the difference between a floor that creaks after a season and one that holds together for decades.

Stick with Leech. One Brand, Every Bond.

A properly placed mirror can enhance the feel of any space. From offices to bathrooms, they not only add functionality but also help make the space feel larger. However, mirrors are tricky. Not installed properly, and they come crashing down. That could happen right away. It could happen a week later.

It’s important to note that many construction adhesives, including some silicones, may not be compatible with the silvered backing of mirrors and can cause it to fail or be damaged over time. 

For mirror installation, we recommend our F-13® construction adhesive. 

Why? Because F-13® is specifically formulated to cure at lower temperatures, making it the ideal choice for delicate or burn-sensitive substrates like mirrors. Its quick grab, flexible hold, and water resistance make it perfect for secure, lasting mirror installations without compromising aesthetics.

Using the right technique is crucial for a lasting and safe results when installing mirrors. As a leader in professional-grade adhesives, Leech Adhesives is committed to helping builders, contractors, and homeowners achieve reliable results on every project. 

Disclaimer: Our recommendations for adhesive use in this application are based on tests believed to be reliable. We make no guarantee or warranty, expressed or implied, as to such use or the results to be obtained. 

Moisture Is the Enemy

If you don’t want a mirror to fall, don’t place it in an area where there’s significant moisture. That’s a problem, though. Mirrors are commonly in wet environments like bathrooms – have you ever been in a bathroom with no mirror? It doesn’t feel right. As a result, you need to consider a few strategies to make moisture less of a problem.

Moisture can damage a mirror, leaving the silver backing damaged, creating stain marks and a black edge along the surface. To avoid this, follow these tips:

Prepare for a Dry Install

Keep the area dry for several days before and at least 24 hours after installing the mirror. This is crucial for allowing the adhesive to cure properly before any moisture is introduced.

Seal the Bottom Edge

Seal the bottom of the mirror with silicone. This is a vital step, especially for mirrors over sinks, as it prevents moisture from getting under the glass and causing damage to that vulnerable edge.

Know Your Adhesive’s Rules

Always read the label to know the exact curing time for your specific adhesive. Do not introduce any moisture to the area until the glue is fully cured, which may be longer than 24 hours.

Carefully Consider Size

Huge mirrors can be statement pieces, but they are also highly risky to install. If you’re installing a mirror that’s more than 48 inches wide, you’ll need more than adhesive and hope to hold it in place. A built wooden structure to support the mirror becomes critical.

There are various reasons for that. For example, most interior walls are never going to be fully flat. Small areas of unevenness are forgivable. However, the wider the mirror is, the less it can tolerate those areas. This leads to distortion in images and could create problems for adhesives to hold it in place over time.

It’s often better to choose several mirrors to cover the expansiveness of a hallway or larger wall instead of a single mirror. There’s far less weight demand on the drywall. There’s also less risk of the adhesive losing its grip.

Mirror Installation Tips

Now that you have the foundation of mirror installation, let’s talk about the actual process that’s necessary. Focus on getting these steps right (don’t rush it!) to minimize the risk of falls.

Keep it dry

If you’re installing a mirror in the bathroom, keep that space off-limits for a day or two prior to the installation. Make sure there’s no moisture in the area. Ideally, you’ll want to keep the temperature in the space between 60 and 85 degrees Fahrenheit until the glue cures.

Prepare the wall

After wiping down the surface, prime over the drywall and plaster surfaces. By doing this, you create an even base to support the installation process. Priming the drywall and plaster should occur no matter where you plan to install the mirror.

Sand down glossy painted surfaces

If you’re placing the mirror on a surface that was previously painted, especially if it is a shiny or gloss paint, it’s critical to sand down the surface. That gloss makes it far more challenging for the adhesive to hold in place. After you sand it down thoroughly, there should be no sheen left on the surface.

Clean the surfaces

Next, clean the surface of the wall to remove any dust, debris, sanded drywall, or other substances. Don’t wet it – just wipe it down or use a hand-held vacuum to pull off any particles. This should be done right before you plan to place the mirror.

Clean the back of the mirror next. Again, remove anything that’s not supposed to be there. Stickers, debris, and dust all create points where the adhesive cannot hold onto the surface properly. By removing it, you create more of a hold on the adhesive.

Don’t Rush the Process

The final thing to remember is not to rush the process. This isn’t a simple project. By putting a bit more time into it, you reduce the risk of problems down the road, including that mirror crashing to the ground.

Why Choose F-13® for Interior and Light-Duty Construction Applications?

F-13® Construction Adhesive is the go-to choice for precision, flexibility, and ease in interior and light-duty construction work. Specifically formulated for bonding materials like polystyrene foam, tub enclosures, drywall, paneling, and plywood, F-13® delivers strong performance where reliability matters most.

What sets F-13® apart?

• Versatile Application: Ideal for foam panels, tub surrounds, drywall, plywood, paneling, and even metal.
• Water Resistant: Built to hold up in moist environments without deteriorating.
• Stays Flexible: Retains ductility over time—resisting brittleness and cracking.
• Quick Bond Strength: Offers a strong initial hold and a generous 10-20 minute working time.
• Cold-Weather Friendly: Applies and cures in temperatures as low as 0°F.
• Industry Tested: Exceeds ASTM C557 and ASTM 572-3 specifications for quality and strength.

Whether you’re tackling a bathroom renovation, installing foam board insulation, or hanging decorative paneling, F-13® delivers dependable results without the hassle of overly rigid products. It’s engineered to make your job easier—especially when precision, flexibility, and moisture resistance matter.

Explore our full product lineup or contact our team for help choosing the right solution for your next job.

Stick with Leech. One Brand, Every Bond.