SealBoss News / Blog

Crack Injection

Water Stop / Leak Sealing Crack Injection
and Structural Crack Injection

What is Crack Injection?

The process of Crack Injection involves injecting an adhesive chemical grout or resin to connect and seal a cracked foundation, slab or wall.

If left untreated, cracks in concrete structures will grow larger over time leading to more destruction and rebar corrosion.

Crack Injection, in infrastructure terms, is the application of a chemical grout, resin or bonding agent into a substrate to repair, seal, permeate and consolidate the substrate to extend the design life of a structure.

Crack Injection can be Grouped into Two Subcategories

The term crack injection, specifically concrete crack injection, covers a variety of injection techniques primarily used in infrastructure waterproofing repairs and structural concrete repairs.

Category 1
Water Stop and Leak Sealing Crack Injection

Injection methods designed to prevent water ingress and migration are subcategory of crack injection known as chemical grouting — referring to the gels, resins and foams as chemical grouts. Chemical grouts include polyurethane resins and acrylic resins. These products are designed to work well in a wet environments. Water stop foams react on contact with water and expand to stop high velocity water flow. Polyurethane resins form semi rigid or flexible seals to permanently prevent water migration.

Category 2
Structural Crack Injection

Methods and products designed to structurally repair concrete are combined in another subcategory of crack injection, known as epoxy crack injection. Epoxy resin adhesives, categorized by strength, viscosity and gel-times, provide outstanding structural properties — a prerequisite for use as a prime load-bearing cracked concrete repair solution.

Powerful Polymers – Comparing Two Categories of Crack Injection Chemical Grouts

Hydrophobic and hydrophilic polyurethane based chemical grouts and structural epoxy based resins are the two major product groups used for crack injection. To better understand the characteristics and differences, please refer to our product comparison called ‘The Crack Injection Superheroes’.

Learn More

Please don’t hesitate to call us at 714-662-4445 with any questions, or request to be contacted here, we look forward to helping you find a solution and make your waterproofing job a painless procedure. If you need rapid results – on-site support from knowledgeable and experienced technical reps is available upon request. Check out our Crack Injection Kits.

Popular Crack Injection Links

Contact Your SealBoss ® Technician

SealBoss 1510 Water Stop Foam Customer Test

Watch the Video

SealBoss 1510 Water Stop Foam Customer Test

Brad of Pro Bond Systems Shares His Own Test of SealBoss 1510

– So we did two injections, we injected it with 1510 with 10% accelerator and we noticed that it worked perfect.

SealBoss Water Stop Foam

Tunnel Segment Injection Repair

Mock-up Repair of a Tunnel Segment Using Polyurethane Foam Injection

Introduction
Within the intricate domain of tunnel leak sealing, polyurethane foam injection stands out for its effectiveness in tackling cracks and leaks.

This case study of a mock-up repair delves into the practical application of this method, exploring how a single tunnel segment was successfully leak seal injected with SealBoss 1510 water stop leak seal foam using specialized equipment.

Objective – Tunnel Segment Injection Repair
To seal a crack in its entirety and to its full depth, in a single tunnel segment, using polyurethane foam injection.

Methodology

Problem Identification
A prominent crack was identified in the tunnel segment, making it a prime candidate for repair. To simulate real-world scenarios, the crack was pre-injected with water to mimic a leak.

Equipment & Material Selection

Pump
SealBoss P2002 Injection Pump, known for its reliability and efficacy in such repair scenarios. The SealBoss P2002 Polyurethane Injection Pump boasts a compact design with an integrated stand. Remarkably lightweight yet powerful, it is compatible with most SealBoss® polyurethane products with viscosities between 10 and 1000 cps. This professional-grade pump offers outstanding output and pressure. Its modular design ensures low maintenance and easy cleaning.

Injection Packer
The SealBoss Evolution Long Aluminum Packer was chosen, a leading choice for deep, angled injections. or a successful injection process, mechanical injection packers and ports are crucial. Our extensive stock is curated to cater to diverse client needs, promising timely deliveries.

Foam
SealBoss 1510 Water Stop Leak Seal Foam, recognized for its water-stopping capabilities. SealBoss 1510, commonly referred to as 1510 Water Stop Foam, stands out as our premier and best-selling grout for addressing water leaks in a majority of crack injection contexts. When combined with 15x Accelerator, this hydrophobic, water-activated grout transforms into a foam seal based on MDI polyurethane. Furthermore, this resin is entirely solvent-free and composed of 100% solids.

Injection Strategy
A singular injection packer was placed at a precise angle towards the crack. This strategic positioning was critical to ensuring the foam could reach the full depth of the crack and seal it effectively.

Execution
With the equipment set and the crack prepped, the SealBoss 1510 foam was injected using the SealBoss P2002 pump through the SealBoss Evolution packer. The foam’s expansive properties, coupled with the angled placement of the injection packer, ensured the material filled the entire crack from depth to surface.

Outcome – Tunnel Segment Injection Repair

Upon completion of the injection process, a thorough inspection was conducted to verify the effectiveness of the repair. The results were clear – the crack had been sealed entirely, with complete, uninterrupted foam penetration along the perimeter.

Key Learnings

Strategic Packer Placement
The success of this repair underscored the importance of correctly positioning the injection packer. An angled approach ensured the foam covered the crack’s entire depth.

Reliable Equipment
The SealBoss P2002 injection pump and SealBoss Evolution packer proved indispensable, delivering the foam efficiently to the target site.

Efficacy of SealBoss 1510
This particular foam showcased its prowess in stopping water ingress, highlighting its potential as a top-tier solution for tunnel repairs.

Conclusion
This case study stands as a testament to the efficacy of polyurethane foam injections in tunnel repair scenarios. When executed with precision and the right equipment, even a single injection point can address extensive cracks, ensuring the longevity and safety of critical infrastructure like tunnels.

Tunnel Segment Injection Repair and other SealBoss Tunnel Sealing Solutions

Tunnel Injection Repair Equipment

SealBoss ® 1510

Leak-Seal Foam Grout
Water Stop Foam Grout
Hydrophobic Injection Foam Grout

Our #1 Selling Polyurethane Injection Foam
Water Cut-Off Injection Grout
Unregulated for transport. Drinking Water Contact meets NSF/ANSI 61 Section 5 requirements. 1510 PU Foam & Oakum Pipe Plug Kit

Contact Your SealBoss ® Technician

Basement Crack Injection Kit

Basement Crack
Injection Kit
Pro P2002

Basement Crack Injection Kit – The Ultimate Solution for Leak Sealing and Repair

Tracing the Root Cause

The culprits behind basement cracks often lie in the settlement of backfill or inadequate soil conditions. The resulting stress cracks can pave the way for unwelcome moisture intrusion, leading to further damages and the development of mold and unsightly damage over time.

A Comprehensive Crack Repair System

Enter the SealBoss Basement Crack Injection Kit, your ultimate weapon against leaks. This kit simplifies the repair process by delivering an effective, user-friendly solution to stop water in its tracks. The cured seal is airtight, watertight, and hydrophobic, deterring water incursion with utmost efficiency.

Our easy to use kit comprises a SealBoss P2002 high-pressure injection pump, SealBoss 1510 Water Stop Foam hydrophobic resin coupled with a 15x catalyst, and SealBoss Mechanical Injection Packers. When used in unison, these tools empower you to counteract hydrostatic pressure and fill the crack with a specialized water activated polyurethane foam that reacts with the existing moisture.

For complex structural repairs, consider employing the SealBoss Epoxy Injection System and Epoxy Repair Kits. For an in-depth comparison of the two systems, we invite you to explore our article on Epoxy versus Polyurethane.

Crack injections can conveniently be performed from within the structure (aka negative side repair), saving you both time and labor.

Leak Sealing Crack Repair Procedure

We put our Crack Injection Kit to work in a residential basement structure that had three prominent cracks showing signs of moisture intrusion. Signs of a previous unsuccessful repair attempt were also evident.

Post a thorough cleaning and strategic planning, we embarked on the repair process using our 1, 2, 3, 45 Degree Injection Guidelines, initiating with hole placement. The positive movement of water from drill hole to crack and inter-hole travel confirmed the readiness for the crack to be sealed.

The cracks, being approximately 3/8” wide, demanded a slowed injection to prevent wastage and overfill. As the catalyzed 1510 hydrophobic resin flowed from the crack, we employed a spray bottle to expedite the hydro-active reaction of the SealBoss 1510, allowing the foam to seal the crack surface as it cured.

One significant vertical crack had penetrated the foundation and was visible above ground. This crack was treated with foam from the floor up to 12” below the sill plate. The exterior was sealed to guide the expansion and avert exterior leakage. All cracks were sealed successfully, with surplus foam removed to prepare the structure for subsequent treatments, including aesthetic improvements.

Please note, we highly recommend consulting a specialist to investigate and correct any underlying and ongoing causes of structural damages, crack formation, and settling — including, but not limited to, backfill settlement and poor soil density.

SealBoss Water Stop & Leak Sealing Injection Pro Kit

Basement Crack Injection Kit

Injection Resin: SealBoss 1510 w/ 15x Accelerator
Injection Packers: 1/2” 13-100 Evolution Aluminum Packers
High Pressure Pump: P2002 Single Component Injection Pump
Cleaning: R70 Pump Flush

Other Tools Used

Cleaning Materials: Xylene, rags, bucket
Additional Tools: 18” x 1/2″ drill bit — 3/8” Crescent Wrench — Dead Blow Hammer
Hammer Drill — Access 110v Power —
Vacuum

Enjoy Peace of Mind with the SealBoss Concrete Solutions

With our Basement Crack Injection Kit, not only do you have an effective repair solution at your fingertips, but also a path to restore your basement’s integrity and aesthetics. Gone are the days of continually battling the damaging effects of moisture intrusion. Instead, look forward to the assurance of a drier and healthier environment.

Remember that it’s crucial to address any root causes contributing to your basement’s damage. Regular maintenance, appropriate landscaping, and proper drainage can play a significant role in preventing cracks and leaks in the future. If you’re unsure about these aspects, we recommend involving a professional to help you take the right steps.

Your Partner in Crack Repair

We’re more than just providers of crack repair solutions. At SealBoss, we’re committed to being your partner in navigating basement repairs. From understanding the nuances of polyurethane and epoxy, making the right product choice, to walking you through the repair process, we’re with you every step of the way.

Need technical support, additional information, or advice on our products? Don’t hesitate to reach out to us. We’re here to ensure you have everything you need to succeed in your repair projects and maintain the health and longevity of your structure. Trust in us, because with SealBoss, successful basement restoration begins.

Comprehensive Solutions for All Sizes

We understand that not all repair jobs require extensive tools and materials. For those smaller tasks, check out our tailored Small Job Kits. They’re specially designed to handle minor repairs, ensuring you get the same high-quality results without needing to invest in larger quantities or more extensive equipment.

Small Job Kits and Cartridge Solutions

Popular Water Stop & Leak Sealing Injection Links

Basement Crack Injection Systems

Click Here

Contact Your SealBoss ® Technician

Crack Injection Tools & Accessories

Your Ultimate Source for Crack Injection Tools & Accessories

As a comprehensive supplier of concrete crack repair solutions, we present a wide range of crack injection tools and accessories. Our product line supports both low and high-pressure injection systems, ensuring we cater to diverse project requirements.

From seasoned contractors to first-time fixers, our quality components mark off every item on your essential supplies checklist, propelling you toward triumphant foundation crack repairs.

Elevate your repair game with our Crack Injection Tools & Accessories – because successful foundation restoration starts here.

Injection Lances / Needles

Static Mixers

Applicators

Hose sets

Crack Injection Hand Tools

Injection Packers

Couplers / Fittings

Surface Ports

Pumps

Crack Injection Tools & Accessories

We stand firmly behind our mission to provide you with effective and dependable Crack Injection Tools & Accessories. We acknowledge the varying needs of different projects and have tailored our range to satisfy both low and high-pressure injection requirements. No matter your level of experience, from seasoned professionals to novice enthusiasts, we’re confident that our quality components will meet your needs for successful foundation crack repairs.

Should you require any assistance, need more information or advice on any of our products, our expert technical support team is readily available. We are here to help guide you through your purchasing decision and offer unparalleled after-sales support, ensuring your repair jobs are always accomplished with precision and efficiency. Your successful foundation restoration truly begins with us.

Contact Your SealBoss ® Technician

EZ-FIT Injection Packer

EZ-Fit Injection Packer

The Washer:
Where Ease Meets Excellence in Injection.

Introducing the SealBoss® EZ-Fit Injection Packer:

Elevating Precision in Packer Installation

In our quest to enhance the user experience and precision in packer installation, we’ve innovatively designed the SealBoss® EZ-Fit Injection Packer. One of its standout features is the strategically placed washer at the top of the packer body. This washer serves as an intuitive guide, ensuring swift and accurate packer placement.

Gone are the days of second-guessing during packer installation. The moment the washer touches the substrate, the applicator can be confident that the EZ-Fit Packer is perfectly positioned within the drill hole, primed and ready for tightening.

But that’s not all. We’ve fortified the injection port with heavy-duty steel, ensuring its durability and longevity. Complementing this robust design is a soft-grade rubber sleeve, which provides enhanced friction and grip, ensuring a secure and efficient injection process.

Experience the difference with the SealBoss® EZ-Fit Injection Packer – where precision meets performance.

The SealBoss ® EZ-Fit Packer style has a strong following with some experienced contractors while boosting confidence among contractors new to the crack injection business.

Packer Technology since 1988

SealBoss has been a leader in the injection packer technology since 1988. Mechanical packers and injection ports are the gateway to successful injection. SealBoss supplies injection packers to customers worldwide. We offer mechanical packers varying in all key designs including packer material types and dimensions. We also offer custom designs and production for our customers.

Find More information here

SealBoss Quick Info Crack Injection

SealBoss ® Packer Quick Reference

With offerings spanning the waterproofing, floor repair, and structural repair scopes,
SealBoss ® is your source for proven concrete repair materials.

Contact Your SealBoss ® Technician

How to Seal Leaks | Repair Cracks in Shotcrete

How to Seal Leaks and Repair Cracks in Shotcrete:

Shotcrete is a versatile and durable material widely used in construction for creating complex structures, including decorative elements in zoos and theme parks.

However, like any other material, it is prone to developing cracks and leaks over time. Addressing these issues promptly is crucial to maintain the integrity and appearance of the structures. This article outlines a practical example of how the SealBoss Water Stop System was effectively used to repair a decorative shotcrete structure at the Omaha Zoo.

The Challenge: Leaks and Cracks in Decorative Shotcrete

The Omaha Zoo faced a significant challenge when a decorative shotcrete structure, an integral part of the zoo’s aesthetic appeal, began showing signs of deterioration.

Cracks and leaks had developed, primarily due to an irrigation system installed above the structure. Water seepage through these fissures threatened the durability and appearance of the faux rock face, necessitating an urgent and effective repair solution.

The Solution: SealBoss 1510 Foam and P2002 Polyurethane Pump

To address this issue, a technical representative from SealBoss was called upon. The solution proposed involved the use of the SealBoss Water Stop System, specifically the 1510 Water Stop / Leak Seal Foam and the compact P2002 Injection Pump, along with SealBoss Evolution AL Packers (1/2″, 5/8 BH/Zerk).

The objective was clear: to seal the leaks and repair the cracks effectively without compromising the structure’s aesthetic value. The SealBoss system was chosen for its proven efficiency in such scenarios.

The Process: Hydro Active Foam Injection Technique

The repair process began with a thorough assessment of the structure to identify all visible voids and cracks. The SealBoss team then employed the hydro active foam injection technique, using the P2002 drill injection machine along with 1/2 AL & 5/8 injection packers.

SealBoss 1510 was injected into the cracks until visible penetration was observed on the face of these cracks. This process required multiple injections at various points to ensure that the foam traveled deep into the cracks, forming a dense, closed-cell compression seal upon expansion. One of the remarkable observations during the process was the expanding foam pushing out from the cracks, indicating its excellent travel and coverage within the network of fissures.

The Outcome: A Leak-Free, Restored Structure

Following the injection process, the structure underwent a rigorous inspection to ensure that all leaks were sealed. The SealBoss system proved its efficacy, as the structure passed the inspection with no signs of leakage. The aesthetic integrity of the structure was maintained, with minimal visible impact from the repair process.

Training and Support

SealBoss offers in-person and video training for those interested in learning more about their products and techniques. This training is invaluable for professionals looking to enhance their skills in leak sealing and crack repair in shotcrete structures. Additionally, SealBoss provides access to regional technical representatives who can offer insights into the full range of system solutions and offerings.

Conclusion

The successful repair of the decorative shotcrete structure at the Omaha Zoo is a testament to the effectiveness of the SealBoss Water Stop System. This case study highlights the importance of choosing the right materials and techniques for repairing shotcrete structures. With the right approach, it is possible to extend the life of these structures while maintaining their aesthetic and structural integrity.

For those facing similar challenges, consulting with a SealBoss technical representative can provide tailored solutions to effectively address leaks and cracks in shotcrete.

SealBoss ® P2002 Drill Operated Injection Pump Advantages

Polyurethane Grout Injection Pump
Polyurethane Foam Injection Pump
Easy To Use
Easy To Cean
Easy To Maintain
Modular, Compact &
Sturdy Design
Single Component
Electric Drill Operated
Heavy Duty For Daily Use
Pressure Gauge, Hose Set, Hopper Included
Recommended For Beginners & Injection Pros
> 5000 PSI Injection Pressure Possible

SealBoss Injection Systems

Click Here

Contact Your SealBoss ® Technician

Hairline Crack Injection

Super Fine Crack Injection

What are Hairline Cracks and how do they develop?

Fine cracks in concrete, thinner than a credit card thickness, are considered hairline cracks. here are a number of reasons concrete structures could form hairline cracks.

Common causes of hairline cracks in concrete structures and foundations

Shrinkage
Concrete shrinks in volume as it dries. During this process of contraction, hairline cracks may develop.

Thermal Movement
Concrete expands and contracts during temperature changes. This process can cause hairline cracks to form in the structure.

Settlement
Foundation settlement can cause stress in a structure and lead to cracking. Voids varying in size from hairline cracks to more severe fractures and fissures can be observed.

Hairline Crack Injection Job Walk Comments

– In the image presented, we highlight a detail we have previously discussed with the injection team during technical training. The almost imperceptible hairline crack beautifully demonstrates the resin’s travel, moving from the drilled hole pointy of injection within the crack and emerging on the wall’s surface.

For effectively treating ultra-thin hairline cracks, it is advisable to utilize a low-viscosity chemical injection grout. This ensures optimal material penetration within the structure. Additionally, injection packers are typically positioned in close proximity to one another and nearer to the crack. This arrangement is due to the anticipated higher injection pressures and the increased challenges associated with material dispersion.

Hairline Crack Injection Products Used

The contractor performed the hairline crack injection with the SealBoss Injection System.

Products used:

We also recommend for hairline crack injection:

Learn More

Please don’t hesitate to call us at 714-662-4445 with any questions, or request to be contacted here, we look forward to helping you find a solution. On-site support from knowledgeable and experienced technical reps is available upon request. Check out our Crack Injection Kits.

Contact Your SealBoss ® Technician

Ceiling Crack Injection Shopping Mall

Ceiling Crack Injection

Shopping Mall

SealBoss ® 1510 Water Stop Foam Ceiling Crack Leak Repair

Job Walk Shopping Mall Los Angeles

Before and after pictures. Ceiling leak repair. Hydroactive polyurethane foam grout injection with SealBoss ® 1510 Water Stop Foam and SealBoss ® Packer Evolution 13-100 AL.

SealBoss ® 1-2-3 at 45 Degree Injection Method

Water Stop and Leak Sealants

Click Here

Water Stop

Contact Your SealBoss ® Technician

Water Treatment Plant Repair

SealBoss 1510 Water Stop Foam Injection
Water Treatment Plant Langston, OK

Water Treatment Plant Repair Injection Training on the Jobsite

East Coast Sales Manager Craig Greenfield trains a local general contractor on the SealBoss Leak Sealing & Water Stop polyurethane injection procedure.

Using the SealBoss 1510 Water Stop Foam, P2002 Injection Pump and SealBoss Injection Packers. The newly trained applicator was able stop the active water leaks. A successful repair, a further contractor added to the growing SealBoss team!

Environmentally Safe

SealBoss 1510 Water Stop Foam is approved for contact with drinking water meeting the NSF/ANSI 61 Section 5 requirements. That means they can be used without having an adverse effect on water quality.

Why is the SealBoss System Polyurethane Crack Injection Essential for Leak Seal Applications?

Leaks in concrete structures are often detrimental to property values and safety. SealBoss injection products, such as our Water Stop Foam / HighFoamer formulations, FoamResins and low viscosity injection resins deliver ultimate solutions for hairline cracks, gushing water leaks and many other water stop issues.
How Effective is Concrete Crack Injection for Leak Seal Projects?

Leaks in concrete structures can be permanently repaired with SealBoss concrete crack injection systems. We supply water-activated foams, gels, hydrophobic polyurethane resins, mechanical packers and injection pumps to create watertight seals.

Materials and Tools Used

Related Articles

Learn More