SealBoss News / Blog

Gen 3 JointMaster – Decades of Expertise
Designed for Precision, Built for Speed

SealBoss® JointMaster Pro2 Pump – The Industry-Leading Solution for Precision Joint Fill Applications

Introduction

The SealBoss® JointMaster® Pro2 Pump represents the latest generation in joint fill technology, offering contractors and concrete professionals a robust, field-proven solution for accurate, efficient, and high-volume joint filling applications. Backed by over 36 years of experience and refined by real-world contractor feedback, this third-generation pump is purpose-built for demanding environments—where precision, speed, and reliability matter most.

From industrial warehouse renovations to tilt-up construction, and from crack and spall repair to high-performance polyurea and polyurethane applications, the JointMaster Pro2 delivers consistent results with less downtime and greater mobility. With features like cordless battery operation, digital controls, and a high-output gear-driven pump, this machine redefines what’s possible on today’s fast-paced job sites.

Key Advantages of the SealBoss® JointMaster® Pro2 Joint Fill Pump

Precision Pumping for Clean, Consistent Joint Filling
The JointMaster Pro2 is engineered for high-precision results, delivering material through a variable-speed motor and gear-driven system. This ensures smooth, even fill across expansion joints, control joints, and cracks—reducing rework and helping contractors maintain a professional finish, every time.
Versatile for a Wide Range of Applications
Designed with flexibility in mind, the JointMaster Pro2 accommodates a broad selection of materials including polyurea, polyurethane, and epoxy. Whether it’s concrete joint filling, spall repair, or horizontal crack injection, this pump supports a wide spectrum of concrete repair needs—from industrial floors to commercial and even residential jobs.
High-Efficiency Gear-Driven Performance
With a material output exceeding 0.5 to 1+ gallons per minute, the Pro2 is optimized for high-volume joint fill applications. This performance allows crews to fill thousands of linear feet per day, making it ideal for time-sensitive projects that demand both quality and speed.
User-Friendly Interface and Digital Control
The system is built for operator convenience, featuring a digital display that provides real-time feedback on flow rates, operation status, and pump performance. This intuitive interface makes it easy to monitor output and fine-tune application settings on the fly—minimizing errors and boosting productivity.
Cordless Battery-Powered Operation (Optional)
Job sites don’t always offer convenient power sources. That’s why the JointMaster Pro2 supports an optional battery-inverter setup, allowing for cordless mobility. Whether working in remote areas, outdoors, or in power-restricted environments, the battery package provides uninterrupted, tangle-free performance.
Rugged and Durable Construction for Job Site Demands
Built to withstand the toughest working conditions, the JointMaster Pro2 features a steel frame, aluminum and stainless-steel components, and corrosion-resistant tanks. Designed for daily use in industrial settings, it’s a machine built for the long haul.
Cost-Effective Solution That Boosts ROI
By reducing material waste, increasing output speed, and minimizing the risk of rework, the JointMaster Pro2 improves your Return on Investment with operational efficiency and overall profitability. Contractors benefit from lower labor costs, faster project completion, and happier clients—all of which contribute to a healthier bottom line.

Primary Applications of the SealBoss® JointMaster® Pro2 Pump

Precision Concrete Joint Filling for Industrial and Commercial Floors
Perfect for warehouse floors, manufacturing plants, tilt-up buildings, and parking structures, the JointMaster Pro2 excels in filling control joints, construction joints, and saw cuts. The system’s accuracy and output rate ensure a seamless, professional application even on large-scale projects.
Horizontal Floor Crack Repair and Concrete Spall Restoration
In addition to joint filling, the Pro2 pump is ideal for surface crack repair and concrete spall restoration. It works well with fast-setting repair resins, allowing crews to restore structural integrity and walkability in minimal time—reducing downtime for operational facilities.
Asphalt and Roadway Maintenance for Pavement Cracks
The pump’s flexibility extends to blacktop and asphalt repair, including cracks and potholes in highways, driveways, and parking lots. Combined with its optional cordless setup, the system is well-suited for outdoor and remote roadway projects where power accessibility is limited.

With a focus on dedication and extensive testing, we’ve created a reliable and low-maintenance product that’s built to last. The JointMaster’s modular design allows for speedy repairs and its versatility makes it tailored to meet the unique needs of your business. Furthermore, with the option to add additional features – including battery powerded operation – the custom-built JointMaster is the ultimate solution to upgrade your business’s repair capabilities.

JointMaster Pro 2 G3i Digital Joint Filler Pump
110V and 220V versions are available

Technical Specifications & Advanced Features

High-Volume Gear Pumping System
Powered by a durable electric motor and gear-driven pump, the JointMaster Pro2 delivers more than 1 gallon of material per minute, making it ideal for rapid deployment in large-scale applications.
Customizable Accessories for Job-Specific Needs
The system includes a suite of nozzles, hoses, and wand configurations that allow contractors to adapt the pump to a variety of job types and material viscosities. This modular setup enhances flexibility and improves workflow.
Cordless Battery Operation (Optional Upgrade)
When paired with the battery and inverter package, the Pro2 can operate entirely off-grid, providing full performance without the limitations of cords or generators—perfect for mobile operations or hard-to-access job sites.
Safety-Focused Electrical System
Featuring low voltage control wiring and a low voltage applicator wand, the system reduces electrical risk and promotes safer operation in both indoor and outdoor environments. This design ensures compliance with job site safety standards and gives operators peace of mind.

Conclusion

A Proven, Professional-Grade Solution for Concrete Joint Filling
The SealBoss® JointMaster® Pro2 Pump stands as a benchmark for excellence in joint fill, crack repair, and concrete restoration. Combining speed, precision, and durability, it empowers contractors to take on more work with less effort—delivering results that exceed expectations.

Whether you’re managing a large warehouse renovation or performing high-volume concrete joint repair, the JointMaster Pro2 offers the performance and reliability that today’s professionals demand.

Get Started Today – Ready to take your joint fill game to the next level?

Explore the full capabilities of the JointMaster Pro2 and find out how SealBoss can support your next project.

📞 +1 714-662-4445
🔧 Visit the Product Page
📄 Need a demo or quote? We’re here to help.

SealBoss JointMaster

Click Here

JOINTMASTER

Contact Your SealBoss ® Technician

Midwest Joint Fill Training | SealBoss 6500 Polyurea & JointMaster Pump

Midwest Joint Fill Training
SealBoss 6500 Polyurea & JointMaster Pump

Another

On the Job Training

Joint Fill & Repair

Heartland Warehouse Renovation

Introduction:

This article explores the real-world training and application of the SealBoss® 6500 QuickFix Polyurea Joint Filler and the JointMaster® Pro2 Pump during a recent aerospace facility renovation project. The focus is on the critical importance of proper industrial floor joint repair in high-performance environments, particularly in sectors with heavy equipment use and stringent facility requirements.

The case study is based in St. Louis, Missouri, where a local contractor—new to joint filling work—was selected to complete repairs on 6,000 linear feet of floor joints. Understanding the complexity and performance standards expected by the aerospace client, the contractor partnered with SealBoss for professional training. A SealBoss Technical Representative provided on-site, hands-on instruction to ensure proper use of both the material and the pump system.

This project showcases the effectiveness of direct technical support and the role of quality equipment in enabling successful outcomes, even for contractors without prior experience in joint filling. It also highlights how tailored renovation work helps prepare industrial floors for the heavy-duty usage expected in aerospace and manufacturing environments.

As the construction of tilt-up concrete buildings and warehouse facilities continues to rise nationwide, many existing structures are not immediately suitable for new tenants and require modification before operations can begin. Floor joint restoration using reliable products like SealBoss 6500 Polyurea and the JointMaster Pro2 Pump can be an essential part of that process—ensuring durability, performance, and long-term facility integrity.

SealBoss Expertise Elevates Industrial Floor Joint Repair at Aerospace Facility

On-Site Training Brings Professional Results in St. Louis, Missouri

In the thriving industrial hub of St. Louis, Missouri, SealBoss was called upon to provide specialized, on-site training in the use of SealBoss professional-grade Floor Repair Systems.

A SealBoss Technical Representative visited a local contracting team to deliver targeted instruction in joint filling techniques using the SealBoss® 6500 QuickFix Polyurea Joint Filler and the JointMaster® Pro2 Dispensing Pump.

This hands-on training session was designed not only to introduce the contractor to SealBoss technologies but also to prepare them for an urgent renovation at a warehouse soon to be occupied by a major aerospace company. The goal: enable a successful, high-performance floor joint fill that would meet the strict operational standards of a high-profile tenant.

Meeting Aerospace Industry Demands with Advanced Joint Filler Technology

The aerospace industry places exceptional demands on facility infrastructure. In this case, the client required a durable floor surface capable of handling continuous heavy forklift traffic and the movement of substantial aerospace components.

To meet these challenges, the project team selected SealBoss 6500 QuickFix Polyurea, a fast-cure, heavy-duty joint filler with A 80 Shore hardness and 200% elongation. This advanced material is engineered for industrial environments where impact, stress, and movement are constant. Its flexibility and toughness ensure long-lasting performance—especially crucial in environments that cannot afford downtime.

Equipping the Team: The JointMaster® Pro2 Joint Fill Pump

The project marked the first time the contractor used the JointMaster® Pro2 Pump, a battery-powered, dual-component pump designed specifically for dispensing fast-setting polyurea joint fillers. Recognizing the importance of proper equipment use, the SealBoss Technical Representative provided detailed instruction on pump operation, material mixing, flow control, and cleaning procedures.

Thanks to its intuitive design, the pump quickly became a natural extension of the crew’s workflow, allowing for precise, efficient filling throughout the day.

Scope of Work: 6,000 Linear Feet in One Day

The scope of the project was significant: fill and finish 6,000 linear feet of floor joints within a single day. While ambitious, this target was achievable through careful planning, expert training, and the efficiency of the SealBoss system.

Day-Before Surface Preparation

Preparation began the day before joint filling, with the contractor removing all failed or deteriorating joint material. Adhesion and delamination issues were resolved, and the joints were cleaned thoroughly. Backer rod was inserted to the proper depth across all areas to ensure optimal material flow and control during the next day’s application.

Streamlined Team Configuration for Maximum Efficiency

To complete the project in the shortest possible time while ensuring seamless execution and maximum efficiency, a three-man crew configuration was implemented:

Pump Operator – Managed flow and refill, maintaining steady output from the JointMaster Pro2 Pump.
Joint Filler Applicator – Guided the dispensing nozzle and ensured joints were filled evenly.
Floater / Finisher – Performed critical joint shaving within 8–15 minutes of fill, maintained supply of materials, and ensured the entire process stayed on track.

This streamlined crew layout proved highly efficient for fast-paced, high-volume joint filling.

From Training to Performance: Results That Speak for Themselves

After a concise yet thorough training that included a product overview, equipment setup, and a 20-minute hands-on session, the contractor’s team quickly demonstrated their ability to handle the task. With a dispensing rate exceeding half a gallon per minute, the crew successfully filled and shaved the entire 6,000 feet of joints in a single day.

This successful outcome underscores the transformative value of SealBoss support—empowering even less-experienced contractors to deliver professional results under demanding conditions.

Conclusion: High-Caliber Products Paired with Expert Support

This project in St. Louis exemplifies the SealBoss commitment to excellence—combining premium products with in-person technical training to deliver top-tier industrial solutions. As the demand for tilt-up warehouse renovations grows across the United States, projects like this one illustrate the value of selecting a partner who goes beyond product sales and invests in contractor success.

With SealBoss 6500 QuickFix Polyurea Joint Filler and the JointMaster Pro2 Pump, facilities can be prepared to meet the rigorous demands of aerospace, logistics, and other heavy-duty industries—quickly, efficiently, and professionally.

Interested in training, product demos, or partnership opportunities? Contact SealBoss today.

“We Provide Field Service When You Need It!

We have been offering experienced and responsive technical support since 1988. While providing on-site support and training, we create a positive learning environment focusing on building applicator confidence allowing for successful repairs to be continued after the training. From training new companies and their employees, SealBoss has continued to provide support to our clients for over 36 years.

On-site training consists of an overview of products, the pump and it’s features. This is followed by hands on training with actual dispensing of material on the job site until the applicator has gotten confident with the application techniques and nuances of the material used. Finally we focus on the correct cleaning procedure of the equipment.

We don’t leave a job site until I’m confident that everyone is fully comfortable with the systems and capable of teaching the next person in line.

With a knowledgeable technical support team, we are here to help with any questions you may have.”

SealBoss ® Technical Support and Sales Team

SealBoss Floor Joint Filler

Click Here

Contact Your SealBoss ® Technician

Floor Joint Filler Pumps

SB JointMaster

Crafted from 30+ Years of Experience and Trusted Customer Insights

Are You in the Market for a New Floor Joint Repair Pump?

Floor joint repair pumps go by many names; Floor Joint Pump, Polyurea Joint Fill Pump, Floor Epoxy Pump, Polyurethane Floor Joint Filling Pump, etc.

Even though companies market these machines with similar vernacular, it is important to know these machines are not all the same. It is important to know exactly what material your pump is designed for in order to get the best results and not damage your machine.

Before you purchase a machine for your intended application, it always important to factor in the different attributes of your pump, before you make your final decision.

Key Factors to Consider Before Your Purchase

Function: Can it reliably pump the materials you need?

Always refer to data sheets and SDS.
Consult a technician for precise advice.

Design: Appearance matters.

A professional, sleek design boosts confidence.
Ensure there aren’t any nuts, bolts, or awkward seams protruding.

Quality: Daily use can take a toll.

Opt for machines with robust frames and superior workmanship.
High-pressure gear pumps are a must to prevent costly leaks.
Only settle for top-quality, CE-rated motors.

Versatility: Does it cater to your unique needs?

Look for options like extended battery operation, heater bands for cold environments, and additional purge valves.

Safety: Never compromise.

Ensure all moving parts are fully enclosed.
Avoid machines where the full voltage runs through the applicator wand.

Price: Seek value, not just cost.

A system’s longevity and ease of maintenance are paramount.

Introducing: The Sealboss JointMaster Pro 2

Consider the industry gold-standard, the JointMaster stands out as a third-generation professional machine.

Built on valuable customer feedback and real-world experience.
Boasts an innovative low-voltage control line, ensuring no high voltage at the applicator wand – a unique Pro2 standard.
Trusted and sold worldwide.
The SealBoss JointMaster Pro 2

Partner with SealBoss

Let us elevate your business with superior products and expertise. Maximize your investments with our high-quality range and exceptional know-how.

Questions? Need a Quote?
Connect with us at 714-662-4445. We’re here to help.

Links to JointMaster Floor Repair and Joint Filling Applications

SealBoss JointMaster

Click Here

JointMaster

Contact Your SealBoss ® Technician

Upgrading to Bulk Joint Filling Machine

Transitioning from Polyurea Cartridges to the
JointMaster Pro2 Pump

The Evolution of Joint Fill Application

Introduction:

In today’s competitive construction and floor repair industry, smart investments in technology can significantly impact a contractor’s business growth. This article highlights the strategic advantages of integrating the SealBoss JointMaster Pro2 Joint Fill Pump into your operations.

Beyond a mere equipment upgrade, the JointMaster Pro2 offers enhanced profitability and operational efficiency, marking a departure from traditional cartridge systems.

We will explore how this investment not only recoups costs quickly but also propels business forward by reducing labor costs and project timeframes. Additionally, the piece underscores SealBoss’s commitment to customer success through extensive support and training, ensuring users fully leverage the technology to achieve superior results in their projects.

Elevating Performance with the JointMaster Joint Filling System by SealBoss

A SealBoss’s regional technical representative and an esteemed SealBoss distributor recently convened on-site with a local contractor at a pioneering tilt-up warehousing facility in the heart of the St. Louis area. The main objective of the meeting was to provide insightful training and reliable support, streamlining the contractor’s transition to a more efficient joint-filling method.

Upgrading to JointMaster Joint Filling Machine

This particular day marked a significant milestone for the contractor, as they shifted gears from utilizing SealBoss’s 6500 Polyurea Joint Fill Cartridges to adopting the more advanced, professional SealBoss JointMaster Joint Fill Pump. This transition, aimed at SealBoss 6500 polyurea bulk joint filler applications, promises substantial upgrades in time-efficiency and cost-effectiveness.

SB JointMaster Efficiency – Time-Saving, Cost Effective, Easy Operation

After an informative, 30-minute comprehensive overview touching on the ins and outs of the pump use, along with daily upkeep and maintenance, the contractor was well-equipped to smoothly transition to this innovative system. Immediately noticeable was the leap in labor efficiency and the significant reduction in the time taken to complete tasks.

What had once been a labor-intensive process requiring five workers on their knees applying the product from cartridges was transformed into a streamlined operation handled by a three-man team. Two personnel managed the efficient running of the JointMaster Pump, while the third team member focused on joint preparation. This operator also circled back to refine and shave any crowning of the joints, ensuring a professional and high-quality finish.

The SealBoss JointMaster Joint Fill Pump not only simplifies the workflow but also drastically improves the quality and speed of the process, ultimately enhancing the overall productivity and satisfaction for contractors everywhere.

Assessing the Investment Value of the JointMaster Pro2 Joint Fill Pump

While preparing cost estimations for a substantial project, the contractor swiftly discerned that the initial outlay for a JointMaster Pump could be rapidly offset. Moreover, it promised to yield a robust profit, significantly higher than what could have been generated through conventional cartridge methods.

Significant Savings in Labor, Time, and Material Costs

With the new JointMaster, the contractor can now reach an impressive daily output of 4,000 – 5,000 linear feet of filled joints. Powered by a large deep-cycle battery, the highly efficient, electronically controlled JointMaster machine can operate for a full eight hours when fully charged. Alternatively, if battery operation isn’t preferred, the pump can function efficiently from a standard 110V outlet. 220V pump versions are also available.

Elevating Joint Fill Quality and Ensuring Applicator Satisfaction

The JointMaster machine, equipped with high-precision pump units, delivers product components uniformly. This meticulous dispensation ensures a reliable, even distribution of material within the concrete joints, significantly enhancing the quality of the joint fill.

The machine is also designed with sizable stainless steel hoppers, a feature that enables refilling on the move. This unique capability eliminates any interruption in the workflow, thereby ensuring the application process is a seamless, uninterrupted experience.

In terms of control, the operator is firmly in the driver’s seat, able to regulate the product flow directly via the potentiometer on the applicator. This level of control, paired with the machine’s straightforward operation and rapid progress on job sites, makes for an efficient process that consistently yields satisfying results. This, in turn, heightens the satisfaction of the applicator, affirming the JointMaster machine’s reputation as an operator-friendly, high-quality solution.

Wanted to get back to you on the machine.
Works like a charm.Thanks Again, Jay Kangas

‘She is absolutely beautiful! Very well done machine.
I have pumped several thousand feet through already.’ Stephen Schmid

SealBoss JointMaster Technician

Driving Business Growth

In the midst of conducting cost-benefit analyses for larger scale projects, a contractor quickly came to a profound realization. The initial capital investment required for a JointMaster Pro2 Joint Fill Pump could be quickly recouped. Moreover, it promised to deliver a considerable profit margin, far surpassing what would have been achievable using traditional cartridge systems.

The JointMaster Pro2 Joint Fill Pump, an innovation in the world of polyurea joint filling, isn’t just another piece of machinery—it’s a tangible investment that could substantially enhance your profitability and operational efficiency. Its advanced technology and robust construction, combined with user-friendly operation, significantly reduce labor costs and time spent on each project, offering an impressive return on investment.

This is an investment that speaks volumes about a contractor’s commitment to excellence, modernization, and productivity, reinforcing their reputation in the competitive floor repair industry

An investment in a JointMaster Pro2 Joint Fill Pump isn’t just about spending money on a new tool—it’s about investing in a proven system that facilitates cost-effective, efficient operations and, ultimately, drives business growth.

My journey began right here at SealBoss, where I was directly involved in building and repairing JointMasters

This hands-on experience has equipped me with deep insights and an unparallelled understanding of the mechanics and operation of our products. This allows me to provide in-depth, on-the-spot training confidently, and offer proficient assistance in maintaining your machines.

Covering all SealBoss System Solutions

As an integral part of the SealBoss team, my expertise extends far beyond just offering state-of-the-art pump and material systems for floor joints.

Our commitment extends to providing on-site support and training from the center of the U.S. Whether it’s a new company eager to learn or new employees in need of training, our mission is to ensure everyone can leverage the full potential of our systems.

SealBoss has upheld a strong tradition of exceptional user support for over three decades

We are proud to carry forward this tradition in the years to come. Our highly knowledgeable technical support team is always ready and eager to help. No matter what questions or concerns you may have, rest assured that we are here to guide you through every step of the way.

SealBoss Floor Repair

Click Here

JointMaster

Texas Floor Repair | Joint Fill

Texas Joint Fill Floor Repair

SealBoss JointMaster Pump Rushed to El Paso

Another High School Floor Repaired & Concrete Joints Filled in Texas

A SealBoss Technical Rep drove down to El Paso, TX in timely support of local contractor who upgraded from an old outdated pump with polyethylene tanks, that was difficult to use and clean, to the stainless steel tank equipped new Jointmaster Pro 2 G3i polymer joint filler pump.

How to Operate and Clean a Joint Filler Pump

“On-site training consists of an overview of the machine and it’s features. This is followed by hands on training with actual dispensing of material into the joints until the applicator has gotten comfortable with the application techniques and nuances of the material used. Finally we focus on the correct cleaning procedure of the equipment.

We won’t leave a jobsite till I know everyone is comfortable with the systems and can reteach the next person in line.

Instead of breaking out the tools and hoping you can find parts for your old bulk dispensing pump, maybe it is time to upgrade to the SealBoss Jointmaster 2 and schedule your on-site training to get you comfortable with your new machine.

With a knowledgeable technical support team, we are here to help with any questions you may have.”

Technical Sales Team

JointMaster Pro 2 Machine Advantages

Over 8 hour working time with 12V Marine Deep Cycle Battery
Lightweight with a Powder Coated Frame & Stainless Steel Hoppers
Works with any 1:1 Self Leveling Jointfill | Polyurea | Epoxy
Optional accessories for conditioning material
4000 – 6000 linear feet average of material dispensed per battery cycle

In Person and Video training is available upon request, contact SealBoss today to speak to your regional technical representative on our SealBoss full system solutions and offerings.