Tenmat FF107 Explained.

FF107 Intumescents: glowing embers, grey layered panels, black background.

Discover how Tenmat’s FF107 advanced intumescent material is used in ember-resistant vents, fire collars, pipe and duct fire wraps to bring the presence of passive fire protection into a wide range of industries.

In today’s world of construction, intumescents are no longer unfamiliar material in the practice of passive fire protection. Known for their versatility and adaptability, intumescent materials have become one of the key components in the development of advanced passive fire protection solutions.

Developed to meet various expansion ratios + char output, Tenmat’s Advanced Intumescent Materials and Solutions are built to handle diverse and complex applications with ease. From mass timber construction to ember-resistant vents, our advanced intumescent materials have been utilized in passive fire protection solutions to meet the rigorous demands of a broad range of applications.

Among our portfolio, Tenmat’s FF107 material is considered one of the most versatile intumescent materials we offer. Let’s take a closer look at how Tenmat’s FF107 is redefining the standards of fire protection, from its ability to protect a building from both external and internal fire outbreaks.

Why Should You Develop with the FF107 Material?

TENMAT FIREFLY 107 is a high-performance intumescent material engineered for rapid activation and powerful expansion under heat exposure. Its unique formulation delivers a fast reaction time, generating a high level of pressure and volume to form a strong barrier against heat and flame spread.

Four large stone slabs and six narrow strips arranged together on a white background.

What sets FF107 apart from other traditional firestopping methods is its ability to produce a dense, solid char with excellent structural integrity – ensuring consistent protection and durability in demanding life safety conditions.

In addition to its high expansion and pressure generation characteristics, the FF107 has been tested according to ASTM E84 (UL 723) to measure its surface burning characteristics and achieved a Flame Spread Index of 0 and Smoke Developed Value of 0.

Tenmat FF107 is tested according to the current UL requirements and is a Recognized Component under UL Category OEXX2 for Intumescent Materials – Component. This combination of fast response, high expansion, and reliable char formation makes FireFly FF107 a trusted fire-rated material to use in the creation of fire-resistance rated applications.

How does Tenmat apply its FF107 material in mass timber construction?

Close-up of a wooden joint with a gray concrete or stone block set into the wood.

As the International Building Council (IBC) adopts more sustainable construction practices, architects and engineers have been challenged to integrate these standards into their designs. In response to this shift, innovative building methods have gained traction – one of the most prominent being mass timber construction.

 

Mass timber construction is built using a category of engineered wood products typically made of large, solid wood panels, columns or beams often manufactured off-site for load-bearing wall, floor, and roof construction.

It offers sustainability, design flexibility, efficiency, structural performance, and a myriad of other advantages, which position it as a prime candidate for sustainable building practices.

For joint and gap sealing applications in cross-laminated timber (CLT), and glulam, Tenmat has developed a state-of-the-art intumescent material, the FF107.

Tenmat’s FIREFLY 107 is an exceptionally powerful intumescent which combines fast reaction with high expansion and pressure generation – producing a solid char of good integrity. With its composition, the FF107 is applicable in construction joints and gaps.

When specified into construction joints and gaps, the FF107 slows the acceleration of flame and heat spread during an outbreak – ensuring these gaps do not compromise the structure’s integrity.

Learn More about Tenmat’s FF107 in Mass Timber Construction Here.

 

How does FF107 play a role in Ember-Resistant Vents?

Two metal air vent covers, one standing and one leaning, on a white background.

In high-risk wildfire zones (WUI zones), California building code officials now require new construction buildings to incorporate ember-resistant vents into their residential designs. Why? To protect residential homes from self-igniting during a wildfire outbreak.

When homeowners integrate an air ventilation system into their homes, each one of the vents act as prime entry point for hot embers and flames. To protect these entry points without compromising the air flow, homeowners install ember-resistant vents, such as BrandGuard Vents, into their residences to keep out these unwanted guests.

Now, here is where Tenmat FF107 plays a major role. Unlike other ember-resistant vent technology, BrandGuard incorporates Tenmat’s FF107 strips into its vent’s technology. When temperatures rise to dangerous levels in a wildfire, these strips expand rapidly to seal vent openings. This reaction effectively blocks embers and prevents flames from entering one’s household.

With the FF107’s fast reaction and highly expansive properties, BrandGuard’s Ember-Resistant Vents can react when it matters most.

Explore BrandGuard Vents Ember- and Flame-Resistant Vents.
Learn more about California’s Chapter 7A.  

Final Notes

With its rapid expansion, high-pressure generation, and solid char formation, Tenmat’s FF107 material delivers reliable performance across a wide range of applications – from sealing off gaps in mass timber construction to safeguarding homes in WUI zones through ember-resistant technology.

As building codes and fire safety regulations evolve, the demand for advanced fire-resistant materials continues to grow. Tenmat leads the way with innovative products like FF107, helping builders, architects, and homeowners enhance fire resilience and meet modern safety standards.

Charging our Communities with Lithium-Ion Batteries and Intumescents.

Battery Storage Facilities labeled Intumescents in Battery Applications with a battery system image.

Discover how lithium-ion batteries, located in electric vehicles and energy storage centers, are using intumescents to protect their communities from fire outbreaks.

Electric Vehicles. Smartphones. Laptops. Data Centers. Lithium-ion batteries have been absorbed into a wide range of applications in today’s society. This widespread adoption has been fueled by this battery’s combination of performance, efficiency, and adaptability that very few other energy sources can meet.

With its ability to store a large volume of energy in a relatively small and lightweight package, lithium-ion batteries have become attractive to a variety of applications. Applications, such as electric vehicles and smartphones, require an energy source that can fit into a small and lightweight package. This demand can be met with a lithium-ion battery.

Another key advantage of using a lithium battery is its low self-discharge rate, which allows them to retain power even when not in use. With this capability, it provides useful applications where reliability is crucial, such as emergency equipment or backup power systems. Adding to their appeal, lithium-ion batteries have the ability to charge quickly – an increasingly important feature in a world where time is a premium.

As the demand for portable power and clean energy solutions continue to grow, lithium-ion batteries will be one of the No.1 sources of energy in our future communities.

From Cars to Storage Centers: Where You’ll Find Lithium-Ion Batteries

As indicated earlier, the adoption of lithium-ion batteries has been rather significant. Once confined to powering smartphones and other compact electronics, lithium-ion batteries have evolved into critical components for high-demand applications – ranging from advanced transportation systems and data infrastructure to large-scale energy management.

Battery Storage

To keep our communities powered 24/7, modern energy centers have become increasingly dependent on advanced battery storage systems. Known for their high energy density, rapid response times, and compact footprint, lithium-ion batteries have been deemed suitable for meeting today’s demanding power requirements.

With not only being used as a reliable backup source during grid outages, lithium-ion batteries are also able to support additional advanced energy strategies, such as load balancing and peak shaving.

As these centers continue to accommodate the surging demands of cloud computing, artificial intelligence, and real-time processing, their role has evolved beyond emergency backup. Lithium-ion batteries now have been integrated into intelligent management platforms that enable real-time monitoring, predictive maintenance, and grid-interactive capabilities.

Electric Vehicles

Lithium-ion batteries are at the core of nearly every modern electric vehicle, offering a balance of performance, efficiency, and reliability. With recent improvements in cell design, energy density, and battery management systems, EVs have been able to achieve extensive mileage on a single charge with the addition of its fast-charging capabilities and longer lifespans. These improvements have made EVs more practical for everyday use and appeal to an even broader market.

With the global electric vehicle component market being valued at USD 148.32 billion in 2022 and projected to reach 1,001.95 billion by the year 2032.  It should be no question that the demand for lithium-ion batteries will continuously increase. As EV adoption accelerates worldwide, the role of lithium-ion technology will only grow more critical—powering not just vehicles, but the future of sustainable transportation.

The Challenges of Lithium-Ion Batteries

Upon reviewing the recent adoption of lithium-ion batteries, a significant limitation has come to light – one that has notable diminished its overall value and performance.

Thermal runaway, a phenomenon that occurs when a battery or component experiences an uncontrollable increase in temperature, has become the main reason why the use of lithium-ion batteries has been questioned.

Normally triggered by either an internal short circuit or mechanical damage, the phenomenon of thermal runaway begins. When a battery’s cell overheats, it is not only contained to one cell – it spreads rapidly throughout the adjacent cells.

This rapid acceleration produces temperatures three times hotter than conventional gasoline fires, a release of toxic gases, and an ability to reignite after being initially extinguished. This combination creates challenges for both prevention strategies and emergency response protocols.

How to Protect Our Communities from Thermal Runaway

As a result, lithium-ion battery manufacturers have designed several cooling methods, in the case thermal runaway appears in a battery. However, the question is, “What happens if those active fire protection measures fail?”

Just like any application, which demands a level of fire protection, it is always important to incorporate all the pillars of fire protection – especially the act of “containment” or in other words, passive fire protection. With the integration of passive fire protection, the ability to contain a compromised battery cell or battery would be possible.

For instance, enclosing a battery or its cells in fire-resistant materials, a fire will be forced to slow down and be slowed within the desired space. Additionally, this scenario would also apply to any facility where a large number of batteries are being stored.

In the event a fire would break out in one area of a storage center, sealing off any unprotected openings with passive fire protection solutions will enable the fire from spreading to other parts of the facility. These unprotected openings could be caused by wires and cables, located in the walls, floors, or ceilings.

With integrating a strategy, such as passive fire protection, to contain a fire outbreak – it would permit a valuable extension in time – saving lives and property.

Passive Fire Protection for Lithium-Ion Batteries

When identifying what type of passive fire protection technology to use for your battery application, it is crucial to find a technology that will maintain appropriate firestopping measures without compromising the battery’s performance level.

Intumescents are a specialized material that reacts to high temperatures, produced by fire outbreaks, rapidly expanding. Once fully expanded, the intumescent forms a durable, solid char that effectively blocks the spread of fire, heat, and smoke for extended periods.

Building on its expansion capabilities, intumescents are only activated when exposed to heat. Therefore, intumescents can be molded into some of the most irregular and small applications – without compromising the application’s surrounding space. Tenmat has proven this true with our line of Advanced Intumescent Solutions and Materials.

Intumescents for Electric Vehicles

Designed with the latest in intumescent technology, Tenmat’s Advanced Fire Protection Solutions deliver multiple advantages, including the prevention of a fire outbreak by stopping thermal runaway propagation. Due to the intumescents’ highly expansive properties, it actively expands and creates a protective barrier when exposed to heat.

In addition to its firestopping capabilities, the flexible and lightweight composition of intumescent materials allows for thermal management through ventilation, which is critical for the prevention of overheating and the maintenance of long-term health of battery.

To further extend the safety benefits of using Tenmat’s Advanced Passive Fire Protection Solutions, these solutions boast electrical insulation properties as well.

Intumescents for Battery Storage Centers

In large-scale battery storage centers, where the batteries are located within several rooms, it is critical to identify and address any unprotected openings that could accelerate the spread of a fire. These pain points often arise from the extensive network of cables and conduits that pass-through walls, ceilings, and floors, creating prime pathways for fires.

To mitigate this risk, Tenmat’s range of through-penetration intumescents offers firestopping solutions and materials that can properly seal these openings – regardless of their shape, size, or complexity.  These firestop products are engineered to expand rapidly when exposed to high temperatures, effectively sealing gaps and helping to contain fire within its point of origin.

To review which Tenmat Firestopping Intumescents are best suited for your facility’s layout and cable management needs, please visit our Date Center landing page for detailed product information and expert support.

Keeping Our Environment and Community Safe

As the adoption of lithium-ion batteries continues to accelerate across a multitude of industries, the push to integrate proper life safety measures will remain of high importance. Whether in electric vehicles or large-scale energy storage centers, lithium-ion batteries need to be paired with proper levels of passive fire protection to protect the lives and properties within our communities.

With our decades of knowledge and experience in the field of passive fire protection, we have formulated a range of advanced intumescent materials and solutions – specifically designed to combat against the arising issue of thermal runaway in EVs and stationary energy storage systems. By integrating cutting-edge intumescent technology and optimal designs for various applications, our fire-rated solutions provide a fool-proof level of protection, controlling the acceleration of a fire while minimizing potential damage.

Whether in automotive applications or large-scale energy storage banks, Tenmat’s Advanced Solutions and Materials are engineered to withstand the extreme conditions of flames, heat, and smoke – the optimal solution to protect lives and property.

If you have any additional questions regarding passive fire protection for lithium-ion batteries, please contact us directly here. Our team of experts are ready to help you find the right solution for your application.

Sources

Fact.MR. (2022). Electric vehicle components market report. https://www.factmr.com/report/3893/electric-vehicle-components-market

Fire Statistics. (2025, May 1). Lithium-ion battery fires: Alarming statistics and trends. https://firestatistics.org/resources/lithium-ion-battery-fire-statistics

IDTechEx. (2022). Electric Vehicles: Land, Sea & Air 2022–2042https://www.idtechex.com/en/research-report/electric-vehicles-land-sea-and-air-2022-2042/867