Close-up of a transparent liquid splash representing AF-31, a water-based fire inhibitor as clear as water

AF-31: One Formula. Many Powerful Applications.

AF-31 is a certified, non-toxic fire inhibitor effective against wildfires, lithium-ion fires, structural threats, and more.

Explore Applications

AF-31: One Formula. Many Powerful Applications.

AF-31 is a certified, non-toxic fire inhibitor effective against wildfires, lithium-ion fires, structural threats, and more.

Explore Applications

AF-31: One Formula. Many Powerful Applications.

AF-31 is a certified, non-toxic fire inhibitor effective against wildfires, lithium-ion fires, structural threats, and more.

Explore Applications

What Is AF-31?

AF-31 is a next-generation fire protection solution designed to meet the evolving demands of a world shifting toward electric mobility, sustainable infrastructure, and wildfire defense. Unlike traditional suppression systems that rely on toxic chemicals or leave behind damaging residues, AF-31 is a clean, water-based agent derived from food-safe components. It works by penetrating surfaces, disrupting combustion chemistry, and forming a barrier that prevents oxygen from fueling the fire. This makes it uniquely effective not only in extinguishing flames but in preventing reignition, a critical feature in lithium-ion battery scenarios. Backed by third-party testing, certified for environmental safety, and trusted in billions of dollars’ worth of development projects, AF-31 represents a technological and ecological leap forward in fire suppression and prevention.

Eco-Safe Chemistry

AF-31 contains no PFAS or “forever chemicals” and is certified UL Greenguard Gold, ensuring it’s safe for humans, pets, and the environment.

Non-Corrosive, Water-Based Formula

Safe to use around electronics, equipment, and construction materials. Leaves no damaging residue behind after deployment.

Reignition Prevention

Unlike foam or blankets that only suppress the flame, AF-31 forms a persistent barrier that stops fires from reigniting, even after thermal runaway.

Flexible Deployment

Can be applied by certified spray teams, integrated into pre-treatment protocols, or used in emergencies as a direct suppressant.

Proven Track Record

Deployed across over $15 billion in development projects without a complete structural fire loss. Used by major builders, fire authorities, and municipalities.

Performance & Safety Assurance

AF-31 has been tested under extreme thermal conditions, maintaining suppression efficacy at temperatures exceeding 2500°C. Its chemical stability, non-toxicity, and water-based formulation make it safe for use in sensitive environments such as residential buildings, EVs, industrial sites, and public infrastructure. Unlike conventional foams or powders, AF-31 penetrates materials, prevents reignition, and leaves no harmful residue. Ensuring continued protection long after the fire is extinguished.

UL GreenGuard Gold

Low chemical emissions certification

ASTM E84 / ASTM E2768

Class A fire and smoke performance

QAI Laboratories

Independent third-party fire testing

Proven Fire Applications

AF-31 has been deployed across a diverse range of fire threats. Without needing separate product lines or modified formulas. Its versatility allows it to outperform traditional solutions in multiple environments:

An electric vehicle parked on a city street with a blue charging cable plugged into its rear charging port.

Lithium-Ion Batteries

Stops thermal runaway events at the source and prevents reignition. Used in electric vehicles, energy storage systems, scooters, telecom, and battery manufacturing.

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Aerial view of a small green forest island sheltering a few homes, ringed by a red protective boundary, while the surrounding hillsides remain burnt and smoldering.

Wildfire Defense Strategy

Our fire inhibitor is professionally applied as a pre-treatment to homes, critical infrastructure, public buildings, and wildfire-prone zones, creating a long-lasting barrier against ignition. In addition to protecting properties, we strategically safeguard evacuation routes and community corridors to ensure safe passage during fire events. This proactive approach not only reduces wildfire impact but also mitigates insurance exposure and enhances public safety during peak fire seasons.

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Aerial view of a multi-family residential building under construction, with exposed wood framing across multiple stories during its most fire-vulnerable phase.

Wood Frame Construction

Used during construction to treat Type III and Type V buildings. Mobile spray crews apply the product without disrupting workflows up to 30,000 sqft/day.

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Wood Frame Construction

Used during construction to treat Type III and Type V buildings. Mobile spray crews apply the product without disrupting workflows up to 30,000 sqft/day.

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Why It Works

AF-31 is designed to do more than suppress visible flames. It helps interfere with the chemical process that allows fires to ignite, grow, and spread. From wood-frame construction to lithium-ion battery risks, AF-31 provides a versatile fire inhibition solution without requiring added boosters, extenders, or major formulation changes.

Disrupts Thermal Runaway

In lithium-ion battery fire events, heat can build rapidly and create a self-sustaining reaction. AF-31 helps interrupt that heat cycle, reducing the conditions that allow thermal runaway to continue spreading.

Treats Combustible Materials at the Source

AF-31 is designed to bond with and protect combustible materials before ignition occurs. By reducing ignition potential and limiting heat transfer, it helps make treated materials less likely to catch fire or support flame spread.

Versatile Across Surfaces and Environments

AF-31 can be used across a wide range of materials and settings, including wood, insulation, metal, battery systems, composites, vegetation, and wildland areas. Its clean, non-corrosive formula makes it practical for both built environments and natural fire-risk zones.

Long-Lasting Fire Resistance

Once applied, AF-31 is designed to provide durable protection through heat exposure, weather conditions, and time. It gives projects, properties, and high-risk areas an added layer of fire defense where reliable protection matters most.

Frequently Asked Questions About AF-31

Ready to Protect What Matters?

AF-31 is trusted by fire authorities, developers, and sustainability leaders across the U.S.
Whether you need protection for a single property or a multi-site deployment, we’ll help you apply AF-31 where it counts most.

Traditional brick and stone house surrounded by trees and reflected in a still pond, illustrating residential properties protected by AF-31