Ultra Fine Grain Extover Mineral Fire Extinguishing Agent

Fires need fuel, oxygen, and heat to burn. Extover tackles all three by combining displacement, cooling, and containment in a single innovative solution.

The Ultra Fine Grain Extover is primarily used in handheld, portable fire extinguishers where a smaller, finer grain is necessary for an even, smooth application. The finer particles can more effectively penetrate into tight spaces to cover and smother fires. The smaller, more compact grain size allows for rapid and even coverage of a fire, especially within confined areas, providing a faster smothering effect.

When applied, Extover granules cover the fire load, displacing oxygen and cutting off the reaction with fuel. Like glass, the material melts at high temperatures, absorbing large amounts of heat and creating an impermeable barrier over the burning source. This not only cools the fire but also prevents re-ignition. Thanks to its porous structure, Extover also binds liquids, gases, and vapors, making disposal safer and easier.

Which grain size is best for my purposes?
If you need an all-around fire-suppression media that’s lightweight, versatile, and effective for most applications, choose Normal Grain Extover (0.25–2.0 mm). If you’re specifically targeting lithium battery fires or an especially reactive DDR battery, the Ultra-Fine grain (0.04–0.125 mm and 0.25–0.5 mm) provides superior coverage and faster smothering by filling air gaps more completely.

Key Advantages

• Multifunctional: extinguishing, sorption, and filtration capable

• No extinguishing water damage

• Compatible with other extinguishing agents

• 100% mineral, made from recycled glass

• Environmentally and health friendly

• Easy handling in bulk material form

• Recyclable if uncontaminated

• Certified for Class D metal fires

Applications

• Fire departments and emergency services

• Industrial, transport, and logistics sectors

• Workshops, home, and hobby use

• Battery fires, including hard-to-reach areas

• Preventive fire protection strategies

Extover is a sustainable, reliable, and highly effective fire extinguishing agent that offers unmatched safety in handling Class D and lithium battery fires.

Please note: We do not accept returns or issue refunds once the order is placed.
All sales are final unless the product is defective or damaged upon arrival.