The CellBlockEX logo.

Safely store or ship lithium-ion batteries by land, air, or sea.

CellBlockEX is the environmentally-friendly, mineral-based extinguishing agent used for fire fighting and prevention of problematic fires such as metal fires, lithium-ion battery fires, and combustible liquids. It is composed of non-crystalline glass granulates; these small, lightweight spheres consist of recycled glass with tiny pores on the inside. Since the granulate is 100% mineral based, it is not combustible – and it’s safe for you and the environment.

CellBlockEX is a Robust Class-D Shipping Solution

How does CellBlockEX compare to other aggregates? Download our Aggregates Comparison ยป

CellBlock DOT approved drums for the transportation and storage of batteries.

CellBlockEX HazMat Drums have earned a special permit from the DOT when CellBlockEX is used as a filler.

The CellBlock Transportation Case reduces the risk of fires when transporting lithium-ion batteries.

In tests performed by Stress Engineering Group and Underwriters Laboratories, CellBlockEX halted lithium-ion battery fire propagation in our Transportation and Storage Cases

How Does CellBlockEX Work?

Suffocation Effect

Covering the fire load with CellBlockEX granulate displaces oxygen and separates it from the fuel. The fire is suffocated.

Cooling Effect

Due to its specific thermal capacity, CellBlockEX absorbs heat energy, thereby cooling the fire. The thermal reaction is disrupted.

Isolation Effect

Like glass, CellBlockEX melts at a high temperature. The granulates absorb heat in the form of melting energy, cooling the fire while forming an impervious layer over the fire load. A reaction with oxygen is prevented. Even difficult to control metal fires (i.e., sodium or magnesium) can be extinguished with CellBlockEX.

Gas Tightness

Thanks to the CellBlockEX grain shape, very dense sphere packing is achieved. The supply of oxygen is impeded by the packed bed, and the formation of combustible gases is prevented.

Sorbency of Liquids

The special granulate mixture combined with the porous, and therefore especially large grain surface, effectively binds liquids.

Fire Gas Filtering

Just like liquids, gases and vapors accumulate on the extremely large surface of the CellBlockEX granulate and are bound for disposal.

CellBlockEX is Tested and Proven

CellBlockEX has been extensively tested by CellBlock FCS and by third party laboratories:

It was shown to prevent propagation in Class D lithium-ion fires as well as class A, B and K fire loads.

[bpt_icon name=”file-pdf-o” class=”” unprefixed_class=””] Download Test Results

[bpt_icon name=”file-pdf-o” class=”” unprefixed_class=””] Download SDS

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CellBlock FCS, LLC
234 Northeast Road, Unit 5
Standish, ME 04084

281 Maverick Street
Boston, MA 02128

[email protected]