Reinforces material thermal resistance.
Reliable fireproof mineral filler.
Firecarb is a free-flowing mineral designed to enhance fire resistance in industrial, commercial, and residential settings. Its unique properties make it an essential material for passive fire protection systems, offering thermal barriers and swelling capabilities.
FireCarb actively prevents the formation of toxic gases that can fuel fires, ensuring safer environments for occupants. With its ability to withstand typical room fire temperatures of up to 1,000°C, FireCarb extends the integrity of doors, pipe collars, and other structural elements. Whether used for sealed ceilings or enhancing insulation in critical areas, FireCarb is a reliable, long-lasting fireproof material. Its graphite-based lubricant properties further enhance its versatility, offering seamless integration into various fire safety applications.
Please find our FireCarb product range including the typical properties per grade below:
| Grades | Expansion ml [°C] | Particle Size |
| TEG-500 | 300 | 80% > 300 µm |
| TEG-370 | 275 | 80% > 300 µm |
| TEG-345 | 250 | 80% > 300 µm |
| TEG-315 | 220 | 80% > 180 µm |
| TEG-160 | 85 | 95% < 250 µm |
Customised products are available upon request – these include delayed expansion (DE), high initial expansion (A), and modified pH (H) grades.
Our FireCarb product range is available in 25kg paper sacks or 1000kg bulk bags. Due to the product’s conditions, no bulk solution is available.
FireCarb is based on a high quality Chinese crystalline flake graphite; its structure is in the form of layered sheets of carbon atoms. In a process known as intercalation, an acid solution is placed between the carbon layers. Following manufacture, the material is thoroughly washed and dried, trapping the solutions within the platelets. The result is a dry, pourable, clean material with minimal surface acidity.
Expandable graphite belongs to a group of products called ‘intumescents’, the main property of which is the ability to expand when heated. On exposure to heat, the retained solutions within FireCarb produce a gas that expands and forces open the graphite platelets.
The tremendous expansion that expandable graphite offers (up to 350 x volume at 1000°C) makes it more effective than conventional intumescents. This expansion has the added benefit of creating high pressure, especially when mechanically restricted. At the same time, an insulating carbonaceous char is formed, which protects the substructure from the heat source.
Typically expansion starts at 170°C, and standard FireCarb grades demonstrate a good onset of expansion at relatively low temperature and a high total volume of expansion.
FireCarb is a carbon-based, fire-resistant material used in high-temperature applications. Some key applications include:
Steel manufacturing
Foundries
Fireproofing insulation
Kiln linings
Safety equipment
| Expansion onset temperature (°C) | 170 |
| Carbon content (wt.%) | 90 min. |
| pH value | 4 – 7 |
| Volatiles (%) | < 12 |
| Loose bulk density (kg/l) | 0.45 – 0.50 |
LKAB Minerals use high-quality Chinese expandable graphite for its FireCarb products.
A non-toxic, non-hazardous stable mineral.
Our team is here to provide expert advice and product information tailored to your needs. Contact us today to learn how FireCarb can improve fire safety in your applications.
You can also find us on social media channels such as Facebook, LinkedIn and YouTube. Together, let’s build a better future with high-quality minerals.
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