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- Certified 4-Hour Fire Wall Rating by Southwest Research Institute, per ASTM E-119, compliant with IEEE Std. 979, and the IBC, CBC, and UBC construction codes.
- No flame, hot gas, or water penetration during the required 4-hour fire exposure test, or immediately after, when the fire wall has reached a temperature of 1,960°F and is blasted with a 45 psi water jet.
- The ThermaLimits reinforced refractory formulation withstands multiple fires with no degradation of its thermal or mechanical material properties.
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- Refractory concrete reaches a cold crushing strength greater than 5,000 psi within 24 hours after mixing.
- Refractory concrete does not re-absorb moisture once it cures, hence no spalling under fire or corrosion over the long term.
- Removable precast grooved columns with slide-in panels form a wall’s section. The column’s integrated base-plate is simply bolted to the foundation anchor bolts, thus greatly reducing time and installation costs.
- Multiple column grooves allow the fire walls to be easily configured to in-line, ‘T’, ‘L’, or ‘U’ arrangements, or any in-between angle by adjusting the groove’s orientation during casting.
- A typical 24-foot high column weighs approx. 6,000 lb., and a typical 9-foot by 3-foot panel weighs approx. 600 lb.
- The inorganic refractory concrete is impervious to the sun’s UV radiation and resistant to freeze-thaw weathering.
- An effective fire wall must also have sufficient impact resistance to survive shrapnel impingement from a transformer explosion. Standard ThermaLimits fire wall panels were successfully tested per UL Standard 752, stopping a 44 Magnum projectile with no through penetration.
- ThermaLimits refractories are water-based and totally inorganic with nothing to burn. The relatively lightweight thermal panels and columns are cast from time-tested refractory concrete. Refractories emit no volatile organic compounds or hazardous material when manufactured, during the fire, or when disposed.
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General Characteristics
