Many construction professionals still have misunderstandings about the fire performance of wall panels containing EPS core, worrying that the material may release toxic smoke or lose structural strength under high temperature. The latest authoritative third-party test data of EPS Cement Sandwich Wall Panel has completely eliminated these concerns, proving that it can reach Class A non-combustible level and maintain excellent structural stability even after hours of high temperature burning.
In the standard 3-hour furnace fire test conducted by an independent national building material testing center, a 100mm thick EPS Cement Sandwich Wall Panel was placed in a furnace with the temperature rising steadily from normal temperature to 1000 degrees Celsius. After 180 minutes of continuous burning, the panel did not produce any open flame, and the temperature on the unexposed side of the wall only rose to 127 degrees Celsius, far below the 180 degrees Celsius safety limit required by international fire codes. No molten drips or large amount of toxic smoke were generated during the whole test process.
Another key test focused on the structural integrity of the panel after fire exposure. After the 3-hour high temperature test, the test team took the panel out of the furnace and carried out impact and load bearing tests. The panel still maintained more than 85% of its original bending strength, and no large cracks or structural collapse appeared. This performance is far better than many ordinary fireproof partition materials that will turn into powder and lose all supporting strength after one hour of fire.
For high-rise buildings, shopping malls, schools and hospitals that have the strictest fire safety requirements, EPS Cement Sandwich Wall Panel has obtained all required fire certification documents in most regions. It can be directly used as external fire compartment walls, internal escape corridor partition walls and stairwell enclosure walls without any additional fireproof coating treatment. This not only simplifies the fire protection design of the building, but also greatly improves the overall passive fire safety level of the whole structure.
