Fire rating attribute of Aerolite Lightweight Calcium Silicate Ceiling Tiles

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Fire rating Attribute of Aerolite Lightweight calcium Silicate tile:- Aerolite's LightWeight Calcium Silicate Tile was kept on the stove with high flame for 2.5 Hrs. Over the tile was kept bowl of water with small pieces of Potatoes. Even after 2.5 Hrs of continues fire there was no sign of smoke seen nor tile got damaged. After 2.5 hrs , the potatoes got cooked but the water in the vessel was not evaporated.