Features: Mortar for fire retardant bricks. Heat resistant temperature: 222°F (1,100°C). Heat resistant Color: Gray Ingredients: Portland cement, sand, other Curing Time: Approx. 24 - 48 hours Installation area: Approximately 24 fireproof bricks Color gray Material Portland cement, others Item Form powder Brand Name 家庭化学 Item Shape Square Unit Count 140.8 Ounce Item Weight 8.95 Pounds Part Number CMLF-1630457 Grade Rating Commercial Manufacturer 家庭化学 Item Type Name Mortar for stacking fireproof bricks Number of Items 1 Included Components No