... Expanded Vermiculite properties Heat-resistant, corrosion-resistant, well-ventilation, water preservation, poisonless, odorless, low hardness, burning-avoidness, lighter ... -130kgs/m33%maxMedium2-4mm90-120kgs/m33%maxLarge3-6mm 4-8mm90-120kgs/m33%maxPowder150mesh200mesh 325mesh500mesh 600mesh110-250kgs/m31 ... depending on type and application can withstand hot face temperatures of up to 1100ºC.The type of ...