If I use vermiculite or pearlite with my plants would I still be able to say I grew my plants organically?
Fireproof materials ,also called refractory materials, are able to withstand high temperatures and be proof against fire. Zhengzhou Sunrise Refractory Co., Ltd. is a refractory supplier from China, offering various refractory materials.
Fireproofing materials are such construction materials used to withstand heat in case of fire occurred in the building. The following materials usually being fireproofed are doors, walls, windows and ceiling materials. Fireproofing for the materials varies depending on the types and conditions of structure and usually rated in 30 minutes, 45 minutes, 1 hour, 1.50 hours 2 hours fire ratings. Example : The 30 minutes fire rated door can withstand fire without burning up to 30 minutes time.
Various materials are used. Some are vermiculite, plaster, gypsum board, intumescent paints, and even water.