... .3-1mm,10-20mesh,20-40mesh Origin:Tianjin,China ,Raw and unexpanded 2.Asbestos free 3.Silze:0.3-1mm,10-30mesh ... , odorless, low hardness, burning-avoidness, etc2.Silver vermiculite grades (size) Unexpanded silver Vermiculite grade(size) Vermiculite gradeVermiculite sizeExpansion ratioMicron 0.3 ... Lightweight ConcretesBrake pads & brake shoes Fixation of hazardous material Paints unexpanded vermiculite