... Expanded gold vermiculite size Expandedgold vermiculite0.3-0.65mm,0.65-1mm,1-2mm 2-4mm,1-3mm,0.3-1mm,3-6mm,4-8mm200mesh ... , low moisture content and ease of placement.Refractory ProductsVermiculite for refractory and high temperature insulation is normally bonded with alumina ... up to 1100ºC.The type of refractory products made using vermiculite are:-pre-fired clay bonded insulation firebricks;castable ...