... , good frothing good preserving, good binding and low heat-conducting rate.Oxygen index over 30(testing after 7-14 days flowing) Sandwich ... .2%Water content≤1.0%≤1.8%Sieving rate of granule≥90%≥90%Limit oxygen index/≥30 FLAME RETARDANT F grades - for ... materials. With high strength, fast forming, high foaming and oxygen index. Oxygen index is above 30.F-MS(F-103)1.2 ...