... powder , 325 mesh ,specific gravity 4.2 , use in drilling and rubber and auto brake pads the barite powder , usually ... CaCO3≤ 2%Moisture≤ 1%PolymerizationNo PolymerizationApplicationUse as materials of oil-drilling mud fluid as weighting additives to increase the mud weight ... be use for increasing mud density in many types of drilling fluid systems, etc. ( function(){ var aBigImageSrc = [ 'http://i00. ...