3M™ Glass Bubbles HGS10000 are hollow microspheres made of soda-lime borosilicate glass with a true density of 0.60 g/cm³ and an isostatic crush strength of 6,000 psi / 420 bar.
HGS10000 Glass Bubbles are designed for use in lightweight well cementing for the oil and gas industry and well suited for use in deep wells.