| 3M™ Glass Bubbles HGS Series are engineered hollow glass spheres for use as a density reducing agent for oil and gas drilling fluids and drilling cements. The spherical shape of 3M glass bubbles offers a number of important benefits, including lower viscosity and improved flow. The chemically-stable soda-lime-borosilicate glass composition of 3M glass bubbles makes them virtually insoluble in water or oil. They are also non-compressible. Their low alkalinity gives 3M glass bubbles compatibility with most resins, stable viscosity and long shelf life.Information provided by 3M |
