3M™ Glass Bubbles S28HS have a density of 0.28 g/cm³ and an isostatic crush strength of 3000 psi / 206 bar.
3M™ Glass Bubbles S28HS are high strength additives for polymers made from a water resistant and chemically stable soda-lime borosilicate glass.The S28HS glass bubbles can withstand the high processing pressure of polymers extrusion and the pressure of seawater in many applications; they offer very good strenght-to-density ratio, making them suitable for a variety of applications: oil and gas, coatings, adhsesives, mastics, sealants, thermoset resin systems
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