3M(TM) GLASS BUBBLES K46

3M Glass Bubbles K46 are glass spheres with a typical density of 0.46 g/cc and an isostatic crush strength of 6,000 psi for good strength-to-density ratio. K46 can be used in thermoplastic compounding, extrusion processes and in insulation coatings in deep water applications. They produce strong, stable voids with low thermal conductivity, helping coatings achieve the necessary strength.