3M Glass Bubbles K Series, K20, 60 lb (27.2 kg), Small Box

Caractéristiques

• "Made from hollow, water-resistant, et chemically-stable soda-lime-borosilicate glass Each bubble has a crush strength of 500 psi (3.45 MPa) et a density of 0.2 g/cc Good strength-to-density ratio Offre excellent water et oil resistance pour underwater applications Fournit buoyancy in syntactic foam compositions Creates stable voids pour faible thermal conductivity et a reduced dielectric constant faible density"