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POLYMER PROCESSING ADDITIVE
3M™ Glass Bubbles XLD3000 are hollow glass spheres with a typical density of 0.23 g/cc and an isostatic crush strength of 3,000 psi.
3M™ Glass Bubbles S15 are hollow glass spheres with a density of 0.15 g/cc and an isostatic crush strength of 300 psi. These glass bubbles are designed for a number of industries, including auto body repair fillers and syntactic foams for deep water buoyancy. The bubbles produce strong, stable voids and low thermal conductivity, helping the coating achieve the necessary compressive strength.