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3M™ Glass Bubbles S42XHS are hollow glass spheres with a typical density of 0.42 g/cc and an isostatic crush strength of 8,000 psi. These glass bubbles are designed for buoyancy and insulation in ultra-deep water applications in oil and gas drilling. The bubbles produce strong, stable voids and low thermal conductivity, helping coatings achieve the necessary compressive strength.
DESIGNED TO IMPROVE THE PROCESSING OF THERMOPLASTICS