UPC# 00 021200 86429 2 3M ID 70070429629
 | Description3M Glass Bubbles S32 have a density of 0.32 g/cc and an isostatic crush strength of 2000 psi. The S Series glass bubbles have smaller particle sizes than the K Series. Like all 3M glass bubbles, they are virtually insoluble in water or oil. Description3M Glass Bubbles S32 have a density of 0.32 g/cc and an isostatic crush strength of 2000 psi. The S Series glass bubbles have smaller particle sizes than the K Series. Like all 3M glass bubbles, they are virtually insoluble in water or oil.
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