Alumina Bubble is made from high purity alumina. Bubble alumina is used in the production of lightweight insulating refractories where low thermal conductivity and high temperature properties are the prime requirements. Alumina Bubble is also used effectively for loose-fill refractories, i.e. low density, high insulation refractory castable, or concrete, or ceramic bodies. 55 lbs.
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Alumina Bubble 0.5-1mm
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