SIGRATHERM® Graphitized Microballoons

SIGRATHERM<sup>®</sup> Graphitized Microballoons

What are microballoons?

Microballoons are hollow microspheres appearing as a fine powder. In contrast to microcapsules they are not filled with a fluid but with air or an inert gas. Their size can vary considerably depending on their intended use, diameters usually range from 1 - 300 µm. Microballoons are lightweight, chemically stable, have a 1:1 aspect ratio due to their spherical structure and can be made from several materials like glass, ceramics, polymers, metals, carbon and graphite. They function as superior performance fillers and additives in composite materials.

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