Fumed Silica

Fumed silica, also known as pyrogenic silica because it is produced in a flame, consists of microscopic droplets of amorphous silica fused into branched, chainlike, three-dimensional secondary particles which then agglomerate into tertiary particles. The resulting powder has an extremely low bulk density and high surface area. Its three-dimensional structure results in viscosity-increasing, thixotropic behaviour when used as a thickener or reinforcing filler.

Add to the resin at a ratio of 5% to create a paste that can be brushed or spread into or on to moulds to create hollow castings.


 pdf-image-white.jpg Safety Data Sheet

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