Sikron®

Treated Quartz

Quartz is the starting point for Sikron which is a washed and dried pure form of quartz. It is then sent for several stages of grinding resulting in a narrow particle size distribution of approximately 2-11 micron. High degree of chemical purity has been achieved.

This fine silica flour can be further modified by heating in a rotary furnace at 1500’C to produce another calcined ...    Read more  


Quartz is the starting point for Sikron which is a washed and dried pure form of quartz. It is then sent for several stages of grinding resulting in a narrow particle size distribution of approximately 2-11 micron. High degree of chemical purity has been achieved.

This fine silica flour can be further modified by heating in a rotary furnace at 1500’C to produce another calcined version called Cristobalite. This process reduces the density, improves the brightness and whiteness which in turn modifies the refractive index. The particle size is now in the region of 2-7 micron.

These grades can be surface treated with tri-methylsilane to enable compatibility with silicone elastomers.



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Features


    • Cristobolite versions have a refractive index of 1.48

    • Cristobolite versions absorb IR

    • High loadings are possible

    • Good bonding between polymer and mineral

    • Coated grades bond well with silicones

Benefits


    • Used as an anti block in transparent agricultural films

    • Reduces heat emission in transparent agricultural films

    • Low density for a filler so economical to use

    • Good abrasion resistance in PMMA & polyester resins

    • Increased electrical insulation & elasticity in silicones

    • Reduced contraction during silicone curing

Typical Applications


    • Green houses and poly tunnels

    • Filler in epoxy and polyester resins

    • Silicone elastomers


     

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