Diatomaceous Earth (DE) is a natural silica source formed from the sedimentation of single cell aquatic organisms called diatoms. DE can form in marine or fresh water environments and exhibit properties that are related to their unique shape and structure. These properties vary according to the diatom species found in each deposit, each with differing chemistries, shape factor and pore structures. Diatomite is the name of processed DE.


Natural grades are dried, milled and classified. The naturally bright ore is dried at about 200° C, sized and packaged. There is no high heat treatment:


Celite 266
Celite 289
Celite Celtix
Celite Snow Floss


Calcined grades are processed in a rotary kiln at high temperatures (calcination) to remove impurities and impart desirable rheological characteristics:


Celite 350
Celite Filter Cel
Celite PS
Celite 577
Celite Standard Super-Cel


Flux-calcined grades are mixed with a flux agent and processed in a rotary kiln at 1600-1800°F. In this process, the diatomite agglomerates, is further purified, and becomes a brighter white. Flux calcined grades provide high flatting efficiency and brightness:


Celite 281
CeliteHyflo Super-Cel
Celite Super Fine Floss
Celite 499
CeliteSuper Floss
Celite White Mist  

Diatomite is useful as a functional additive in a wide variety of applications due to its unique combination of physical properties, including:


• High porosity and surface area
• Thermal and chemical stability
• Unique particle structure, shape and size
• Low specific gravity
• Minimal interaction with other additives
• Whiteness


CelTiX offers extraordinary hiding power with moderate gloss control, and may be combined with Celite flux calcined or DiaFil natural grades to produce high-hiding, dead-flat finishes.

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