Grefco Minerals, Inc

Oicalite Diatomite functional fillers are produced from dlatonaceous earth, a versatile and valuable raw material. 

Diatomite is more than just a crystal or mineral that formed in a rock. It consists of delicately constructed silica skeletons grown by uncounted microscopic organisms each with its own design. Deposits of these skeletons are collections of solid and parforated rods, disks, hemispheres, crescents and polygons. Because of their unusual physical structure the particles interlace and overlay in a random, three dimensional matrix which stiffens, reinforces and improves the durability of filled systems. This myriad of shapes also offers major advantages in terms of low density and high absorption. 

Brightness (G.E.) 70 Oil Absorption (GCOA), wt% 175 Hegman Grind 3.5/MPD (micron) 8.9 In polyester resin 

Gretco Minerals. Inc. DIATOMITE Functional Flllera fContinuedl  

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Celatom Flux Fine Fillers Ultrabloc, Cela-Brite, MW-25, Ultraflat, MW-27, MW-31, MW-32 fillers designed for different applications listed below Celatom line of filtering and polishing media Grefco Minerals, Inc., Torrance, CA, USA... 

Figure 2.23. SEM micrographs of diatomites. Courtesy of World Minerals, Inc., Lompoc. CA and Grefco Minerals, Inc., Lompoc, CA (figures in the first row).

Figure 2.27. Dicaperl FlP-510. Magnification ISOOx. Courtesy of Grefco Minerals, Inc., Torrance, CA, USA.

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