Diatomaceous Earth

Diatomaceous earth (or kieselguhr), is a naturally occurring, soft, siliceous sedimentary rock  which consists of the fossilized remains of diatoms, a type of hard-shelled microalgae, that have accumulated over millions of years.

It is used as a filtration aid, mild abrasive in products including metal polishes and toothpaste, mechanical insecticide, absorbent for liquids, matting agent for coatings, reinforcing filler in plastics and rubber, anti-block in plastic films, porous support for chemical catalysts, cat litter, activator in coagulation studies, a stabilizing component of dynamite, a thermal insulator, and a soil for potted plants and trees as in the art of bonsai.

Although occurrence of diatomite is rather common worldwide, the size of deposit and its quality will determine viability; few deposits around the world are suited for filter aid processing.

In the whole Asia-Pacific region, only three deposits located in various parts of Japan and one vast deposit in China’s Jilin Province combine the requirement for size and purity, which insures long-term viability.

Our supplier is active in all four and is the only producer in Asia that offers diatomite products processed from both fresh-water and marine origin diatoms.

In Japan, diatomite and perlite filter aids are considered food additives, and our diatomite filter aids meet the strict requirements of the Japanese Standard for Food Additives.

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