Calcined Diatomaceous Earth Powder is calcined diatomite functional mineral filler as direct replacement for Celite 499. High‑temperature calcination removes organic impurities and modifies particle morphology. When incorporated into rubber and plastic formulations, this powder enhances the rigidity and anti‑deformation performance of polymer composites, reduces shrinkage, and improves surface characteristics of molded rubber‑plastic parts.

Product Detail

Product Overview Calcined Diatomaceous Earth Powder (CAS 61790‑53‑2, Celite 499 Equivalent) is natural diatomaceous earth processed by high‑temperature calcination. Calcination eliminates volatile organic components and modifies porous particle structure. During rubber and plastic compounding, the fine mineral powder disperses uniformly within the polymer matrix. It delivers reinforcing effect, increases composite rigidity, restricts molding shrinkage and improves dimensional stability of finished molded articles. Meanwhile, it optimizes surface matte texture of rubber and plastic products. This mineral filler is suitable for thermoplastic, thermoset and general rubber compounding in polymer processing facilities.

Key Features ‑ High‑temperature calcination removes organic impurities with low volatile content ‑ Reinforces polymer rigidity and improves anti‑deformation performance for rubber‑plastic composites ‑ Reduces molding shrinkage and stabilizes dimensional performance of molded components ‑ Creates subtle matte surface texture on finished rubber and plastic articles ‑ Direct functional equivalent grade for Celite 499 calcined diatomaceous earth filler

Typical Technical Properties ‑ Chemical Type: Calcined natural diatomaceous earth ‑ Appearance: Off‑white to light beige free‑flowing fine powder ‑ Particle Size: Refer to TDS ‑ Bulk Density: Refer to TDS ‑ Oil Absorption Value: Refer to TDS

Applications ‑ Rubber compounding: Functional mineral filler for technical rubber moulded parts ‑ Thermoplastic modification: Reinforcing filler for modified plastic granules ‑ Thermoset composite: Mineral filler for hard thermoset molded components ‑ Polymer compounding plant: Raw calcined diatomaceous earth for rubber‑plastic formulation

Processing Recommendation Feed calcined diatomaceous earth powder in the high‑speed mixing stage before extrusion or internal‑mixer kneading. Adjust filler loading according to targeted rigidity and surface matte requirements. Guarantee sufficient mixing for homogeneous dispersion. Complete lab compounding trials prior to mass production.

Storage & Handling Store in cool, dry warehouse and protect against moisture. Reseal packaging after opening. Wear dust‑proof mask and protective gloves when handling fine mineral powder.

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Calcined Diatomaceous Earth Powder CAS 61790-53-2 Rubber Plastic Functional Filler (Celite 499 Equivalent)

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.