Functional Siliceous Earth Filler is a high‑hardness natural siliceous mineral filler as direct replacement for Hoffmann Sillitin N85. When incorporated into rubber and plastic formulations, this mineral filler provides matting effect on finished surfaces. It enhances material hardness and scratch‑resistant property, improves dimensional stability and reduces shrinkage for rubber and thermoplastic composite products.

Product Detail

Product Overview Functional Siliceous Earth Filler (CAS 61790‑53‑2, Hoffmann Sillitin N85 Equivalent) is refined functional siliceous earth mineral filler dedicated for rubber and plastic systems. Uniform fine mineral particles disperse inside polymer matrix during compounding. It contributes consistent matting effect to finished surfaces, increases overall hardness and scratch resistance of rubber‑plastic parts. Meanwhile, the mineral filler restrains thermal shrinkage and improves dimensional stability of molded components. This mineral filler is suitable for compounding of thermoplastics, thermosets and various rubber grades in polymer processing plants.

Key Features ‑ Delivers effective matting performance for rubber and plastic finished surfaces ‑ Raises substrate hardness and improves scratch‑resistance of polymer composites ‑ Reduces molding shrinkage and enhances dimensional stability of molded parts ‑ Good dispersibility inside rubber and thermoplastic compounding systems ‑ Direct functional equivalent grade for Hoffmann Sillitin N85 mineral filler

Typical Technical Properties ‑ Chemical Type: Refined natural functional siliceous earth ‑ Appearance: Off‑white fine free‑flowing powder ‑ Bulk Density: Refer to TDS ‑ Particle Size: Refer to TDS ‑ Hardness Index: Refer to TDS

Applications ‑ Thermoplastic compounding: Matting and hardness‑boosting filler for modified plastic granules ‑ Rubber formulation: Mineral filler for technical rubber molded components ‑ Thermoset system: Functional mineral filler for hard thermoset composite parts ‑ Polymer compounding plant: Raw mineral filler for custom rubber‑plastic modification

Processing Recommendation Add siliceous earth filler during high‑speed mixing stage of rubber‑plastic compounding. Adjust loading dosage according to target matting degree and hardness requirement. Ensure sufficient mixing to achieve homogeneous dispersion. Conduct lab compounding trials prior to large‑scale production.

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

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Functional Siliceous Earth Filler CAS 61790-53-2 High Hardness Matting Rubber Plastic Filler (Hoffmann Sillitin N85 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.