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Surface Treatment

Surface treatment 

Plastic Additives


Improving the functionality of pigments, fillers and flame retardants without increasing the cost? Evonik TEGOPREN® surface treatment portfolio is here for you.


Evonik TEGOPREN® organic modified siloxanes are widely used by the manufacturers of pigments, fillers, and flame retardants to improve the products hydrophobicity and allow for an optimum dispersion in the polymer matrix. 

In a typical thermal conductive polymer compound application, functional fillers such as Al2O3, give a higher thermal conductivity efficiency, after surface treatment with either TEGOPREN® 6875 or TEGOPREN® 6879.

Besides 100% active products, Evonik also offers emulsions that can be applied in a aqueous step to the slurry or filter cake. 


Product Listing

  • TEGOPREN® 5885

    Oganomodified Siloxane. Additive for MDH-based HFFR cable compounds.

  • TEGOPREN® 6875

    TEGOPREN® 6875 is a liquid alkyl modified siloxane (liquid silicone wax) to be used for surface treatment of inorganics fillers and any pigments used in thermoplastic formulations.

  • TEGOPREN® 6875-45

    Organomodified siloxane, emulsion.

  • TEGOPREN® 6879

    TEGOPREN® 6879 is an organo-modified siloxane to be used for surface treatment of inorganic fillers, pigments and flame retardents making them easier dispersible in thermoplastics formulations.

  • TEGOPREN® 6879-50

    TEGOPREN® 6879-50 is a liquid dispersing additive used for surface treatment to improve dispersion properties of flame retardants, inorganic fillers, organic and inorganic Pigments in polyolefines and engineering resins.

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Product Overview "Additives for Masterbatcher, Compounder and Converter"

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This overview includes our product portfolio of additives for masterbatchers, compounders and converters. We offer a broad range of products such as colorants, adjuvants for surface treatment as well as specialty additives for miscellaneous applications.