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Shin-Etsu Silicones of America makes their documentation available in the regions indicated below:

KBM-303 is an epoxy functional methoxysilane that is used in many different types of applications including primers, adhesion promoters, scratch resistant coatings, encapsulants, and gaskets. This coupling agent improves the mechanical strength, water resistance, and heat resistance of complex materials containing inorganic fillers and organic polymers. It is suitable for a wide variety of heat curable systems like epoxies, phenolics, melamines, and urethanes, as well as thermoplastic elastomers like polycarbonate, nylon, polystyrene, PET, PBT, and ABS. Epoxysilanes have replaced aminosilanes in several applications, resulting in significantly improved performance. KBM-303 works well with most of the common inorganic substrates such as glass, silica, mica, alumina, clay, and talc, as well as most metals, such as iron and copper.


Shin-Etsu Silicones produces silicones and silicone products for the Paints and Coating Industry. They provide first rate silicone compounds to develop and increase the reliability and all around performance of a product. One such product type, Silane Coupling Agents, are used as a mediator that helps improve and support bonds between inorganic and organic materials. This allows for surface modification and resin modification to take place. It also aids in the increased adhesion and the enhancement of the mechanical durability of composite materials.

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