| Overall Benefits: Huber Engineered Materials’ Hymod® M9400 SP aluminum hydroxide (ATH) is a vinyl functionalized, precipitated grade developed for peroxide-cured silicone rubber. Everything about this product has been optimized for maximum performance in high-voltage, silicone rubber insulator compositions. The resulting product performs well on the job. Silicone rubber compound containing Hymod® M9400 SP does not stick in the mold. This increases the value of your compound to your customers. They will save money by reducing the number of rejected parts. Product Advantages: The Hymod®M9400 SP product has a narrow particle size distribution for optimum particle spacing in silicone. Optimum particle spacing in turn provides for maximum resistance to carbon tracking. Aluminum hydroxide has a polar surface, making it difficult to fully disperse in non-polar resins such as silicone rubber. The SP surface treatment reduces surface tension between the ATH and silicone, permitting optimum wet-out and dispersion. Mold fouling can happen if the surface treatment is not optimized for proper level and attachment to the ATH surface. Hymod® M9400 SP ATH will not contribute to mold fouling. Extensive testing has been conducted to ensure that Huber’s production protocol: Delivers precisely the right amount of surface treatment; Yields a superior, treated ATH product free from residual silanols. Performance: Long-term outdoor performance of silicone rubber in applications such as line post insulators, dead end insulators, suspension insulators and surge arrestors requires hydrophobicity. With the highly consistent surface treatment on Hymod® M9400 SP aluminum hydroxide, the surface is extremely hydrophobic for optimum resistance to environmental water pick-up. A complete product specification is available upon request. Processability: This precipitated Hymod® M9400 SP aluminum hydroxide product is easy to use as long as processing temperatures stay below the ATH decomposition temperature of 200?C. Compatibility: Aluminum hydroxide is soluble in strong acids and alkalies. Information provided by J.M. Huber Corporation |
