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Technical Paper

High Temperature Ignition Core Fabrication Using a Liquid Silicone Rubber

This paper describes a unique method of fabricating high performance silicone parts with liquid silicone rubber (LSR). Both molding and extrusion techniques will be introduced but emphasis will be on fabrication of automotive ignition core. Liquid silicone rubber offers several advances over current systems. It contains no solvent, is pumpable, and produces a core that is round and smooth, reducing the possibilities of stress point failure in cable construction. Good shelf life and a long working time are characteristic of the system along with rapid cure rates and excellent heat resistance. Data will be presented covering thermal life, electrical conductivity and typical physical properties.