Silicone Rubber (S.I.R.), with its inorganic backbone, stands as the unrivaled specialist for harsh electrical environments, wide temperature extremes, and situations where ultimate hydrophobicity is key. EPDM, the organic workhorse, offers unparalleled mechanical toughness, excellent all-weather performance, and proven reliability for the vast majority of underground and general-purpose applications.
By understanding the profound connection between their chemical origins and their real-world performance, engineers and technicians can make an informed, strategic choice.