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For wire and cable insulation used indoors, fire and smoke safety is important. DuPont insulation resins include low oxygen index (LOI) fluoropolymers as well as polymers used in highly filled PVC and nonhalogenated jacketing.

Outdoors, DuPont polymer science goes into power cables that can be stripped and spliced more easily, wiring with improved flexibility, and underground cables that can better withstand moisture and abrasion.

Specialized DuPont materials also help wire and cable manufacturers assemble better shielded and easier-to-install components in data communications wiring and optical fiber jacketing.