How should the decomposition temperature and half-life of peroxide crosslinking agents be matched with the curing process window for Teflon tape?
This article covers how to match decomposition temperature and half-life of peroxide crosslinking agents (BPO and DCP) with the curing process window for Teflon tape. Core data: BPO — 1-min half-life at ~131°C, 1-hr at ~92°C, 10-hr at ~72°C; DCP — 1-min at ~171°C, 1-hr at ~135°C, 10-hr at ~115°C. Matching logic: adhesive needs 97-99% crosslinking = 5-7 half-lives; curing time = 5-7 × half-life at target temperature. Back-calculate temperature from production line residence time or back-calculate time from maximum allowable temperature.
