BREAKSEAL

摘要

A breakseal, and a method for making a breakseal, having a first layer of extruded MDPE or LDPE/LLDPE film in a flat washer shape defining a central opening therein and a second layer of PTFE film heat laminated to a first side of the first layer. The second layer is exposed and rupturable through the central opening of the first layer. In some embodiments, the first layer is made up of two sub-layers of MDPE or LDPE/LLDPE film in flat washer shapes bonded together by heat lamination. In another embodiment, a breakseal comprises a single component, molded structure including an outer rim portion having a first thickness and defining a central opening therein, and a central seal portion having a second thickness being smaller than the first thickness, wherein the central seal portion spans the central opening and is integrally formed with the outer rim portion.