Flare cap, N 20, aluminum, gold, center tear-off, butyl dark grey/PTFE grey, 3mm

Description

Center tear-off caps are flared caps with tamper-evident protection. To penetrate the septum, the hole must first be made accessible by removing the center cover. This product consists of caps with a butyl/PTFE molded disc, which are only laminated with PTFE in the area of contact with the sample. In this way, the elastomeric butyl can achieve a particularly good seal on the glass edges of the bottle, while fully PTFE-laminated septa have a very slippery surface on the glass and can therefore be easily rotated.