Flare cap, N 20, aluminum, full tear-off, butyl dark grey/PTFE grey, 3.0 mm

Description

Full tear-off caps are flared caps that can be removed without the aid of opening pliers by tearing open the cap from the center to over the cap walls. 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.