11mm Snap Top Caps with Septa

The product consists of a cover and a gasket. The caps are made from high-quality polypropylene and feature crimp or snap-on shapes that are compatible with robotic autosamplers. The pre-assembled septa reduce the chance of contamination during sample preparation while saving sample preparation time in the lab. . Gaskets are made using PTFE/silicone septa. High-quality pure silicone is laminated to PTFE to create a pure, highly inert membrane with excellent reseal properties even after repeated punctures. The snap-on lid provides a secure seal, minimizing evaporation even with volatile samples, and the click ensures that a secure seal has been formed and the lid is properly closed. Snap caps come with pre-assembled septa and are compatible with Aijiren vials and other snap-ring vials. Snap-ring seals N11 can only be used in HPLC because the well-timed compression of the septum at the edge of the vial by the four pins in the cap cannot achieve the same tightness as uniformly applied pressure by threading or crimping.