Description
18mm Steel Magnetic Screw Cap with Blue PTFE/White Silicone Septum, 100-pk
These premium 18mm magnetic screw caps are engineered for reliable sealing in headspace analysis, GC, and GC-MS applications. The steel cap construction with magnetic properties ensures compatibility with automated sampling systems, while the blue PTFE/white silicone septum provides excellent chemical resistance and consistent needle penetration for reproducible analytical results.
- Cap Size: 18mm diameter with magnetic steel construction for autosampler compatibility
- Septum Material: Blue PTFE face bonded to white silicone backing for optimal chemical inertness and resealing properties
- Application: Ideal for headspace vials, GC analysis, and volatile compound testing
- Chemical Resistance: PTFE layer provides superior resistance to acids, bases, and organic solvents
- Quantity: 100 caps per package for cost-effective laboratory supply
- SKU: 4570-318
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