9mm Blue Screw Cap with Bonded PTFE/Silicone Septa, 100-pk

These premium 9mm blue screw caps feature a bonded PTFE/silicone septum, engineered to deliver reliable sealing performance for autosampler vials in HPLC, GC, and LC-MS applications. The bonded septum construction prevents separation during repeated injections, ensuring consistent sample integrity and minimizing the risk of contamination in demanding analytical workflows.

• Septum Material: Bonded PTFE/Silicone provides excellent chemical resistance and low bleed characteristics
• Cap Size: 9mm diameter, compatible with standard 2mL screw-thread autosampler vials
• Color: Blue cap for easy sample identification and organization
• Bonded Construction: PTFE layer permanently bonded to silicone backing prevents septum delamination
• Resealability: Silicone backing allows for multiple needle punctures while maintaining seal integrity
• Quantity: 100 caps per package | SKU: 4400-02B