Thermo™ 13mm PTFE/Silicone Septum for Sample Storage Caps, 100-pk

These high-quality Thermo™ 13mm PTFE/Silicone septa provide reliable sealing performance for sample storage vials and caps in chromatography, analytical chemistry, and general laboratory applications. The dual-layer construction combines the chemical inertness of PTFE with the resilience of silicone, ensuring excellent resealing capability and minimal sample contamination for dependable, reproducible results.

• Diameter: 13mm – compatible with standard 13mm screw-thread caps and closures
• Dual-Layer Construction: PTFE face provides superior chemical resistance; silicone backing offers flexibility and resealing properties
• Low Extractables: Minimizes background interference for sensitive analytical techniques including GC and HPLC
• Excellent Piercing Tolerance: Maintains seal integrity through multiple needle punctures
• Package Quantity: 100 septa per pack for economical laboratory use
• SKU: B7995-13