PTFE disk septa are chemically inert · PFTE/red rubber septa are economical for many GC applications · PTFE/silicone septa are most popular for HPLC and IC 

Septa are 0.035” White Silicone with 0.005” Red PTFE. High quality silicone is used to ensure proper re-sealing and reduced coring.

The silicone rubber and PTFE liner used in Soft-Guard™ caps were designed to provide the right amount of resistance to autosampler needles during the injection 

2ml HPLC Vials, Lab Autosampler Vials, 9-425 Clear Vial with Writing Area and Graduations, Screw Cap, Red PTFE and White Silicone Septa, 100 Pcs/Pack.

Cap/Septum has a natural White polytetrafluoroethylene (PTFE) and Red silicone septa that is chemically resistant and highly resealable.

red PTFE/white silicone, diam. × thickness 8 mm × 1.5 mm, pkg of 100 ea.

easy, affordable way to order matching vials, caps, and septa, red. Seal, 11 mm Diameter,. Snap, PTFE/Silicone preSlit, ... Silicone septa (white/.

Google search educated me that the red surface is the PTFE material compatible to wider range of chemical compared to the white silicone surface.

Red PTFE/White Silicone Septa + Red Screw Cap with Hole, for 2ml 9-425 Screw Top Glass Vial, 100/pk · A wide variety of caps with different septa are available 

Closure Type: Screw cap (centre hole) with septa. Closure Material: PP. Closure Colour: Blue. Closure Size: ND 9. Septa Material: PTFE red/Silicone white, 

Zhejiang Aijiren Technologies Co.,Ltd is one of the leading China 9-425 hplc red white 9mm ptfe silicone septa manufacturers and suppliers, 

Preassembled 11mm crimp-top aluminum caps with white PTFE/red silicone septa, 5.5 mm center hole. To use with 11mm crimp-top vials (sold separately, cat.

Specifications ; Red/White · 11 mm · PTFE/Silicone · Caps/Septa · 100.0.

9mm Septa are available in PTFE/ Red Rubber, PTFE/Silicone or Red PTFE/White Silicone/Red PTFE to suit a variety of applications.

Vials, Screw Cap & Septa Only, PTFE Red/Silicone White/PTFE Red, 45° shore A, 1.0mm slit, 100/pk · In stock. These items are in stock and ready to ship. · Out of