Headspace Septa

Headspace Septa

Low-Bleed PTFE/Silicone is one of the most commonly used headspace septa materials, and the one with the best per formance characteristics. 

The PTFE provides a barrier for chemical resistance. The Silicone layer provides an analytically clean backing material that ensures a good seal with the surface of the vial, and affords some degree of resealability when punctured. Silicone is also the best choice for high temperature work as it will perform up to about 200 C. 


Click Item # to select.

Item# Product Description Size Unit Unit Price
QP3200.020.700A Natural Silicone/Natural PTFE, Headspace Septa Natural PTFE/Natural Silicone - Loose Septa Only, fits 20mm seals 20mm Pkg of 100 Quote
QP3200.020.700 QP3200.020.700 Natural PTFE/Natural Silicone - Loose Septa Only , fits 20mm seals 20mm Pkg of 1000 $360.16