High Purity Septa

High purity septa from SeptaSource has ultra low bleed (ULB).

Do you perform GC/MS, LC,MS, or other highly sensitive analytical testing? Then you need little or no interference peaks on your chromatographs. Unfortunately, standard PTFE/silicone septa just can’t deliver the results that you need.

Ultra Low Bleed Septa

Specialty Silicone Products, Inc. (SSP) understands the criticality and importance of your need for a high purity, ultra low bleed (ULB) septum.

That’s why we have specifically designed our ULB septa to use the highest purity silicone rubber and PTFE film, in conjunction with a rigorous curing and conditioning process.

Wouldn’t you prefer to get get septa that are virtually analytically pure? That’s why you need SeptaSource.

What Does “Ultra-Low Bleed” Mean?

Bleed refers to the release of volatile or semi-volatile compounds from the sealing material into the sample. Ultra-low bleed materials minimize this contamination, which is essential in sensitive analytical techniques like GC-MS (Gas Chromatography-Mass Spectrometry) or LC-MS (Liquid Chromatography-Mass Spectrometry). 

Ultra Low Bleed Septa With or Without Caps

These clean, pure septa are available inserted into a wide range of screw, snap and crimp caps. We can also provide these septum by themselves, without a cap.

These high purity septum are available bonded into 9mm screw caps, 13-425 screw caps, and 24-414 screw caps. These high purity, ultra low bleed septum are unmatched

High Purity Septa ISO 9001:2015 Quality

All our septa are Made in the USA at our ISO 9001:2015-certified facility in Ballston Spa, New York facility.

Products

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Product DescriptionProduct ID

0886-1812-C. ST2150 .060" Thick, Durometer 55, Blue PTFE/ White Silicone - Ultra Low Bleed Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 100

0886-1812-C

0886-1812-C5. ST2150 .060" Thick, Durometer 55, Blue PTFE/ White Silicone - Ultra Low Bleed Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 100

0886-1812-C5

0886-1812-C |  ST2150 .060" Thick, Durometer 55, Blue PTFE/ White Silicone - Ultra Low Bleed Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 100

0886-1812-C

ST2150 .060" Thick, Durometer 55, Blue PTFE/ White Silicone - Ultra Low Bleed Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 1000

0886-1812-M

ST2151 .050" Thick, Durometer 45, Red PTFE/ White Silicone - Ultra Low Bleed Cut to .691" Diameter. Bags of 100

0895-0691-C

ST2151 .050" Thick, Durometer 45, Red PTFE/ White Silicone - Ultra Low Bleed Cut to .691" Diameter. Bags of 1000

0895-0691-M

ST2151 .050" Thick, Durometer 45, Red PTFE/ White Silicone - Ultra Low Bleed Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 100

0895-1812-C

ST2151 .050" Thick, Durometer 45, Red PTFE/ White Silicone - Ultra Low Bleed Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 1000

0895-1812-M

ST2152 .125" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed Cut to .691" Diameter. Bags of 100

0900-0691-C

ST2152 .125" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed Cut to .691" Diameter. Bags of 1000

0900-0691-M

ST2152 .125" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 100

0900-1812-C

ST2152 .125" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed, Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 1000

0900-1812-M

ST2152 .050" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed Cut to .691" Diameter. Bags of 100

0905-0691-C

ST2152 .050" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed Cut to .691" Diameter. Bags of 1000

0905-0691-M

ST2152 .050" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed, Inserted into an 18mm Magnetic Aluminum Screw Cap. Bag of 100

0905-1812-C

ST2152 .050" Thick, White PTFE/ Translucent Blue Silicone - Ultra Low Bleed, Inserted into an 18mm Magnetic Aluminum Screw Cap. Bags of 1000

0905-1812-M

9.5mm Diameter, SSP2115, 3mm Thick, General Purpose Precision Molded Purple GC Septa with Ultra Low Bleed and Long Life. Jars of 50

1440-0375-L

10mm Diameter SSP2115, 3mm Thick, General Purpose Precision Molded Purple GC Septa with Ultra Low Bleed and Long Life. Jars of 50

1440-0394-L

11mm Diameter SSP2115, 3mm Thick, General Purpose Precision Molded Purple GC Septa with Ultra Low Bleed and Long Life. Jars of 50

1440-0433-L

9.5mm Diameter SSP2115, 3mm Thick, General Purpose Precision Molded Purple GC Septa with GUIDE HOLE, Ultra Low Bleed and Long Life. Jars of 50

1450-0375-L