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

ST120/5N .125” Thick, Natural PTFE/ White Silicone cut to .800” Diameter. Bags of 100

0510-0800-C

ST120/5N .125” Thick, Natural PTFE/ White Silicone cut to .800” Diameter. Bags of 1000

0510-0800-M

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone cut to .800” Diameter. Bags of 100

0700-0800-C

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone cut to .800” Diameter. Bags of 1000

0700-0800-M

ST2060 .125” Thick, Natural PTFE/ Clear Silicone - Extreme Ultra Low Bleed Cut to .880” Diameter to fit 24-414 or 24-400 Screw Cap. Bags of 100

0700-0880-C

ST2060 .125” Thick, Natural PTFE/ Clear Silicone - Extreme Ultra Low Bleed Cut to .880” Diameter to fit 24-414 or 24-400 Screw Cap. Bags of 1000

0700-0880-M

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone inserted into a Silver 20mm Aluminum Crimp Cap. Bags of 100

0700-2007-C

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone inserted into a Silver 20mm Aluminum Crimp Cap. Bags of 1000

0700-2007-M

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone inserted into a Blue 20mm Bi-Metal Magnetic Crimp Cap. Bags of 100

0700-2201-C

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone inserted into a Blue 20mm Bi-Metal Magnetic Crimp Cap. Bags of 1000

0700-2201-M

ST2060 .125” Thick, Natural PTFE/ Clear Silicone - Extreme Ultra Low Bleed Inserted into a Black 24-414 Open Top Screw Cap. Bags of 100

0700-2402-C

ST2060 .125” Thick, Natural PTFE/ Clear Silicone - Extreme Ultra Low Bleed Inserted into a Black 24-414 Open Top Screw Cap. Bags of 500

0700-2402-D

ST2060 .125” Thick, Natural PTFE/ Clear Silicone - Extreme Ultra Low Bleed Bonded into a Black 24-414 Open Top Screw Cap. Bags of 100

0700-2402B-C

ST2060 .125” Thick, Natural PTFE/ Clear Silicone - Extreme Ultra Low Bleed Bonded into a Black 24-414 Open Top Screw Cap. Bags of 500

0700-2402B-D

ST2060 .125” Thick, Natural PTFE/ Clear Silicone - Extreme Ultra Low Bleed Inserted into a White 24-414 Open Top Screw Cap. Bags of 100

0700-2410-C

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone inserted into a White 24-414 Open Top Screw Cap. Bags of 500

0700-2410-D

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone Bonded into a White 24-414 Open Top Screw Cap in Bags of 100

0700-2410B-C

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone Bonded into a White 24-414 Open Top Screw Cap. Bags of 100

0700-2410B-C

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone Bonded into a White 24-414 Open Top Screw Cap. Bags of 500

0700-2410B-D

ST2060 .125” Thick, Natural PTFE/ Clear Extreme Ultra Low Bleed Silicone Bonded into a White 24-414 Open Top Screw Cap in Bags of 1000

0700-2410B-M
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