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

x
Product DescriptionProduct ID

ST2373 ULB .125” Thick, Natural PTFE/ White Silicone - Ultra Low Bleed Inserted into a Blue 20mm Bi-Metal Magnetic Cap . Bags of 100

1893-2201-C

ST2373 ULB .125” Thick, Natural PTFE/ White Silicone - Ultra Low Bleed Inserted into a Blue 20mm Bi-Metal Magnetic Cap . Bags of 1000

1893-2201-M

ST2300 ULB .040” Thick, Red PTFE/ White Silicone - Ultra Low Bleed Inserted into an 11mm Silver Aluminum Crimp Cap. Bags of 100

2304-1107-C

ST2300 ULB .040” Thick, Red PTFE/ White Silicone - Ultra Low Bleed Inserted into an 11mm Silver Aluminum Crimp Cap. Bags of 1000

2304-1107-M

2304-1207-C. ST2300 ULB .040” Thick, Red PTFE/ White Silicone - Ultra Low Bleed Inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 100

2304-1207-C

2304-1207-M. ST2300 ULB .040” Thick, Red PTFE/ White Silicone - Ultra Low Bleed Inserted into an 11mm Silver Aluminum Magnetic Crimp Cap. Bags of 1000

2304-1207-M

SSP2393, 96 Square sealing mat made with 100% Premium Clear Ultra Low Bleed Silicone. Bags of 5

2393-2-V

SSP2393Clear-X Pre-Slit 96 Square, Ultra Low Bleed, Cap Mat made with 100% Premium Silicone. Bags of 5

2393-22-V

SSP2401Clear 96 Round (7mm Diameter Plug) Cap Mat made with 100% Premium Ultra Low Bleed Silicone. Bags of 5

2401-1-V

SSP2401Clear-X Pre-Slit 96 Round (7mm Diameter Plug) Cap Mat, made with 100% Premium Ultra Low Bleed Silicone. Bags of 5

2401-12-V

ST2500 ULB .040" Thick, Red PTFE/ White easy pierce silicone - Ultra Low Bleed Inserted into an 11mm Clear Snap Cap. Bags of 100

2404-4100-C

ST2500 ULB .040" Thick, Red PTFE/ White easy pierce silicone - Ultra Low Bleed Inserted into an 11mm Clear Snap Cap. Bags of 1000

2404-4100-M

ST2500 ULB .040" Thick, Red PTFE/ White easy pierce silicone - Ultra Low Bleed Inserted into an 11mm Blue Snap Cap. Bags of 100

2404-4101-C

ST2500 ULB .040" Thick, Red PTFE/ White easy pierce silicone - Ultra Low Bleed Inserted into an 11mm Blue Snap Cap. Bags of 1000

2404-4101-M

ST2500 ULB .040" Thick, Red PTFE/ White easy pierce Silicone - Ultra Low Bleed Inserted into an 8mm Silver Aluminum Crimp Cap. Bags of 100

2404-8050-C

ST2500 ULB .040" Thick, Red PTFE/ White easy pierce Silicone - Ultra Low Bleed Inserted into an 8mm Silver Aluminum Crimp Cap. Bags of 1000

2404-8050-M

ST2500 ULB .040" Thick, Red PTFE/ White easy pierce Silicone - Ultra Low Bleed Inserted into a 9mm Blue Ribbed Screw Cap. Bags of 100

2404-9501-C

ST2500 ULB .040" Thick, Red PTFE/ White easy pierce Silicone - Ultra Low Bleed Inserted into a 9mm Blue Ribbed Screw Cap. Bags of 1000

2404-9501-M

ST2500-X ULB .040" Thick, Pre-Slit, Red PTFE/ White easy pierce Silicone - Ultra Low Bleed Inserted into a 9mm Blue Ribbed Screw Cap. Bags of 100

2404-95011-C

ST2500-X ULB .040" Thick, Pre-Slit, Red PTFE/ White easy pierce Silicone - Ultra Low Bleed Inserted into a 9mm Blue Ribbed Screw Cap. Bags of 1000

2404-95011-M