Clean Septa, Septum Caps, and Cap Mats for Analytical Purity

Specialty Silicone Products (SSP) makes standard and custom septa, septum cap assemblies and cap mats for liquid and gas chromatography, EPA/VOA testing, laboratory diagnostics, and chemical packaging.

Product Categories

PFAS-Free Products

SSP has developed a PFAS-free 9MM screw cap with a polypropylene/silicone septa. Read EPA final ruling here.

Autosampler Septa

SSP manufactures a wide range of autosampler caps and septa that are analytically pure and easy to pierce.

Bonded Caps

Bonded caps from SSP are made of polypropylene (PP) and bonded with PTFE/Silicone septa that is easy to pierce.

High Purity ULB Septa

Specifically formulated and manufactured resulting in a virtually analytically pure, ultra low bleed septum.

EasyPierce™ Septa

Easy Pierce™ septa from SSP are specifically formulated to pierce easier with fragile/thin syringes.


Our ultra pure PTFE/Silicone septa are ideal for U.S. EPA water and soil testing requirements.

Magnetic Caps

Magnetic caps are designed for autosamplers, such as CTC’s Pal system, that use a magnet to move vials.

Cap Mats

Our 96 well ultra pure cap mats protect samples for high speed throughput testing. Available with pre-slit plugs too.

GC Septa

GC septa from SSP are ultra pure, high temp resistant and long lasting for multiple injections.

Custom Septa

Custom septa from Specialty Silicone Products (SSP) are available for just about any application that requires analytical purity. At our manufacturing facility in Ballston Spa, New York, we have one of the industry’s largest ranges of dies, molds, caps, and silicone formulations. With our application knowledge and technical expertise, SSP can create the custom septa or septa/cap assembly that you need. 

From Our Blog


SSP Prepares for Potential PFAS Restrictions

Per- and polyfluoroalkyl substances, more commonly called PFAS, are a category of widely used chemicals with components that break down very slowly over time.  They are often called “forever chemicals”

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Welcome to SSP’s Septa Blog

Specialty Silicone Products (SSP) is pleased to introduce a new online resource for members of the laboratory diagnostic, environmental testing, pharmaceutical, and chemical packaging industries. SSP’s Septa Blog is the

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