CGIM LLC is a trusted PTFE gasket manufacturer offering custom cut PTFE and Teflon gaskets to match the exact specifications of your application. From standard PTFE gasket sheet material to expanded PTFE tape gaskets and precision cut ring gaskets, we supply the full range of configurations needed for demanding chemical, industrial, and process sealing environments. Whether you call it a PTFE gasket or a Teflon gasket, both terms refer to the same material and we have you covered either way.
Why Choose PTFE Gaskets?
PTFE gasket material is one of the most chemically resistant sealing materials available, making it a preferred choice for engineers working with aggressive media including acids, alkalis, and solvents. PTFE gaskets perform reliably across an exceptionally wide temperature range, handling continuous service temperatures from cryogenic conditions up to approximately 500 degrees Fahrenheit depending on the configuration and operating pressure.
Beyond chemical resistance, PTFE gasket material offers a naturally low coefficient of friction, which means it resists material buildup and is far easier to remove after extended service compared to rubber or compressed fiber alternatives. PTFE is also FDA compliant, making it a go-to choice in food processing, pharmaceutical manufacturing, and other sanitary applications where material purity is a hard requirement.
Types of PTFE Gaskets
PTFE Gasket Sheet
PTFE gasket sheet is the standard starting material for most custom PTFE gasket cutting applications. It is available in virgin, filled, and glass-filled grades to accommodate a broad range of operating pressures, temperatures, and bolt load requirements.
PTFE Ring Gasket
A PTFE ring gasket, also referred to as a Teflon ring gasket, is used in flanged pipe connections across a wide variety of industrial piping systems. Ring gaskets are precision cut to match standard or custom flange dimensions and deliver a reliable seal in high chemical exposure service.
Expanded PTFE Tape Gasket
Expanded PTFE tape gaskets are a highly conformable sealing solution for irregular or damaged flange surfaces. The soft, porous structure of expanded PTFE allows it to fill surface imperfections and create an effective seal at lower bolt loads than traditional sheet gaskets.
Filled PTFE Gaskets
Filled PTFE incorporates additives such as glass fiber, carbon, or graphite to improve mechanical properties including compressive strength and creep resistance. Filled grades are commonly used in high pressure or elevated temperature flanged connections where virgin PTFE may not provide adequate long-term performance.
How to Choose the Right PTFE Gasket
Choosing the correct PTFE gasket comes down to matching the material grade and configuration to your specific operating conditions. Key factors to evaluate include the media being sealed, operating temperature and pressure, flange type and surface condition, and any required compliance standards such as FDA or USP.
For aggressive chemical service, virgin or filled PTFE gasket sheet is typically the right starting point. For irregular or low load flange surfaces, an expanded PTFE tape gasket is usually the better option. For standard piping connections, a precision cut PTFE ring gasket or Teflon ring gasket will provide the most consistent long-term seal.
As an experienced PTFE gasket manufacturer, CGIM LLC offers custom PTFE gasket cutting and custom Teflon gasket cutting to match any standard or non-standard flange dimension. Whether you need a one-off prototype or production volume, we can deliver to your specifications.
FAQs
What is PTFE gasket material used for?
PTFE gasket material is used to create reliable seals in flanged piping systems, pumps, valves, and process equipment across chemical processing, food and beverage, pharmaceutical, semiconductor, oil and gas, and water treatment industries.
Do you offer custom PTFE gasket cutting?
Yes. CGIM LLC provides custom PTFE gasket cutting and custom Teflon gasket cutting services to meet your exact dimensional requirements. We work from drawings, samples, or standard flange specifications.
What is the difference between a PTFE gasket sheet and an expanded PTFE tape gasket?
PTFE gasket sheet is a dense, solid material used for precision cut gaskets in standard flanged connections. Expanded PTFE tape gasket material is softer and more compressible, making it ideal for sealing irregular surfaces or applications where lower bolt loads are required.