Teflon® (PTFE – Polytetrafluoroethylene)
Teflon® PTFE (polytetrafluoroethylene) is a fluoropolymer known for its exceptional chemical resistance, low friction, and wide service temperature range. It is virtually inert to most chemicals and offers excellent non-stick and electrical insulation properties, making it suitable for harsh chemical and high-purity environments.
PTFE components are typically produced through compression molding and machining, with filled grades available to improve wear resistance, strength, and dimensional stability.
Key Performance Characteristics
Exceptional chemical resistance
Extremely low coefficient of friction
Wide operating temperature range
Excellent electrical insulation
Non-stick and non-reactive surface
These properties make PTFE ideal for applications requiring chemical compatibility and reduced friction.
Typical Components Made with PTFE
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Seals & Gaskets
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Bearings & Wear Rings
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Valve Seats
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Insulators & Liners
Available PTFE Formulations
Roncelli offers access to a wide range of PTFE grades, including:
Virgin PTFE
Glass-filled PTFE
Carbon-filled PTFE
Bronze-filled PTFE
Industry Applications & Why Teflon® Works
Aerospace & Defense
Aerospace systems rely on materials that reduce friction and resist harsh chemicals.
PTFE is used in seals, bearings, and liners where low friction and chemical inertness improve system efficiency.
Space Systems
Space hardware often requires materials that function without lubrication.
PTFE supports low-friction applications and sealing components where smooth motion is critical.
Semiconductor Capital Equipment
Semiconductor processing demands materials with excellent chemical resistance.
PTFE is used in fluid handling, seals, and liners where contamination control and chemical compatibility are essential.
Medical & Life Sciences
Medical and life sciences applications often require materials with excellent chemical resistance and low friction.
PTFE is used in seals, liners, tubing components, and bearing surfaces where smooth motion, chemical inertness, and cleanliness are critical. Its non-reactive properties make it suitable for fluid handling and sensitive medical environments.
Downloads — Technical Resources
Download detailed PDF datasheets for each PTFE formulation:
DO NOT DELETE
Common Formulations
PTFE Unfilled – Chemical resistance with High Purity
PTFE 10% Glass Filled – Higher Strength and Stiffness
PTFE 25% Glass Filled – Low Deformation under Load, better Thermal Stability
PTFE 10% Graphite Filled – Improved Wear Resistance, Thermal Stability
PTFE 20% Graphite Filled – Strength and Stability, Wear Resistance
PTFE 40% Bronze Filled – High Strength and Creep Resistance
PTFE 15% Carbon Filled – Improved Strength, good Wear Resistance
PTFE 25% Carbon Filled – Better Thermal Stability, very good Wear Resistance
Fluorosint® 207 – Mica Filled Bearing Grade, very good Wear Resistance
Fluorosint® 500 – Mica Filled, very low Deformation, superior Thermal Stability
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