Reinforced Polytetrafluoroethylene

Reinforced Polytetrafluoroethylene (RPTFE) Semi-Finished Products

Enhanced PTFE for Industrial Performance

Reinforced Polytetrafluoroethylene (RPTFE) is a high-performance variant of virgin PTFE (Polytetrafluoroethylene), commonly referred to as Teflon. While PTFE is well-known for its exceptional chemical resistance, thermal stability, and non-stick properties, it suffers from drawbacks such as cold flow (creep) and limited mechanical strength, especially under pressure or high temperatures.

To address these weaknesses, RPTFE is formulated by adding fillers such as glass fiber, carbon, graphite, barium sulfate, alumina, or other inorganic materials into virgin PTFE. The result is a composite material that retains PTFE's chemical inertness while significantly improving:

• Dimensional stability under stress
• Creep resistance
• Tensile and compressive strength
• Wear and abrasion resistance
• Service life under thermal cycling

We provide semi-finished RPTFE materials in sheet, rod, tube, film, and custom blank formats, suitable for machining into valve seats, gaskets, seals, bushings, and other industrial components.

	Filler Type	Benefits	Common Uses
	Glass Fiber	High strength, low creep	Valve seats, bushings, seals
	Carbon/Graphite	Low friction, thermal conductivity	Dynamic seals, steam valves
	Barium Sulfate	High compressibility, chemical resistance	Gaskets for chemical plants
	Alumina	Universal resistance, mechanical strength	High-temp, corrosive applications