Expanded PTFE Sheet

100% ePTFE Gasket Sheets for CNC & Die-Cutting Fabrication

Expanded ePTFE Flexible PTFE Sheet China Factory

Expanded eptfe gasket material 1mm~8mm

Expanded PTFE Gasket Material ePTFE 0.5mm~ 10mm Thickness

Direct Factory Expanded PTFE Sheet Manufacturer (100% Virgin ePTFE Gasket Sheets)

As a premier expanded ptfe sheet manufacturer, we produce high-performance expanded ptfe sheet materials engineered from 100% virgin PTFE resins using advanced expansion technology. The unique processing forms a highly uniform, fine multidirectional micro-fibrous network structure that combines low density, outstanding flexibility, and exceptional chemical inertness. Designed specifically to seal damaged, uneven, or fragile flange surfaces, our ePTFE gasket sheets prevent creep and cold flow under high compression loads.

100% Virgin Resins Multidirectional Fibrous Network Seals Uneven & Damaged Flanges Max Width 1800mm x Length 5400mm

Main Technical Indicators

Tested performance metrics for high-reliability ePTFE gasket material.

Test Item	Unit	Target Value
Compressibility	%	45 ± 5
Rebound Rate (Recovery)	%	≥ 10.0
Sealing Leakage Rate	cm³/s	≤ 1.0 × 10⁻³
Density	g/cm³	0.7 - 0.9

Standard Product Specifications

Available stock dimensions and thickness matrix (Width × Length × Thickness).

Standard Dimensions (mm):

1500 × 1500 mm
1500 × 4500 mm
1800 × 1800 mm
1800 × 5400 mm

Thickness Options (mm):

0.5mm 1.0mm 2.0mm 3.0mm 4.0mm 5.0mm 6.0mm 8.0mm 10.0mm

Key Performance Advantages of Expanded PTFE Sheet

Multidirectional Fiber Matrix

Equal tensile strength in both longitudinal and transverse directions minimizes cold flow and stress relaxation under high bolt loads.

Conforms to Irregular Surfaces

Extremely soft and compressible matrix readily seals pitted, scratched, uneven, or warped flange surfaces without heavy bolt torque.

Universal Chemical Resistance

Resists practically all chemicals across pH 0–14, excluding molten alkali metals and elemental fluorine at high temperatures.

High Compressibility & Sealing

45±5% compressibility combined with extremely low gas permeability (≤1.0×10⁻³ cm³/s) ensures zero-leakage fluid control.

Primary Industrial Applications

Trusted across demanding processing industries requiring pure and flexible PTFE gaskets.

Chemical Vessels & Reactors

Seals reactor manholes, glass-lined columns, and acid-resistant tank flanges where torque is limited.

Heat Exchangers & Pumps

Gasket seals for complex heat exchanger tube sheets, centrifugal pump housings, and control valves.

Marine & Offshore Piping

Corrosion-proof sealing for marine seawater systems, ballast lines, and fuel transfer manifolds.

High-Purity Medical & Pharma

100% pure virgin PTFE resin ensures zero contamination for ultra-clean pharmaceutical processing lines.

Request Wholesale Factory Pricing from Expanded PTFE Sheet Manufacturer

Looking for standard ePTFE sheet sizes or custom CNC die-cut gaskets? Contact our engineering sales team for immediate technical consultation and factory pricing.

Contact Factory Sales →

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