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Product Description

Product Introduction 

Forwa PTFE Sheet is a high-performance engineering plastic sheet made from polytetrafluoroethylene (PTFE) resin through molding and sintering processes. Known as the "King of Plastics," PTFE offers outstanding chemical stability, high-temperature resistance, and an extremely low friction coefficient. It is an indispensable high-performance material in modern industry.

Product Features

Physical Properties

  • Density: 2.1–2.3 g/cm³ (typical value 2.2 g/cm³)
  • Melting Point: 327°C
  • Operating Temperature Range: -200°C to +260°C
  • Friction Coefficient: 0.04–0.15 (the lowest among all plastics)
  • Surface Tension: 18.5 dyn/cm (almost not wetted by any liquid)

Chemical Properties

  • Chemical Inertness: Resists almost all strong acids, strong alkalis, strong oxidizers, and organic solvents
  • Weather Resistance: Unaffected by UV rays or ozone; maintains stable performance over long-term use
  • Non-Stick Property: Extremely low surface energy; almost nothing adheres to it

Electrical Properties

  • Insulation Performance: Volume resistivity > 10¹⁸ Ω·cm
  • Dielectric Constant: 2.1–2.2 (at 10⁶ Hz)
  • Dielectric Loss: 0.0001–0.0005
  • Problems It Solves

Industrial Application Issues

  • Corrosion Problems: Protects equipment from erosion by strong acids, strong alkalis, and other corrosive media
  • Adhesion Problems: Prevents material sticking and clogging during processing and conveying
  • Friction Problems: Reduces friction and wear on mechanical moving parts
  • Sealing Problems: Provides reliable sealing solutions to prevent leakage

Technical Challenges

  • High-Temperature Environments: Maintains stable performance under high temperatures
  • Cleanliness Requirements: Meets hygiene standards for food and pharmaceutical industries
  • Insulation Needs: Delivers excellent electrical insulation performance

Key Advantages

Performance Advantages

  • Superior Chemical Resistance: Almost immune to corrosion by any chemicals
  • Wide Temperature Range: Maintains stable performance from ultra-low to high temperatures
  • Ultra-Low Friction Coefficient: Self-lubricating, effectively reducing energy consumption
  • Excellent Electrical Insulation: Stable performance at high frequencies
  • Non-Stick Surface: Easy to clean and prevents material buildup

Economic Advantages

  • Long Service Life: Far exceeds that of ordinary materials
  • Low Maintenance: Reduces equipment maintenance frequency and costs
  • Improved Efficiency: Enhances process flow and boosts production efficiency
  • Safety and Reliability: Lowers accident risks and improves production safety

Application Scenarios

Chemical Industry

  • Reactor Linings: Inner linings for reaction kettles handling strong acids and alkalis
  • Piping Systems: Linings and seals for chemical pipelines, valves, and pumps
  • Anti-Corrosion Equipment: Corrosion protection for storage tanks, towers, and heat exchangers

Machinery Manufacturing

  • Bearings and Guide Rails: Low-friction bearings and sliding guide rails
  • Gears and Cams: Silent gears and precision transmission components

Electronics & Electrical

  • Insulation Materials: High-frequency cable insulation and circuit board substrates
  • Connectors: High-temperature connectors and sockets
  • Semiconductor Equipment: Components for wafer processing equipment

Food & Pharmaceutical

  • Food Processing Equipment: Non-stick coatings and conveyor belts
  • Pharmaceutical Equipment: Reactor linings and piping systems
  • Medical Devices: Catheters and implantable components

Aerospace

  • Sealing Systems: Seals for aircraft hydraulic systems
  • Insulation Components: Insulation for aerospace electronic equipment
  • Wear-Resistant Parts: Precision wear-resistant components

Technical Data Reference

Physical Properties

Property

Value Range

Test Standard

Density

2.1–2.3 g/cm³

ASTM D792

Tensile Strength

20–35 MPa

ASTM D638

Elongation at Break

200–400%

ASTM D638

Compressive Strength

10–15 MPa

ASTM D695

Hardness (Shore D)

50–65

ASTM D2240

Thermal Properties

Property

Value

Test Standard

Melting Point

327°C

ASTM D3418

Continuous Use Temperature

-200°C to +260°C

-

Heat Deflection Temperature

55°C (at 1.8 MPa)

ASTM D648

Thermal Conductivity

0.25 W/(m·K)

ASTM C177

Electrical Properties

Property

Value

Test Standard

Volume Resistivity

>10¹⁸ Ω·cm

ASTM D257

Surface Resistivity

>10¹⁷ Ω

ASTM D257

Dielectric Constant (10⁶Hz)

2.1–2.2

ASTM D150

Dielectric Strength

60 kV/mm

ASTM D149

Friction Properties

Property

Value

Static Friction Coefficient

0.04–0.10

Dynamic Friction Coefficient

0.04–0.15

Wear Rate

10⁻⁶ – 10⁻⁷ mm³/N·m