Overview
The PTFE washer is a specialized industrial fastener designed to provide superior chemical resistance, low friction, and excellent electrical insulation in various assembly applications. Manufactured from polytetrafluoroethylene (PTFE), this washer offers outstanding performance in environments exposed to corrosive chemicals, extreme temperatures, and high mechanical stress. The design of the PTFE washer ensures a precise fit between mating surfaces, reducing wear and preventing leakage or loosening in bolted joints. Its non-reactive nature makes it ideal for use in chemical processing, food and beverage, pharmaceutical, and electrical industries where contamination and corrosion must be minimized. The PTFE washer’s smooth surface and inherent lubricity also contribute to reduced torque requirements during installation, enhancing the reliability and longevity of the fastening system.
Produced through advanced molding and machining processes, the PTFE washer maintains consistent dimensional accuracy and mechanical integrity, ensuring dependable performance in demanding industrial settings. The material’s resistance to UV radiation, moisture, and a wide range of solvents further extends the service life of the PTFE washer, making it a cost-effective solution for maintenance and replacement cycles. Its lightweight yet durable construction allows for easy handling and installation without compromising strength or stability. Applications of the PTFE washer include sealing, spacing, and load distribution in assemblies subjected to harsh chemical exposure or electrical insulation needs. By incorporating the PTFE washer, industries benefit from enhanced operational efficiency, reduced downtime, and improved safety standards in critical fastening applications.
| Product Type | PTFE Washer |
| Head Style | Flat Circular Washer |
| Manufacturing Process | Die-Cutting or Machining |
| Thread Type | Non-Threaded |
| Common Materials | Polytetrafluoroethylene (PTFE) |
| Available Sizes | Standard and Custom Inner and Outer Diameters, Thicknesses from 0.5mm to 10mm |
| Strength Features | Chemical Resistance, High Temperature Tolerance, Low Friction |
| Typical Applications | Sealing, Insulation, Electrical Isolation, Corrosion Resistance |
| Surface Finishes | Smooth, Non-Adherent Surface |
| Standards | ASTM D4894, ISO 12086 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Resistant to most acids, bases, and solvents, ensuring long service life in harsh chemical environments.
Provides smooth movement and reduces wear between mating surfaces, enhancing assembly performance.
Operates effectively in temperatures ranging from -200°C to +260°C without degradation.
Offers excellent electrical insulation properties for sensitive electronic applications.
Prevents galvanic corrosion between dissimilar metals in fastened joints.
Combines low density with high mechanical strength for reliable performance.
| Product Type | Non-metallic Washer |
| Material | PTFE (Virgin and Filled) |
| Diameter Range | M3 to M48 |
| Thickness Range | 0.5 to 10 mm |
| Standards | ASTM D1710, ISO 1629 |
| Surface Finish | Smooth, Non-stick |
| Diameter (mm) | Thickness (mm) |
|---|---|
| M3 | 0.5, 1.0 |
| M6 | 1.0, 1.5 |
| M12 | 2.0, 3.0 |
| M24 | 3.0, 5.0 |
| M48 | 5.0, 10.0 |
