Teflon molding process mainly includes the following steps :
preforming : the polytetrafluoroethylene (PTFE) powder is evenly filled into the mold, and high pressure is applied at room temperature to make it preliminarily formed, this stage is called preforming
sintering : The preform is heated above the melting point so that the PTFE powder particles fuse and form a continuous polymer network structure, thereby achieving densification and strength enhancement
cooling : slow cooling from sintering temperature to room temperature to ensure stable pipe size and avoid deformation due to thermal stress
Advantages of Teflon (PTFE) Washer Customized：
High and low temperature: The Teflon washer can operate normally in the temperature range of -180°C to 260°C, which makes it maintain stable performance in both high and low temperatures
Corrosion resistance: Teflon washer is almost not attacked by any chemical substances, can resist a variety of organic solvents and acid and alkali substances, almost insoluble in any solvent
Low friction and self-lubrication: its coefficient of friction is very low, has good self-lubrication, can reduce friction and wear, extend the service life of the equipment
Excellent sealing performance: in the complex environment such as high temperature, low temperature, high vacuum, shock and vibration, Teflon washer can still maintain superior sealing performance
Mechanical toughness and resilience: under ultra-low temperature environment (-196°C), Teflon washer can still maintain 5% elongation, showing good mechanical toughness and resilience
Long life: The service life of Teflon washers is far beyond other gaskets, with the longest service life of plastic washers
Widely used: Teflon washer is widely used in chemical, pharmaceutical, petroleum, electric power and other fields, especially in the temperature and pressure change drastic sealing parts, such as pipes, valves, heat exchangers, pumps and other equipment flange joint
Product Use of Teflon (PTFE) Washer Customized：
Chemical industry: Teflon gaskets are widely used in the chemical industry, mainly for the manufacture of corrosion-resistant pipes, valves, pumps and containers. Especially when dealing with strong acids, alkalis and organic solvents, Teflon gaskets can withstand a variety of corrosive media to ensure the normal operation of the equipment
Aerospace: In the aerospace industry, Teflon gaskets are often used to make critical components such as hydraulic systems and fuel systems for aircraft and spacecraft. Its lightweight and high-strength properties make it an indispensable material in the aerospace industry
Electronic and electrical: Teflon gaskets are used as insulation materials and heat dissipation materials in the field of electronic and electrical appliances, and are widely used in circuit boards, connectors, cable insulation and sheath. Its excellent electrical insulation and high temperature resistance make it excellent in these applications
Automotive industry: In automotive manufacturing, Teflon gaskets can be used as fuel lines, brake lines, seals, bearings and insulation. Its high temperature and corrosion resistance characteristics make it have important applications in the automotive industry
Food processing: Because of their non-stickiness and high temperature resistance, Teflon gaskets are commonly used in the manufacture of food processing equipment and packaging materials. For example, food conveyor belts and baking molds are often made of Teflon materials to ensure hygienic and efficient food processing
Medical equipment: In the medical field, Teflon gaskets are used to make artificial joints, surgical instruments, medical tubes and other medical instruments. Its high biocompatibility and chemical resistance make it an important part of medical device manufacturing
Laboratory equipment: Teflon gaskets are also used in laboratory equipment such as chemical-resistant test vessels, reactors and other instrument components. Its excellent chemical stability and corrosion resistance make it excellent in these applications
Textile industry: In the textile industry, teflon treated fabrics have the function of waterproof and oil-proof, and are often used in outdoor equipment, work clothes and home decorations
Construction industry: Teflon membrane can be used to make waterproof coils and roof coatings, providing long-term effective waterproof protection
Packaging:
FAQ
1Q: How do I request a customized washer?
1A: Share your technical drawing/specifications (dimensions, tolerances, etc.), and we’ll manufacture the washer to meet your exact requirements.
2Q: What is the typical lead time for custom orders?
2A: Lead times vary based on complexity, but most orders ship within 2–4 weeks after design confirmation.
3Q: Can these washers handle high-pressure applications?
3A: Yes, they are designed to resist deformation under high pressure, making them ideal for molding/pressing operations.
4Q: Are samples available for testing?
4A: Yes, we provide prototype samples (subject to MOQ) to ensure compatibility with your equipment before bulk production.
5Q: Are these parts compliant with industry standards?
5A: Yes – ISO 9001 and RoHS/REACH.
