PTFE ASTM D1710 CNC Machining high-quality PTFE gaskets, seals, washers and insulators
1. Description:
PTFE gasket is a sealing material with excellent chemical resistance and high temperature stability. It performs well in a wide variety of corrosive media, can withstand a wide temperature range, has a very low coefficient of friction and excellent electrical insulation properties. This makes PTFE gaskets ideal for sealing applications in many industrial fields.
| character | PTFE | FEP | PFA | PVDF |
| specific gracity | 2.13-2.22 | 2.12-2.17 | 2.12-2.17 | 1.76-1.78 |
| melting point(℃) | 327 | 270 | 302-310 | 173-175 |
| maximum continous user temperature(℃) | 260 | 200 | 260 | 150 |
| tensile strength(mpa) | 20-45 | 19-22 | 27-35 | 39-59 |
| coefficient of elongation(%) | 200-450 | 250-330 | 280-400 | 300-450 |
| dielectric constant 10^3HZ 10^6HZ |
2.1 2.1 |
2.1 2.1 |
2.1 2.1 |
7.72 6.43 |
| volume resistance(Ω-CM) | >10^18 | >10^18 | >10^18 | >10^14 |
| dielectric breakdown strength v/mil |
480 | 500-600 | 500 | 260 |
PTFE gaskets are known for their excellent chemical resistance and high temperature stability. Its chemical resistance makes it ideal for a wide variety of corrosive media. PTFE has very low chemical reactivity and is resistant to many corrosive media such as acids, alkalis, solvents and oxides. This makes PTFE gaskets widely used in fluid systems dealing with corrosive liquids or gases.
On the other hand, PTFE gaskets have excellent high temperature stability, allowing them to maintain consistent performance under extreme temperature conditions. PTFE can work over a wide temperature range, typically from -200°C to +260°C without being affected. This makes PTFE gaskets suitable for high temperature processes and applications such as petrochemical, chemical processing and high temperature fluid transfer systems.
Compared with other materials, PTFE gaskets have significant differentiating advantages in terms of chemical corrosion resistance and high temperature stability. Its non-stick properties reduce friction between the media and the gasket, reducing wear and the risk of leakage. PTFE gaskets also have excellent electrical insulation properties and withstand voltage capabilities, making them widely used in the electronics and electrical fields.
Advantages:
PTFE gaskets have excellent non-stick properties and low coefficient of friction. This means it reduces friction and wear in sealing applications, avoiding sticking and seizure problems. Non-adhesive properties make PTFE gaskets easier to clean when dealing with viscous media, eliminating the need for frequent maintenance and replacement. This characteristic makes PTFE gaskets the first choice for applications requiring high sealing and long life.
PTFE gaskets have excellent electrical insulation properties and withstand voltage capabilities. It is widely used in electronics and electrical fields to stop current leakage and insulate circuits. PTFE gaskets do not conduct electricity and have good voltage resistance, which can prevent electric shocks and arcs.
PTFE gaskets also have good dimensional stability and wear resistance. Under different temperature and humidity conditions, PTFE gaskets have little dimensional change and are not easy to expand or contract. At the same time, the PTFE gasket has high wear resistance, can resist friction and wear, and prolong the gasket
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