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Home / News / Industry News / Will the 19MM new design ptfe thread seal tape deform, age or lose its sealing effect under high temperature?

Will the 19MM new design ptfe thread seal tape deform, age or lose its sealing effect under high temperature?

19MM new design ptfe thread seal tape usually performs very well in high temperature environments. PTFE (polytetrafluoroethylene) is a fluoroplastic with good high temperature resistance. However, whether it will deform, age or lose the sealing effect depends on its design and usage conditions. The following are some factors that affect the performance of PTFE sealing tape at high temperatures:

One of the main advantages of PTFE sealing tape is that it can maintain good stability under high temperature conditions. Generally, the maximum operating temperature range that PTFE materials can withstand is -200°C to +260°C, which makes it an ideal sealing material for high temperature environments.
In 19MM new design ptfe thread seal tape, if the design does not reduce the quality or properties of its PTFE material, its high temperature resistance is still very strong and can be used for pipeline connections of high temperature media such as high temperature steam, hot water, oil and gas.

Although PTFE is resistant to high temperatures, if the temperature exceeds its maximum temperature resistance limit (usually around 260°C), the sealing tape may begin to soften and lose its original sealing effect. Especially at very high temperatures, PTFE may undergo thermal expansion, resulting in the sealing tape being unable to effectively fit the thread surface, causing sealing failure.
When used in high temperature environments for a long time, especially when the temperature is higher than the upper temperature limit of PTFE, the sealing tape will gradually soften and age, causing the material structure to become loose or deformed, which in turn affects the sealing effect.

PTFE does not age or degrade as quickly as rubber or some plastics at normal high temperatures. However, if exposed to extreme temperatures or oxidative environments for a long time, some physical properties of PTFE (such as strength and elasticity) may decrease. High temperatures and ultraviolet (UV) effects may cause slight changes in the molecular structure of PTFE, affecting its sealing ability, but usually this effect takes a very long time to show up.
For some newly designed PTFE sealing tapes, manufacturers may add anti-aging additives or perform additional treatments to their formulas to enhance their stability and durability in high temperature environments and delay the aging process.

19MM new design ptfe thread seal tapes

PTFE sealing tapes usually have good elasticity and compressibility, and can maintain good sealing effects at high temperatures. This is because the molecular structure of PTFE is relatively stable and is not prone to large-scale chemical reactions or physical deformations even at higher temperatures.
Within the temperature range, the sealing performance of PTFE can effectively adapt to different threaded connections and ensure sealing, especially in high-temperature pipeline systems such as steam pipelines, petrochemical industry, and natural gas transportation, PTFE sealing tapes are often widely used.

19MM new design ptfe thread seal tape may improve high temperature resistance by optimizing the purity of PTFE, enhancing the crystallinity of the material, or introducing new additives. For example, some manufacturers may add reinforcing fillers (such as glass fiber or ceramic particles) to PTFE to improve the strength and heat resistance of the sealing tape and extend its service life.
19MM new design ptfe thread seal tape may also use coatings or composite materials to make the sealing tape more stable at high temperatures. For example, adding UV-resistant and anti-oxidation coatings can effectively resist the negative effects of high temperature environments on the sealing tape.

Although PTFE has good high temperature resistance, it should be avoided to exceed its maximum temperature resistance limit during use to prevent the sealing tape from softening, deforming or aging, resulting in a decrease in sealing effect.
When used for a long time in a high temperature environment, it is recommended to regularly check the status of the PTFE thread sealing tape, especially under high pressure, strong corrosion or extreme temperature conditions. The sealing tape may need to be replaced due to thermal fatigue, wear or aging.

19MM new design ptfe thread seal tape usually does not deform or lose its sealing effect in high temperature environment, as long as the use temperature does not exceed its designed temperature range (generally not more than 260°C). PTFE has excellent heat resistance and stability and is suitable for use at high temperatures. However, if the temperature is too high or it is exposed to high temperature for a long time, the sealing tape may gradually soften and age, eventually affecting its sealing effect. Therefore, correct use and regular inspection are the key to ensure its long-term stable operation.