Polytetrafluoroethylene (PTFE) is a high-performance material widely recognized for its exceptional chemical resistance, low friction coefficient, and excellent electrical insulation. Due to these properties, PTFE sheets are extensively used across industries for gaskets, seals, linings, and insulation applications. At YILONG, we supply both molded and Skived PTFE Sheets, catering to diverse customer needs with consistent quality and performance.
Molded PTFE Sheets are produced by compressing PTFE resin powder under high temperature and pressure to form solid sheets. This method results in a uniform structure with high density and a smooth surface finish. Molded sheets are known for:
Superior mechanical strength: The compression process ensures better molecular alignment, which enhances tensile strength and dimensional stability.
High purity: During molding, impurities are effectively filtered out, resulting in a cleaner product ideal for sensitive applications.
Excellent performance: Molded PTFE Sheets exhibit excellent resistance to chemicals, high temperatures, and electrical conductivity.
However, Molded PTFE Sheets may have limitations in size availability. Due to the nature of the molding equipment, producing very large sheets can be challenging without compromising quality.
Skived PTFE Sheets are produced by slicing thin layers from a larger block of compressed PTFE resin using high-precision skiving machines. This process allows for greater flexibility in terms of sheet size and thickness control. Skived PTFE Sheets offer:
Precise thickness control: Ideal for applications that demand tailored dimensions or conformable materials.
Greater width and flexibility: Skived PTFE Sheets can be manufactured in wider dimensions, making them suitable for large-surface applications.
Smooth surface: The slicing technique ensures uniformity, minimizing friction in dynamic applications like bearings or sliding parts.
On the downside, Skived PTFE Sheets generally have lower tensile strength compared to molded sheets. The slicing process can disturb the internal structure of the PTFE, making them less suitable for high-load or high-stress environments. There is also a small risk of surface imperfections, such as micro-tears or edge inconsistencies.
At YILONG, we understand that selecting the right type of PTFE sheet depends on the application's mechanical, chemical, and dimensional requirements:
Choose Molded PTFE Sheets when your application demands high mechanical strength, thermal stability, and chemical resistance, such as in high-pressure gaskets or structural insulation.
Opt for Skived PTFE Sheets when flexibility, precision thickness, and surface smoothness are key, such as in intricate seals, linings, or electrical insulators.
YILONG provides a full range of customizable PTFE sheet solutions, supporting clients in industries like chemical processing, electronics, mechanical engineering, and more. Whether you need bulk standard sizes or tailored dimensions, our production capabilities and quality assurance ensure consistent results.
In the vast world of materials engineering, few substances hold as much significance as resins. Among these, phenolic and Epoxy Resins stand out due to their versatile applications and remarkable properties. These two types of resins are the backbone of numerous industries, from construction and automotive to electronics and aerospace, where they play crucial roles in enhancing product performance and durability.
Polytetrafluoroethylene (PTFE) is a high-performance material widely recognized for its exceptional chemical resistance, low friction coefficient, and excellent electrical insulation. Due to these properties, PTFE sheets are extensively used across industries for gaskets, seals, linings, and insulation applications. At YILONG, we supply both molded and Skived PTFE Sheets, catering to diverse customer needs with consistent quality and performance.
Mica is a naturallycurring from the silicate family, well-regarded for itsunique properties including thermal stability, dielectric strength, and its ability to be split into thin, flexible sheets. Due to these characteristics, mica is widely utilized across many industries—from electronics and automotive to construction and energy. At YILONG, we specialize in providing mica-based insulation products for high-performance applications where reliability under heat and voltage stress is crucial.
Selecting the right Electrical Insulation material has a direct impact on system performance, safety, and service life. Understanding the properties and applications of various insulation materials helps engineers and manufacturers make informed decisions tailored to their specific needs.
Insulation sheets are multifunctional materials widely used across industries due to their excellent thermal, electrical, and acoustic insulation properties. With low thermal conductivity, high dielectric strength, and reliable sound absorption, they offer dependable solutions for energy efficiency, system safety, and noise control.
Yilong insulation materials (subsidiary of Shandong Sida Industry Co.,Ltd.) has built a strong reputation since its inception in 1966 as a state-owned factory in Zhucheng, Shandong. Through significant transformations—including a pioneering shift to a joint-stock cooperative system—it evolved into a modern corporation with a registered capital of ¥61.56 million, over 1,300 employees, and total assets around ¥320 million .
Today, thermosetting resins are typically produced in smaller volumes than thermoplastic resins and often play a supporting role in the materials industry. However, did you know that the first synthetic resin ever invented was not a thermoplastic, but a thermosetting resin called bakelite?
FR-4, the widely used epoxy glass cloth laminate, is well known for its excellent mechanical strength, flame resistance, and electrical insulation. While most people associate FR-4 with the typical green color seen in printed circuit boards (PCBs), FR-4 is actually available in several different colors, including yellow, white, black, and natural (light green or beige). But what do these colors really mean?
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