In the world of industrial plumbing and fluid dynamics, the 19mm PTFE Thread Seal Tape (commonly known as Teflon tape) represents the gold standard for high-diameter fittings. While standard 12mm tapes suffice for domestic applications, the 19mm variant is specifically engineered for professional-grade 3/4" to 2" pipes, providing the necessary surface area coverage to ensure a leak-proof, chemically resistant seal.
Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has one of the lowest coefficients of friction of any solid. This makes it ideal for sealing pipe threads, as it allows the threads to be seated more deeply and prevents them from seizing. Our 19mm tapes are manufactured using 100% virgin PTFE, ensuring they remain flexible and stable in temperatures ranging from -190°C to +260°C.
Inside UNIK Industrial: Precision Manufacturing Processes
Fujian UNIK is located in Nan’an, the "Hometown of Water Heating" in China. This industrial cluster provides unparalleled access to raw materials, specialized machinery, and a highly skilled workforce, allowing us to maintain competitive pricing without compromising quality.
Our 19mm tape production lines utilize multi-stage calendering. This ensures uniform thickness and width across the entire length of the spool, a critical factor for automated pipe-wrapping machines used in large-scale assembly.
We serve global brands by providing custom spool lengths (up to 50m), custom colors (Yellow for Gas, Pink for Plumbers, Green for Oxygen), and bespoke packaging solutions that meet international retail standards.
Our products carry CE certification, ensuring they meet the stringent health, safety, and environmental protection standards required for the European Economic Area and beyond.
The global PTFE thread seal tape market is shifting towards high-performance niche applications. As infrastructure projects become more complex, the demand for "Gas-Specific" and "Oxygen-Safe" tapes has surged. Macro-environmental regulations are also pushing manufacturers toward PFAS-compliant processing, an area where FUJIAN UNIK is actively investing in R&D.
Furthermore, 19mm wide tapes are increasingly favored in the Hydrogen Energy sector and Solar Thermal systems, where larger fittings and high vibration resistance are paramount. Standard 12mm tape often requires excessive overlaps, leading to uneven pressure distribution; the 19mm tape solves this by providing a broad, uniform seal.
Specialized high-density 19mm tape for flammable gas lines, ensuring zero-permeability and resistance to aggressive chemical solvents.
Large-format sealing for chilled water systems and industrial boilers where thermal expansion and contraction are constant challenges.
FDA-compliant virgin PTFE for clean water systems, ensuring no leaching of contaminants into the potable water supply.
Located in Nan’an city, the heart of China's plumbing industry, FUJIAN UNIK INDUSTRIAL CO., LTD operates dedicated factories for both high-end faucets and PTFE thread seal tapes. We are pioneers in innovation, customization, and global sales, leveraging advanced domestic and international technology.
Our core product portfolio includes:









A: 19mm tape is designed for larger pipe diameters (industrial scale). It provides a wider sealing surface, requiring fewer wraps and ensuring better coverage on coarse threads, which reduces the risk of helical leaks.
A: Yes. We can manufacture densities ranging from 0.2g/cm³ for light plumbing to 1.2g/cm³ for heavy-duty gas and hydraulic applications. High-density tape is more resistant to "stringing" and offers a superior seal.
A: For standard 19mm specifications, our lead time is typically 15-25 days. For custom OEM orders involving branded spools and packaging, it ranges from 30-45 days depending on the volume.
A: Absolutely. Our tape is made from 100% virgin PTFE, which is chemically inert and non-toxic, making it suitable for all potable water systems.
We provide innovative solutions for sustainable progress. Our professional team works to increase productivity and cost-effectiveness on the market.
Get a Custom Quote Now