Expanded PTFE thread sealant tape is a high-performance sealing material engineered for demanding industrial piping, hydraulic, and chemical processing systems. Unlike conventional PTFE tape, this product is expanded bidirectionally to create a soft, compressible, and highly conformable structure that fills micro-irregularities on flange and thread surfaces. As a dedicated PTFE joint sealant tape supplier, we manufacture the tape from 100% virgin PTFE resin under strict quality controls to ensure consistent thickness, density, and tensile strength. For aggressive media and high-temperature pipelines, our ePTFE joint sealant tape for industrial pipe provides a reliable, leak-free seal without the need for messy pastes or cord packing. Hydraulic assemblies benefit from the tape’s resistance to vibration and pressure spikes, which is why maintenance crews often specify the ePTFE seal tape for hydraulic joint for pumps, valves, and actuators. When service conditions require maximum creep resistance and dimensional stability, the high density ePTFE sealant tape grade delivers a denser matrix that withstands higher mechanical loads and severe thermal cycling.
Expanded PTFE Thread Sealant Tape is manufactured by expanding PTFE resin in two directions, producing a micro-porous structure that is both strong and compressible. The material is chemically inert, non-aging, and suitable for contact with potable water, food-grade media, and aggressive industrial fluids. It does not harden or become brittle over time, and it can be removed cleanly from flanges without leaving residue. Key product parameters and performance characteristics are listed below.
| Property | Standard Grade | High-Density Grade |
|---|---|---|
| Thickness | 0.5 mm – 5.0 mm | 1.0 mm – 3.0 mm |
| Width | 3 mm – 100 mm | 3 mm – 50 mm |
| Length per roll | 5 m – 50 m | 5 m – 25 m |
| Density | 0.7 g/cm³ | 1.2 – 1.5 g/cm³ |
| Tensile strength (longitudinal) | ≥ 12 MPa | ≥ 18 MPa |
| Elongation at break | ≥ 50% | ≥ 40% |
| Compressibility | ≥ 40% | ≥ 30% |
| Recovery | ≥ 12% | ≥ 10% |
| Creep relaxation | ≤ 40% | ≤ 30% |
| Gas permeability | ≤ 0.1 cm³/min | ≤ 0.05 cm³/min |
