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White pipe thread sealant in 1.1 lb tube

Krytox

Krytox TS4 Pipe Thread Sealant 1.1 lb Tube White

SKU CH-XQC2-DAT6Z

White PTFE thread sealant for metal and plastic pipe, rated from -65 °F to 300 °F and 400 psi gas pressure

  • Withstands extreme cold down to -65 °F
  • Handles heat up to 300 °F continuous service
  • Seals gas lines at 400 psi pressure rating
  • PTFE base resists acetone, fuels, oxygen, steam
  • Meets ASNI/ASME B20.1 1983 thread-sealing guideline

Pipe Thread Sealant for Metal and Plastic

Krytox TS4 is a PTFE-based pipe thread sealant supplied in a 1.1 lb tube for general-purpose sealing on metal and plastic fittings. It is formulated for systems carrying acetone, alcohol, butane, ethanol, fuels, gases, natural gas, oxygen, propane, steam and water. The white paste meets the ASNI/ASME Guideline B. 20.1 -1983 standard for thread sealing applications.

Wide Temperature Range and Pressure Rating

The sealant remains functional from -65 degrees F up to 300 degrees F, covering cryogenic to elevated-temperature service. It is rated for gaseous media at pressures up to 400 psi, providing reliable sealing across a broad envelope of operating conditions. The PTFE chemical base resists attack from the listed fluids without hardening or cracking in normal use.

Consistent Performance Under Sustained Exposure

Under continuous exposure to the rated temperature and pressure limits the material maintains its sealing integrity without the degradation seen in short-term tests. The PTFE base ensures the thread joint stays sealed during prolonged contact with aggressive fluids such as oxygen, fuels and steam. It is not intended for buyers who require a sealant approved for potable-water systems or for those needing a non-PTFE formulation.

Highlights

  • Withstands extreme cold down to -65 °F
  • Handles heat up to 300 °F continuous service
  • Seals gas lines at 400 psi pressure rating
  • PTFE base resists acetone, fuels, oxygen, steam
  • Meets ASNI/ASME B20.1 1983 thread-sealing guideline

Specifications

BrandKRYTOX

Questions about this item

How do I apply the Krytox TS4 thread sealant to metal or plastic pipe threads, and what is the common mistake to avoid?

Apply the white PTFE paste directly to clean male threads, covering the full thread engagement area. The common mistake is using too much sealant, which can extrude into the fluid path and contaminate systems handling oxygen, fuels, or steam.

Will the Krytox TS4 sealant need replacement or reapplication after a period of service?

The PTFE-based compound is chemically inert and does not cure, harden, or degrade across its -65 °F to 300 °F range. It remains effective for the life of the joint unless the connection is disassembled, at which point old sealant must be removed and fresh material applied.

What is the first operating limit reached when this sealed joint is under sustained high-pressure gas service?

The maximum operating pressure for gases is 400 psi. This pressure ceiling will be reached before the 300 °F temperature limit in typical compressed-gas or natural-gas installations.

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