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Krytox™ TS4 Sealant Grease

Krytox™ TS4 PFPE sealant provides the highest securing performance for water, air, steam, natural gas, reactive gases and liquids without the drawbacks of PTFE tapes or other comparable products.




Product Overview

Krytox™ TS4 PFPE sealant is a fully fluorinated grease designed for threaded connections on valves, actuators, pipe fittings, and fasteners. 

Product Specifications

Operating temperature range of –54–149 ºC (–65–300 ºF).
Primary Chemistry: PFPE

Features & Benefits

Unlike PTFE tape, which should be removed
before re-application, Krytox™ TS4 can be
re-applied over existing Krytox™ thread sealant.
• Lubricates threads, preventing costly thread damage from galling and seizing during assembly. Allows low breakaway
torque for easy-to-break connections.
• Clings to threads and will not shred or tear on assembly/disassembly.
• Cannot plug or restrict critical piping, valves, or instruments like tape solids.
• Krytox™ TS4 is non-reactive, non-toxic, nonflammable, non-corrosive and compatible with most seal, O-ring, and valve polymers.
• No VOC content or hydrocarbon in the product; safe for oxygen use with no auto-ignition temperatures.
• Cost-effective—only a small amount of sealant needed per application.
• Fast and easy to apply, even while wearing protective gloves.
• Tested leak free under helium at 400 psi for 7 days.*


Clean all pipe and fitting threads with a non-chlorinated solvent to remove cutting/protective oil and chase threads with stiff wire brush to remove burrs, debris, and old sealant (PTFE tape, pipe dope, anaerobic resin, etc.).
• Check pipe and fittings against ASNI/ASME guideline B.20.1-1983 to meet specifications for proper fit and engagement.
• Construct piping systems following all applicable ANSI/ASME codes.
• Apply Krytox™ TS4 to fill the male threads evenly, up to the recommended engagement length from the ANSI/ASME guideline. DO NOT OVERTIGHTEN.

Related Products

Krytox™ Greases

Krytox™ greases are nontoxic lubricants that maintain their lubricity and viscosity properties to reduce maintenance costs associated with re-lubrication, component failure, and downtime in demanding applications. They are created by thickening synthetic perfluoropolyether-based oil (PFPE) with polytetrafluoroethylene (PTFE) powder.

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