Krytox TS4 Thread Sealant – TMC Industries, Inc.

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Krytox TS4 Thread Sealant

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Traditionally, PTFE (Teflon) tape is used to seal valves, actuators, pipe fittings and fasteners. Now Krytox TS4 PFPE sealant provides the highest securing performance for water, air, steam, natural gas, reactive gases, and liquids without the drawbacks of tapes.

PTFE tapes can result in costly thread damage during assembly due to galling and seizure. Krytox TS4 provides for low breakaway torque for easy-to-break connections.  Additionally, TS4 is a cost-effective solution when compared to like chemistries and products, such as Halocarbon Grease, Fluorolube Grease, Lox-8 Paste or PTFE tape as only a minor amount is needed per application.



  • Perfect for threaded connections for valves, actuators, pipe fittings and fasteners
  • Safe - Chemically inert, non-flammable grease that will not react with metals, seals, or the process environment
  • Insoluble in nearly all gases and solvents; Krytox TS4 will not be stripped away during processing
  • Unlike PTFE tape, TS4 can be re-applied over existing thread sealant
  • Adheres to threads and will not shred or tear on assembly or dis-assembly
  • Will not plug or restrict piping, valves, or instruments like tape solids
  • Adds sealing power for water, air, steam, natural gas and reactive gases and liquids
  • No VOC content or hydrocarbons
  • Operating temperature range of -54 to 149 ºC (-65 to 300 ºF)
  • Approved to use by The Chlorine Institute (Pamphlet 164)
  • Tested leak free under helium at 400 psi for 7 days

Shipping Policy

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

Shipping Time -- Most orders received before 3:00PM Central Time will ship the same day, provided the product ordered is in stock. Most orders received after 3:00 PM will ship the next business day. Orders are not processed or shipped on Saturday, Sunday or major US holidays.

We cannot guarantee when an order will arrive. Consider any shipping or transit time offered to you by the carrier as an estimate. We encourage you to order in a timely fashion to avoid delays caused by shipping or product availability.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

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