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Stainless steel pipe threads are prone to leaking as well as seizing or gulling of the threads. After many years of experience and pressure testing systems up to 7700 PSI I have found this works best.

Apply UNASCO MX-68 Silver Stainless Steel Pipe Thread Sealing Tape to the threads (4-5) wraps is sufficient for smaller pipes. Generally found that covering all the threads 2 layers deep works well.

Step 2

On top of the Teflon apply a layer of SWAK thread sealing compound. Be sure to cover all around the pipe from the starting thread to the half way point of the entire length of thread.

Step 3

Tighten away

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Q: How do you seal stainless steel pipe thread?
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