Best Plumber’s Tape – PTFE and Thread Seal Options
Oatey white PTFE tape for water lines and RectorSeal yellow tape for gas connections are the standard choices — every home should have both.
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PTFE thread seal tape (also called Teflon tape or plumber’s tape) is one of the most used consumables in residential plumbing. Wrapped around threaded pipe joints before assembly, it lubricates the threads for easier tightening and fills microscopic gaps to prevent leaks. It costs almost nothing and prevents callbacks on nearly every threaded connection.
Types of Thread Seal Tape
- White PTFE (general purpose): Used for water supply lines, compression fittings, and most residential threaded connections. The standard choice for 90% of household plumbing.
- Yellow PTFE (gas lines): Denser and thicker than white tape. Required for gas connections – do not substitute white tape on gas lines.
- Pink PTFE (water service): Certified for potable water lines. Required in some jurisdictions for lines that carry drinking water.
- Blue PTFE (oxygen and HVAC): Used for oxygen lines and specialized fittings where oil contamination from standard tape is a concern.
How to Apply Thread Seal Tape Correctly
- Clean the male threads – no oil, dirt, or old tape.
- Hold the tape against the first thread at the end of the pipe.
- Wrap clockwise (the same direction you’ll thread the fitting) – 2-3 wraps for most connections, 3-4 for high-pressure lines.
- Pull the tape tight as you wrap to seat it into the threads.
- Tear the tape and press the tail flat against the threads.
- Thread the fitting immediately – the tape bonds as it compresses.
Top Picks
1. Oatey 31230 White PTFE Tape
The most widely available professional-grade white PTFE tape. 260 inches per roll, consistent density, and sold in every plumbing supply house in North America.
2. RectorSeal 23631 Yellow Gas Line Tape
The industry standard for gas connections. Denser than white tape, rated for natural gas and propane. Never skip this on gas fittings.
FAQ
How many wraps of tape should I use?
Two to three wraps on standard water connections. More wraps will make the fitting harder to thread and can prevent full seating. On brass fittings, three wraps is usually right.
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