How do I choose the right PTFE tape for a water system?

How do I choose the right PTFE tape for a water system?

When choosing PTFE thread seal tape for a water system, consider the pipe material, thread size, tape thickness, tape density, operating conditions, and any certification requirements.

For general household plumbing and maintenance, a standard water-grade PTFE tape may be sufficient. Professional, commercial, or engineering applications may benefit from higher-density tape for greater material coverage and more consistent installation.

For potable water systems, also check whether drinking-water approvals such as WRAS or ACS are required for your market or project.