3mil vs. 5mil PTFE: What’s the difference and which should I buy?

3mil vs 5mil PTFE: All Your Questions Answered Two of the most common types of PTFE are 3mil and 5mil. MIL is a unit of measure that represents one one-thousandth of an inch (.001 in), so these measurements are nearly imperceptible to the naked eye. So what’s the difference, and why do we sell both […]