16 points•0 comments•4d ago•by BiraIgnacio•quirkyscience.com ↗

How to Glue Teflon

An article explains that PTFE (Teflon) is highly nonstick and difficult to glue. It describes a chemical pre-treatment using sodium naphthalenide in THF that partially substitutes surface fluorine with naphthalene, enabling adhesion to the outer layer while preserving bulk properties. The piece concludes there is no universal adhesive for Teflon; bonding is achieved only by chemically modifying a surface region rather than using a standard glue.

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