Any engineer who has ever worked with polytetrafluoroethylene (PTFE) knows the frustration—no matter what adhesive you try, it feels like sticking tape onto ice.
The reason is straightforward: PTFE has an extremely low surface energy (around 18 mN/m) and is highly chemically inert, making it virtually impossible for conventional adhesives to wet out. The traditional "sodium naphthalene solution" treatment can improve adhesion, but the solution is toxic, corrosive, has a narrow process window, and faces increasing environmental pressure.
Low‑temperature plasma offers a much cleaner answer. Using a gas mixture of CF₄+O₂ or Ar+O₂, the synergistic effect of plasma etching and surface fluorination/hydroxylation introduces polar functional groups onto the PTFE surface while creating microscopic anchor points. After treatment, the bonding strength between PTFE and epoxy, silicone, or polyurethane adhesives can be increased by 3 to 5 times—all through a completely dry process with no liquid waste.
This technology has already been validated for PTFE films, seals, tubing, and circuit‑board substrates.
PLAUX has accumulated extensive process data on difficult‑to‑bond materials—from PTFE to PI, from PE to silicone rubber. You don't need to start from scratch figuring out gas ratios and time windows; they already have a proven "process menu" validated on production lines. So stop blaming the adhesive. Change your thinking—get the surface right first.
