28/10/2026
You treated the surface, measured a healthy dyne level, and sent the part on. Two days later, the ink won’t hold.
This is rarely a treatment failure. It is hydrophobic recovery: the gradual return of a treated surface towards its original low-energy state.
Plasma activation raises surface energy immediately, but the effect is not permanent. Within hours, polar groups reorient, additives migrate up from the bulk, and airborne hydrocarbons settle onto the reactive surface. How fast it happens depends on temperature, time and storage.
The fix is process discipline: treat close to the point of use, measure at the point of use rather than off the line, and store parts cool, clean and sealed. Where a surface needs to stay functional for weeks rather than hours, CoatX® plasma-polymerised coatings are covalently bonded with no hydrophobic recovery to manage.
Activation remains the workhorse. The key is knowing how it behaves once the part leaves the chamber.
Swipe through for the full breakdown.
Troubleshooting dyne loss on your line? Let’s discuss your application: https://buff.ly/YvGdlx9