Foil liner compatibility guide
A strong induction seal depends on the complete pack: cap, liner, container mouth, cap torque and the product environment.
What must be compatible?
The aluminium foil heats during induction sealing, but the layer that bonds to the container mouth must be designed for the container material. A liner intended for one plastic may not seal correctly to another. Glass, PET, HDPE and PP applications can require different liner constructions.
Cap torque matters
The cap holds the liner against the container mouth during heating. Inconsistent torque can cause partial contact, edge leaks or uneven seal pressure.
Container mouth finish
The sealing land should be flat, clean and free from product contamination. Damaged or irregular rims reduce the chance of a continuous seal.
Need a compatibility check?
Send cap, liner and container details before final machine selection.