Select contact service:
Peel-off rings are an alternative to conventional easy-open ends. Varnished rings are closed with a thermo-seal foil.
The most demanding operation is the curling of the ring. A type steel type which bonds well with lacquer is required.
As the steel grades used to make rings are quite ductile, the same grade can usually be specified for both round and non-round rings.
Steel grades frequently used: TH330 and TS275.
Metallic coating: Tin coating or ECCS. ECCS can be used when the can’s contents are not aggressive. ECCS also assists lacquer adhesion.