They are made from alloyed aluminium-sheet. On the outside they are lacquered or lithographed as desired by the buyer. At his request an inscription or mark can be printed on the closure. The majority of the gasproof roll-on closures have a security band with perforation (VP-...). If requested, the security band can be made with 6 incisions.

Gasproof roll-on closures are designed to seal carbonated beverages. Only injected PVC-Fee compound can be used for sealing purposes.

When ordering indicate the closure type and height, the type of the liner and the number of additional incisions on the security band.