What is the difference between injection-moulded and extruded synthetic closures?

Injection Moulded

• Individually moulded to ensure consistency.
• Closure is formed in one process.
• Incorporates a chamfer for easy insertion/re-insertion.
• The ends are sealed for ultimate wine protection.

Extruded

• Requires up to 3 stages of manufacture – extrusion, cutting and chamfering.
• Non-chamfered product is difficult to re-insert into the bottle and can cause ‘lipping’ during bottling.
• Chamfering is an optional and additional process that adds cost and may create concerns with dust.
• Open foam structure is in contact with the wine.

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