GPI closure with solid aluminum cap - knurled ring for a good grip on the closure.

Description: Screw cap GPI 28 exclusive of plastic and aluminum with anodized aluminum casing in gold
For mouth: GPI 28mm (outer diameter 35mm, height 20mm)
Product notice: liquor closure
Suitable for manual closing.

Aluminum-plastic screw cap GPI 28 exclusive, gold — screw cap

The Aluminum-plastic screw cap GPI 28 exclusive, gold is a screw closure for spirit bottles that pairs a gold-anodized aluminum cap with a plastic sealing insert for consistent manual capping.

• Aluminum cap with gold anodized finish
• Cross-knurled rim for reliable grip
• Designed for spirit bottles and hand capping
• Compatible with GPI 28 necks (35 mm × 20 mm)
• Aluminum-plastic construction for durable use

Solid construction and consistent sealing

The Aluminum-plastic screw cap GPI 28 exclusive, gold combines a rigid aluminum outer shell with a molded plastic insert to ensure repeated seal performance. Components are dimensioned to provide consistent seating and reduce variability during manual closure operations.

Corrosion resistance and appearance retention

The gold-anodized aluminum shell resists handling wear and preserves a premium visual finish. The surface treatment minimizes corrosion risk and keeps lids looking uniform across production batches, supporting a refined shelf presentation.

Seal integrity through engineered insert

A precision plastic insert maintains contact with the bottle mouth and reduces permeation. The insert's geometry supports liquid-tight closure for spirit products while enabling straightforward manual assembly without special tooling.

Practical handling and exact fit

A cross-knurled rim ensures secure grip for hand capping and fast application. The screw closure is made for a GPI 28 mouth, matching a 35 mm outer diameter and a 20 mm height to support repeatable torque and correct seating every time.

Intended users and applications

Designed for beverage producers and bottlers of spirits, the closure meets the needs of teams that rely on manual or semi-automatic lines. It provides a premium look while maintaining practical handling and sealing properties for finished goods.

Packaging and supply for commercial filling

Packaging scales are aligned with commercial fillers, with larger pallet quantities available for industrial supply chains. This reduces handling effort and keeps logistics efficient for continuous production runs.

Recycling note and material composition

The closure combines aluminum and plastic components; the recycling code C/ALU 90 indicates a mixed-material composition. The chosen materials balance durability, appearance, and the functional demands of beverage closures.

For finishing spirit bottles with a consistent premium touch, choose the GPI 28 screw cap for reliable manual capping and a gold-anodized look.

Kernfeatures

Robust gold-anodized aluminum cap

The outer shell uses gold-anodized aluminum to maintain a uniform appearance over repeated handling. This ensures the closure keeps its premium look through storage and transport.

Cross-knurled rim for faster manual application

The specially knurled rim gives a secure grip while hand-tightening. It reduces slippage and speeds up manual capping without extra tools.

Precision fit to GPI 28 necks

Dimensions match GPI 28 necks with a 35 mm outer diameter and 20 mm height. The fit supports predictable torque and seating for consistent closures.

Plastic insert for liquid-tight sealing

The molded insert ensures a tight seal suitable for spirit bottles, reducing evaporation and maintaining product integrity during shelf life.