18mm Plastic Black cap with clear tamper

A robust tamper-evident (TE) closure designed for 18mm neck-finish bottles, combining a black polypropylene cap body with a clear tamper-evident band that provides a visible seal of security until first use.

The closure is a three-part assembly engineered for a secure, consistent fit: the main cap body, an integrated PE liner/gasket for leak-proof sealing, and a frangible tamper-evident ring that snaps off cleanly on first opening to give clear proof of tampering or prior use.

Key features:

• Cap diameter: 18.1mm (outer skirt diameter 22.2mm)
• Thread: 10-start, 1" pitch (10Fx1") — standard fit for 18mm PFP-type necks
• Total height: 17.8mm (± 0.5mm)
• Material: Polypropylene (PP) cap body, Polyethylene (PE) liner and tamper ring
• Component weights: Cap ~1.4g, liner ~0.3g, tamper ring ~0.4g (approx. 2.1g total assembly)
• Tamper-evident band: Clear, frangible design — breaks away on first opening for visible proof of seal integrity
• Tolerance: General tolerance ± 0.2mm

Ideal for water, beverage, and general liquid bottling applications where security, consistency, and consumer trust are essential. The tamper band gives retailers and end users immediate visual confirmation that a product hasn't been opened or interfered with prior to purchase.

Manufactured to strict dimensional tolerances for reliable, repeatable capping line performance.

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