Product Overview
The 31.5mm aluminium ROPP caps is a popular neck size for bottles of essence syrups. Designed for bottles with ~31.5mm neck finishes, it delivers excellent barrier properties against oxygen and moisture, tamper-proof seal integrity, and visually appealing branding space.
Ideal for export-oriented drink bottles or food oil packaging where durability and regulatory compliance are essential. The 31.5mm caps is highly durable, performing consistently across bottling, transport, and retail environments.
Its construction protects against denting and leakage while supporting high-speed filling lines and automated capping systems, ensuring efficient operations without compromising product safety.