Glass cargo is one of the most challenging cargoes carried at sea. Even on relatively short voyages, minor movement within the stow can result in significant damage and costly claims.

In a recent case handled by NNPC Marine Insurance, a cargo of glass carried in wooden crates suffered extensive damage during the voyage and discharge operations. The claim ultimately resulted in the arrest of the vessel and lengthy discussions regarding liability and recovery rights.
Unlike many other cargoes, glass is highly sensitive to vibration, pressure and impact. Damage is often not visible from the outside and may only become apparent when the crates are opened at the receiver’s warehouse. Experience from recent claims indicates that glass cargo damage often results from a combination of factors rather than a single incident. Typical causes include:
- Inadequate stowage planning
- Insufficient dunnage between cargo units
- Poor lashing and securing arrangements
- Excessive void spaces within the stow
- Cargo movement during heavy weather
- Improper cargo packaging or crate construction
- Damage caused during loading or discharge by stevedores
- Rough handling by forklifts and shore equipment
To reduce the risk of damage, Members should consider paying particular attention to:
- The condition and suitability of the packaging
- Proper stowage planning and elimination of void spaces
- Adequate dunnage and securing arrangements
- Careful supervision of loading and discharge operations
- Early appointment of surveyors where appropriate
- Comprehensive photographic evidence and record keeping
Before concluding a fixture, shipowners should verify the charterer’s corporate identity, financial standing and operational track record as well. Even where charterparty clauses clearly allocate responsibility for cargo operations, recovering losses may prove difficult if the responsible party cannot be easily identified or lacks the resources to respond to a claim. Early due diligence can therefore be just as important as proper cargo securing when managing risk.
Should our Members have any questions regarding carriage of glass cargo or need any assistance, the NNPC Claims team remains 24/7 available for support at claims@nnpc-marine.com or +31 (0)50 5343211.



