Editing Paintball compressed-gas cylinder failures (section)

=== Internal corrosion, 2018 ===

On 14 November 2018, specialist service Paintball Hydro-Testing published an account of a fibre-wrapped paintball cylinder rejected because of internal corrosion.[14]

The cylinder was approximately eight years old.

Corrosion had produced pitting inside its pressure-containing wall, including damage sufficient to create a pinhole leak.

The testing service identified contaminated compressed air as a possible contributing factor, although the precise cause was not established.

The report did not establish whether the cylinder's hydrostatic certification had expired.

The case demonstrates that internal structural damage may be discovered through inspection even when the cylinder's exterior appears serviceable.