Steel Boats
Steel craft are typically robust however they are susceptible to corrosion and are very dependent upon the protection of the coating systems.
The longevity of a steel boat depends on the standard of its build and its subsequent maintenance.
The preparation of surfaces for welding and the application of the coating systems are key factors to be considered during build or in the event of modifications and repairs.
Steel lends itself to repair however effective re-coating of the steel is not so easily achieved and it is important that the coating system is not compromised by details of design, build or repair.
Ultrasonic Thickness Measurement (UTM) of plating is basic to the condition survey of a steel hull.
Generalised thinning of plating and structure over the life of the boat should have been anticipated by scantlings and so should not be problematic within the limits of the corrosion allowance. Localised corrosion mechanisms are of greater concern and it is crucial that these are recognised.