A clean ship’s hull makes for minimum resistance in water and resultant fuel savings.

In time, fouling of hulls by sessile animals and vegetation will create resistance to motion through the water. Several factors will influence the extent of fouling, among them the roughness of the hull, the amount of time spent motionless at the quayside, and the amount of sunlight. The most efficient protection against fouling is anti-fouling paint, used extensively for decades. For environmental reasons, many active ingredients in anti-fouling paint have now been banned, resulting in increased rates of fouling of hulls. Environmentally acceptable paints call for more frequent visits to the shipyard, resulting in interruptions to schedules.

IDS offers hull cleaning in all Icelandic ports, for all types and sizes of ships. The service can be provided at short notice, and be carried out during a scheduled visit to port. A typical cleaning project will take a day or two, according to size of ship. Hull cleaning of a 400 ton ship, for example, will take about one day. The cleaning is achieved by the use of hydraulic brushes which are kinder to paint than water jets.

Hull cleaning is usually accompanied by cleaning of transducers and sea chests, and an investigation of the state of zinc anodes. The project is usually recorded on video, which can be monitored in real time. A final report is accompanied by a DVD disc.

Hull cleaning will lead to savings in cost and time. Reduced fuel consumption may be expected, as well as increased speed through water. Cleaning of sea chests and transducers increases reliability. In some instances, a visit to the shipyard may be put off in agreement with the insurers. The Icelandic Diving Service is recognized by the major insurance companies.