Marine Surface Preparation

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The high-pressure waterjet technology has now been employed for decades in simple ship cleaning tasks. Today, due to environmental and economical consideration, it is an important tool for surface preparation work on ships prior to coating application.

 

This high pressure technology offers ultra-high pressure waterjets with operating pressures up to 3,000 bar (43,500 psi). With these high pressures, this high pressure technology is well accepted by the maritime industry all over the world.

 

 

THIS ULTRA HIGH PRESSURE WATERJET TECHNOLOGY IS UESED FOR THE FOLLOWING APPLICATIONS

  • Cleaning of ship hulls.
  • Cleaning of superstructures and on-board equipment.
  • Cleaning of superstructures and on-board equipment.
  • Cleaning of ballast tanks.
  • Cleaning of tanks, vessels and internal pipe systems.
  • Surface preparation prior to coating application.
  • Removal of deteriorated protective coating systems.
  • Spot repair on partially deteriorated coating systems.
  • Selective paint stripping.
  • Cleaning and descaling of weld seams.
  • Emission-free surface preparation on ship hulls and superstructures.
  • Large-scale surface preparation with mechanically guided tools.
  • Cutting of steel.
  • Cutting of internal pipe systems.

ADVATNAGES OF ULTRA HIGH PRESSURE WATETJET TECHNOLOGY

  • It significantly reduces the amount of deposit. Compared to grit blasting, up to 98 percent less solid waste material needs to be considered. Hence customers save large amounts in disposal costs.
  • It considerably reduces the time required for cleanup because no grit needs to be collected and removed at the end of the job. Thus, customers save hundreds of hours of time and labor.
  • It is dust-free, allowing different trades, to work side by side. Moreover, dust-sensitive areas can be maintained while the waterjetting is carried out. Therefore, customers save expensive time in drydocks.
  • It does not require wrapping or unwrapping of vessels. Customers save large amounts of time, labor and material costs related to wrapping and unwrapping a vessel.
  • It generates very low impact forces on surfaces; working almost vibration-free. No substrate material will be removed. Hence a customer avoids damage on their structures.
  • It is used in rainy or windy environment. Hence the customers are not dependent on weather conditions and can readily schedule work with a high reliability.
  • It guarantees the highest possible cleanliness level among all surface preparation methods. The remaining level of salt, chloride and other elements is minimized. There is no embedded grit as found after grit blasting being a source for new corrosion. The customers therefore can offer an excellent surface to the painter with minimal risk of osmotic blistering.
  • It ensures excellent adhesion conditions between substrate and coating even if flash rust is present.
  • It exposes the original profile. In contrast, grit blasting reduces the original profile height due to particle impact. Thus customers offer an excellent surface profile to the painter giving a good mechanical bond between substrate and coating.
 
 
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