Surface Preparation

Surface preparation generally refers to the stripping of coatings & corrosion using Ultra High Pressure (UHP) water jetting equipment at 2000-3000bar (30,000-43,500psi). At these pressures the velocity of the water jet is 500-600m/sec (Mach 1/speed of sound is 340 m/sec) which will strip the toughest of coatings with plain, fresh water.

The velocity of the water jet is over the speed of sound which will strip the toughest of coatings with plain, fresh water

Hughes Pumps manufactures a range of UHP pumps to cater for various surface preparation tasks, from the compact UB10, single gun unit for blasting small areas typically offshore on oil & gas platforms or on ships during voyage where space & fresh water are at a premium, through to the larger UB24 which can be used with single or twin jetting guns or with an automated crawler for stripping large areas, typically ships hulls & oil storage tanks.

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Benefits of Water Jetting

  • Dust free allowing other trades to work in the vicinity
  • Minimal waste disposal, 98% less than grit blasting
  • Environmentally friendly
  • Reduces time during dry-docking
  • No contamination of sensitive rotating equipment
  • In marine environments removes all chlorides from substrate leaving a perfect surface for new paint
  • Unlike grit blasting does not profile steel so does not trap chloride contaminants in the substrate
  • Minimal water consumption, most of which evaporates
  • Sheeting not required
  • Can be used in wet & windy conditions
  • The pump is versatile & can be used for other cleaning & cutting applications