Derust removal with high-pressure water not only a gentle ultra-high-pressure application, but an effective and environmentally friendly solution
Rust removal with high-pressure water is a fast and cost-effective process for removing rust from smooth surfaces and substrates. The use of ultra high pressure (UHP) equipment has increased significantly over the years along with the development of new technologies. One of the main reasons is that this process is a dust-free blasting method with very few side effects on the environment. As a rule, it does not affect even dust-sensitive work. The process also offers the ecological advantage of eliminating the need to collect and dispose of abrasives.
Advantages of derusting with high-pressure water
- no damage to the original substrate profile
- improved cleanliness of the substrate surface, as there are no grinding residues
- significant cost savings
- fewer health problems due to the elimination of pollutants in the air
- can be used on various materials and surfaces
- low noise level
- up to 20 % better paint adhesion due to clean and uniform surface
Enormous rust removal capacity in a dry dock through high-pressure nozzles with guns and rotating nozzles
Dry docks must undergo regular paint and rust removal procedures and their protective coatings must be reapplied. The prerequisite for the reliable adhesion of new primer and protective paint coating is a surface free from rust, oil, grease and other contamination. To achieve this, high-pressure pump systems are employed to provide water for blasting with 2,000 bar and maximum-pressure water jets with 2,200 bar.
At a dry dock in the northern Italian location of La Spezia on the Mediterranean, KAMAT high-pressure systems were used for rust-removal. So that the new application of the protective coating could offer long-term security, a WJ-2 surface quality was required after the high-pressure shot-blasting. This was achieved using two pump units in combination with KAMAT pumps of type K9018-3GA. With a performance of 25 liters per minute, the pumps generate a pressure of 1,200 bar. Work was carried out using KSP 1200 guns and attached KAMAT rotating nozzles of type 1500. This combination made it possible to remove the rust from the dry dock, to the required surface finish, at a rate of 30 to 40 square meters per hour.
