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High-Pressure Paint-Removal

Paint Removal with High-Pressure Water

Spray processes with high-pressure water enable an efficient processing of the most varied metallic surfaces.

Whether it involves ships, painting cubicles or painted metal roofs: With high-pressure water, paint can be efficiently removed from metallic surfaces. With its different cleaning systems, KAMAT offers a cleaning system for all applications. High-pressure pumps can be combined with matching accessories and coordinated to the paint-removal substrate. By the use of high-pressure guns, surface cleaners and additional abrasives, KAMAT offer extensive options for removing paint with high pressure water.

Reference example: Water-sand blasting process with paint-removal and rust-removal from ships

With the water-sand blasting process, an abrasive agent is added to the high-pressure water, in order to enable efficient paint and rust removal from metallic surfaces. Dust contamination concerns mean that pure sand blasting is prohibited in many countries, or permissible only under strict conditions. Water-sand blasting is an alternative which enables the use of abrasive agents, such as sand, silica sand or ground blast furnace slag, in order to achieve different shot blasting results.

In comparison with purely abrasive agent shot blasting systems, this system has the advantage that no deformation (peening) arises in the shot blasted material. With the water-sand blasting process the heat is removed by the water so no form-changing heat concentration occurs in the shot blasted material. In addition, in case of paint removal with high pressure, the removed material is carried in the water and washed away.

In case of the water-sand blasting process, the high-pressure gun is provided with an injector, through which the abrasive additive is added to the water. With increasing operating pressure, the required quantity of abrasive agent reduces. Vice versa in comparison with pure water jets, a significantly lower pressure is required for a comparable result.

Reference example: Cleaning of painting cubicles in the automotive industry

In painting cubicles of e.g. the automotive industry, so-called overspray arises during the painting process. Overspray is made up of the paint which does not adhere to the workpiece and leaks out into the environment as a spray. The air contaminated with these paint droplets is routed via ventilation systems to cleaning units, such as water spray separators. These exhaust air systems frequently have a large surface area and are covered with grates set in the ground of the painting cubicles. A large percentage of this overspray collects on these grates, and in the ducts leading from them. These system have to be cleaned frequently and, in case of extensive use, even daily.

The painting cubicles are cleaned by the KAMAT customer HIDROTEK. The Turkish company has a framework agreement for the cleaning of the cubicles, shafts and gratings. KAMAT plunger pumps and complete high-pressure cleaning systems are used, with which the paint residues are removed reliably: The cleaning specialist employs high-pressure guns from KAMAT which are provided with fan nozzles with 15° and 2 mm diameter for the shafts and walls. These are operated with pressures between 600 and 700 bar. The advantage: The KAMAT high-pressure gun can be guided exactly so that shafts can also be cleaned accurately. Furthermore, our high-pressure guns offer an ergonomic structuring which enables safe and fatigue-free work. The paint-removal of the ground-grating is implemented with the KAMAT surface cleaner.

Reference example: Layer removal and paint-removal from painted metal roofs

Painted metal roofs are exposed to diverse influences from the weather: Extending from high temperature cycling and build-ups of heat, through the influence of ultraviolet radiation and dirt, to mechanical influences such as hailstorms. All these influences lead to the weathering of the paint coating over time leading to it becoming fragile and porous. As soon as the sheet metal substrates are unprotected, they start corroding and a new coating is absolutely necessary. So that the new coating adheres securely, the old paint must be removed completely.

Before the application of a new coating (manually or with spray equipment), the market leaders of the coating and paint materials demand a complete removal, not only of the visible paint finish, but also of the priming layers and corrosion. Only then do the paint manufacturers guarantee the stability of their products for up to 20 years.

In Austria we cooperate, among others, with a specialist firm for the paint removal from painted metal roofs. For years it has implemented coating removal with no residue. Formerly this was implemented with hard work using angle grinders, and was associated with enormous noise and dust contamination. Today the paint removal is implemented rapidly and securely with KAMAT pumps together with the

surface cleaner 2,500 air, which removes all paint coatings and emerging corrosion to leave a residue free surface using an operating pressure of 2,000 to 2,500 bar. For the manual post-cleaning at the folds, the customer uses a high-pressure pump and the Roto-Lance with an operating pressure between 2,000 and 2,300 bar. Dependent on the quality of the old paint, the KAMAT high-pressure pump and the pump accessories enable an area of 100 to 250 m2 to be cleaned per day.

Downloads

Application Download
Removal of Coatings and Old Paint Layers from Building Application Report [155 KB]
Automatic Cleaning in Tunnels Application Report [231 KB]
Automatic Ship Hull Cleaning at 2500 bar with Suction Device and Filtration Application Report [413 KB]
Semi-automatic Concrete Removal Application Report [214 KB]
Concrete Renovation - Manual Application Report [232 KB]
Removal of an "Anti-Slip" Coating from the Runway of an Aircraft Carrier Application Report [160 KB]
Removal of Sinter Rings in Rotary Furnaces Application Report [57 KB]
Deburring and Washing Application Report [323 KB]
Removal of Moulding Sand from Castings Application Reports [139 KB]
Removal of Paint and Rust from Ships up to 2500 bar Application Report [204 KB]
Removing Rust and Paint with Water / Sandblasting Application Report [58 KB]
Decoating a Collection Basin Under Storage Tanks Application Report [1 MB]
Removal of Coatings and Paint Layers from Sheet Metal Roofs Application Report [773 KB]
Removal of Coatings and Paint Layers from The Folds On Tin Roofs Application Report [119 KB]
Descaling of Billets in Roller Mills Application Report [347 KB]
Filter Press Cleaning Application Report [422 KB]
Cleaning Paint Grids in the Car Industry Application Report [569 KB]
High-Pressure Water Inhibits Emission of Heavy Gases Application Report [1 MB]
Hydraulic Longwall Power Packs Application Report [398 KB]
Runway Cleaning at 600 bar Application Report [657 KB]
Runway Cleaning at 2000 bar Application Report [437 KB]
Runway Cleaning up to 2500 bar with Suction Device Application Report [329 KB]
Driving Piles into the Seabed Application Report [254 KB]
Cleaning a Filter Screen Drum Application Report [182 KB]
Cleaning a Conveyor Belt in the Fibre Glass Industry Application Report [306 KB]
Cleaning Building Machinery Application Report [127 KB]
Cleaning Parts of an Extruder in the Polypropylene-Production Process Application Report [2 MB]
Cleaning of Boilers - Flame-exposed Side Application Report [311 KB]
Cleaning of Boiler Tubes Application Report [1 MB]
Cleaning of Condensers in Power Plants Application Report [115 KB]
Cleaning Plate Application Report [311 KB]
Pipe Line Cleaning Application Report [434 KB]
Cleaning of pipes using the "TORNADO" Application Report [806 KB]
Cleaning of Ship Hulls up to 1000 bar Application Report [179 KB]
Cleaning of Deep Water Wells Application Report [742 KB]
Cleaning of Corrugated Eternit Roofs (Asbestos cement roof panels) Application Report [269 KB]
Standards for Cleaning of Steel Surfaces Application Report [35 KB]
Dry Docks - Steel Preparation to WJ - 2 Application Report [155 KB]
Evaporator Cleaning in the Food Industry Application Report [1 MB]
Automatic Heat Exchanger Cleaning Application Report [406 KB]
Heat Exchanger Cleaning - Manual Application Report [423 KB]
Heat Exchanger Cleaning in a Sugar Factory Application Report [566 KB]
Roll Adjustmentt in Steel Mills Application Report [420 KB]