Removing rust, scale and coatings with grit blasting requires containment and/or clean-up, and those costs can have a significant impact on profitability. For contractors doing environmental remediation – removing asbestos or lead paint, for example – the containment issue is even more critical.
NLB water jetting quickly removes coatings, rust, and other tough adherents without the hazards of grit blasting. The resulting surface meets or exceeds all recognized standards (including the WJ-1 or “white metal” specification of NACE No. 5 and SSPCSP-12, and SIS Sa 3). Water jetting solutions for surface preparation is also the only way to meet the SC-2 standard for removing soluble salts, which hamper adhesion and often lead to coating failure. During grit blasting, these salts are often trapped in cavities within the metal. But ultra-high pressure (up to 40,000 psi, or 2,800 bar) water jetting cleans deeply enough to prevent these invisible “corrosion cells” from forming, and even restores the surface’s original profile.
NLB’s HydroPrep™ system gives you the productivity of grit blasting without expense, hazards, and clean-up problems. Its vacuum recovery feature not only simplifies disposal but leaves a clean, dry surface — free of flash rusting and ready to recoat.
When your project involves large, vertical surfaces, you need NLB’s versatile HydroPrep™ system. It features a rugged ULTRA-CLEAN® pump unit and vacuum recovery of wastewater and debris, plus the specific accessories you need for manual or automated work.
When you consider all the factors, NLB’s HydroPrep™ system consistently outperforms grit blasting. In addition to achieving a quality surface, water jetting:
- Significantly simplifies clean-up and disposal
- Minimizes operating and maintenance costs
- Can be performed nearly anywhere
- Drastically reduces airborne pollutants
- Removes invisible containments (e.g. entrapped chlorides)
- Virtually dust-free, so won’t damage nearby equipment
- Operates at lower sound levels
- Uses only a few gallons of water (usually recycled)
- Requires minimal training
Contact our team today for more information on our water jetting solutions for surface preparation.