UHP Water Blasting & Cleaning Services
Environmentally friendly, high-performance surface preparation technology — safe for live assets, free of abrasive contamination, and suitable for demanding marine and industrial environments.
Surface Preparation Without Abrasive Contamination
JST Group offers Ultra-High Pressure (UHP) water blasting and cleaning services for safe, efficient, and environmentally responsible surface preparation. Operating at pressures typically above 35,000 psi, UHP water blasting removes coatings, contaminants, salts, and corrosion products without abrasive media.
This makes UHP water blasting the preferred choice for sensitive assets, live operating facilities, marine and offshore structures, and environments where abrasive blasting is restricted or prohibited.

Why UHP Water Blasting?
A cleaner, safer, and more environmentally responsible alternative to abrasive blasting — without compromising on surface cleanliness.
No Abrasive Contamination
UHP water blasting uses only pressurised water — no abrasive media is introduced to the substrate or surrounding environment.
Excellent Surface Cleanliness
Removes coatings, salts, corrosion products, and contaminants effectively — achieving high surface cleanliness without abrasive blast.
Suitable for Live Assets
Safe for use on live plants and offshore assets where abrasive blasting is not permitted or practical.
Environmentally Friendly
Eliminates airborne abrasive dust, reducing environmental impact and health and safety risk to workers and the site.
Where UHP Water Blasting Is Used
Coating Removal
Full or partial removal of existing coatings from steel, concrete, and composite substrates prior to recoating.
Surface Preparation
Substrate preparation for new coating application — achieving the required cleanliness and surface profile.
Maintenance & Rehabilitation
Structural and plant maintenance where access is restricted or abrasive blasting is impractical.
Marine & Offshore Structures
Hull cleaning, jetty structures, and offshore assets where environmental controls are critical.
Industrial Plant
Piping, vessels, and structural steelwork within operating facilities and refineries.
Concrete Surfaces
Cleaning and preparation of concrete floors, foundations, and infrastructure for repair or coating.
How We Deliver It
From site assessment to surface sign-off — with optional integration into follow-on coating application.
Site Assessment
Review of surface condition, coating type, asset sensitivity, and access constraints to confirm UHP suitability and pressure parameters.
Mobilisation
Deployment of mobile UHP units with experienced operators — including water supply, waste containment, and environmental controls.
UHP Blasting
Ultra-High Pressure water blasting carried out to specified cleanliness standards — SSPC WJ-1 through WJ-4 as required.
Handover & Coating
Surface inspection and sign-off, with seamless integration into follow-on coating application works if required.
JST Group UHP Capability
JST Group operates mobile UHP water blasting units with experienced operators trained in safe, effective surface preparation. Our capability is integrated with our coating application services for a complete supply-and-apply solution.
Preparation & Coating From One Source
- Mobile UHP units deployable to onshore, marine, and offshore locations
- Experienced operators trained in safe UHP operation and environmental controls
- Integrated with Guardian and other approved coating systems
- Full surface condition documentation and inspection records
- Active across Southeast Asia, the Middle East, and Africa
Clean surface. Right the first time.
Surface preparation integrated with coating application.
Ready to Discuss Your Surface Preparation Needs?
Contact our team to discuss UHP water blasting scope, asset access requirements, and integration with your coating program.