Surface Preparation
Silver Raven offer a wide range of surface preparation options for your project using our Ultra High Pressure (UHP) and High Pressure (HP) water jetting techniques.
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What Is Surface Preparation? | UHP Water Jet Profiling for Durable Coatings
High‑pressure water jetting, either Ultra‑High Pressure (UHP) or High Pressure (HP), used in surface preparation (like scabbling, coating removal, or rust cleaning) efficiently removes weak or contaminated material and leaves a clean, roughened surface that significantly improves adhesion for repair or overlay applications.
This method generates no dust, no vibration, and no microfractures, ensuring the structural integrity of the substrate is preserved, unlike traditional mechanical or chemical approaches.
By keeping embedded reinforcement (e.g. rebar) intact and even cleaning it during preparation, it eliminates the need for additional steps like sandblasting, saving time and cost.
Surface preparation via hydrodemolition produces a textured, mechanically bonded profile which enhances bond strength between new materials and the substrate, leading to long-lasting, durable repairs.
Benefits of Hydro-Demolition
Surface preparation can be completed using manual lancing or remote operated robots. We have experience in providing the following surface preparations:
- Scabbling of a surface in preparation for the application of a repair material
- Removal of industrial coatings
- Removal of rust and contaminants from steel and concrete structures
- Removal of road markings
Concrete Slab Scabbling
Scabbling is the preparation of an existing or damaged surface to allow for secondary product adhesion. Scabbling increases the effective adhesion of the existing surfaces and removes any loose, spalling, or honeycombed surface issues.
Our high-pressure units can efficiently remove 20mm of material (effective depth for scabbling) without creating any dust or compromising the structural integrity of the structure.
Applications for scabbling works include:
- Structural concrete soffits
- Concrete columns, slabs on ground and walls
- Underside of marine assets
- Increasing thickness of existing concrete for fire rating
- Remediation of failed structural assets
- Added slip resistance to concrete pathways
- Surface preparation for epoxy coatings
- Asphalt surface preparation
