Grit Blasting Service

Maximum Surface Profile for Superior Coating Adhesion

Grit blasting uses angular abrasive media — such as steel grit, aluminum oxide, or garnet — to create a rough, well-defined anchor profile on metal and concrete surfaces. It is the preferred preparation method when maximum paint adhesion is required, especially in corrosive and demanding industrial environments.

What is Grit Blasting?

Unlike shot blasting which uses rounded balls, grit blasting uses sharp, angular particles that cut into the surface rather than peening it. This creates a deeper, more pronounced anchor profile — ideal for thick, multi-coat protective paint systems used in aggressive environments such as offshore, marine, and chemical processing plants.

Key Benefits

• Creates a deep, angular surface profile for excellent coating adhesion
• Effective removal of heavy rust, mill scale, and old coatings
• Suitable for surfaces requiring high-build coating systems
• Available in multiple grit sizes to achieve specified profiles
• Faster cutting action compared to shot blasting on corroded surfaces
• Meets international standards including ISO 8501 and SSPC

Applications

• Offshore platforms and subsea structures
• Chemical and petrochemical plant equipment
• Storage tanks in aggressive environments
• Concrete surface preparation for coatings
• Heavy industrial infrastructure and pipelines

Quality Assurance

Surface cleanliness is verified using comparator blocks and visual standards (ISO 8501-1). Profile depth is measured with Elcometer profile gauges to ensure it falls within the specified range for the coating system to be applied.