Angular, iron-free single-use and reusable blasting agent based on flat glass
Diverse Selection of Blasting Agents for Different Requirements in Shipbuilding
Suitable Blasting Agents for Shipbuilding
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Blasting Agents for Thorough Surface Preparation
Metal surfaces in shipbuilding are exposed to extreme conditions: saltwater, moisture, waves, sunlight, and chemical substances continuously attack the structures. Rust and corrosion can endanger not only the appearance but also the structural integrity and thus the safety of ships.
To apply durable protective systems such as antifouling, coatings, primers, or metallic coatings, thorough surface preparation is essential. Only clean, roughened surfaces ensure the adhesion and effectiveness of protective layers.
Blasting agents play a central role in this process. They reliably remove rust, scale, old coatings, oil, grease, and other contaminants, creating an optimal foundation for corrosion protection systems in shipbuilding.
Why Are Blasting Agents Indispensable in Shipbuilding?
Ship structures typically consist of steel, stainless steel, or aluminum. Particularly for steel components, it is crucial to remove rust and scale before applying protective coatings. The selection of the right blasting agent significantly influences roughness, material removal, and the economic efficiency of the blasting process.
Blasting agents ensure:
Removal of rust, scale, old coatings, oil, grease, and dirt.
Creation of the required surface roughness for optimal adhesion of primers and coatings.
Increases surface energy and improves wettability for coatings.
The standards ISO 8501–1 for cleanliness grades and ISO 8503 for roughness grades are typically mandatory in shipbuilding, especially for international projects.
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Advantages of Blasting Agent Applications in Shipbuilding
- Maximum adhesion for coatings, antifouling, or metallic coatings
- Effective rust removal, even on heavily corroded ship steel surfaces
- Standards-compliant surface quality according to ISO standards
- Gentle processing of sensitive components such as aluminum or stainless steel.
Tips for Blasting Agent Application in Shipbuilding
Process stainless steel or aluminum components only with iron-free blasting agents to prevent flash rust.
For protective coatings in shipbuilding, roughness levels are recommended depending on the coating systems.
Robust hull components require higher blasting pressure, sensitive superstructures require less.
Worn blasting agent reduces material removal and homogeneity. Regular screening ensures consistent surface quality.
Freshly blasted surfaces oxidize quickly. Antifouling or primers should be applied within a few hours after blasting whenever possible.
Enclosed blasting systems and containment systems minimize dust exposure. Personal protective equipment such as respiratory protection, gloves, and protective suits is mandatory.
Particularly for hulls, decks, and superstructures, scaffolding systems or mobile blasting equipment should be used to ensure safety and efficiency.