Henderson Warehouse
Laser Cleaning and Re-Coating
LOCATION
SERVICE
The Challenge
Rust was advancing on the structural steel within the warehouse, and it needed to be addressed before it progressed further. Conventional abrasive blasting was considered, but it would have brought abrasive media, a containment setup and dust into an active warehouse environment, adding complexity to a site where operations were continuing around the work.
Our Approach
BlastOff used industrial laser cleaning to remove the rust from the affected steel members without abrasive media, chemicals or significant waste. This approach left the steel clean and immediately ready for coating, avoiding the containment and dust management that abrasive blasting would have required. Protective coatings were then applied directly onto the laser-cleaned surface, with the process managed to keep disruption to the surrounding warehouse operation to a minimum throughout.
The Outcome
The structural steel at the Henderson warehouse received renewed corrosion protection through a precise, contained process. The laser cleaning removed the rust without spreading abrasive media or dust through the facility, and the follow-up coating restored the protective barrier over the steel while keeping disruption to the operating warehouse to a minimum.
Rust on the Rafters: Laser Cleaning Structural Steel Without Shutting Down a Henderson Warehouse
Rust was progressing across the structural steel inside a fabricator’s warehouse in Henderson, Auckland, and needed to be dealt with before it went further. The obvious option, abrasive blasting, was considered and set aside: it would have introduced abrasive media, a containment setup and dust into a warehouse that was continuing to operate around the affected steel, adding a layer of complexity the site could do without.
BlastOff instead used industrial laser cleaning to remove the rust from the steel members, a process that uses controlled energy rather than fired media, chemicals or significant waste. That left the steel clean and immediately ready for coating, without the masking, media recovery or dust management that a blasting job of the same scale would have required. Protective coatings were then applied straight onto the laser-cleaned surface, with the whole sequence managed to keep disruption to the surrounding warehouse operation to a minimum throughout.
The steel came away with renewed corrosion protection, delivered through a precise, contained process rather than a broader blasting scope.
For fabricators, warehouse owners and facilities managers dealing with isolated rust on structural steel in an occupied building, this project is a good illustration of when laser cleaning is worth considering over conventional blasting. It suits localised corrosion, tight access or situations where nearby equipment and stock make containment difficult, though the cleaned steel still needs prompt protective coating to stop flash rust setting back in. The gap between cleaning and recoating matters just as much as the cleaning method itself, since bare steel exposed to a warehouse atmosphere for too long will start to oxidise again before the new coating ever goes on. Anyone scoping similar work should have the extent of corrosion assessed early, since that shapes whether laser cleaning or blasting is the more practical route, and should confirm how quickly the cleaned steel can be coated once exposed.
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