Rusted Bollards: Repair, Recoat, or Replace?
Updated: Sep 2
Rusted bollards are a common maintenance problem around facilities, parking areas, loading zones, and pedestrian areas. But visible rust doesn't always mean the bollard needs to be replaced.
Bollards are exposed to rain, humidity, vehicle impacts, chemicals, and constant contact with the surrounding environment. Once the protective coating is damaged, corrosion can develop and gradually deteriorate the steel.
The first step is determining whether the problem is primarily the coating or the steel itself.
What to Look For
During a maintenance inspection, look for:
Peeling or failed coating
Surface rust
Heavy corrosion scale
Rust around welds
Rust at the base
Corrosion where the bollard meets concrete
Dents or impact damage
Pitting or visible section loss
The base of a bollard deserves particular attention because water and debris can collect where the steel meets the surrounding surface.
When Recoating May Be Appropriate
If the steel remains sound and deterioration is primarily limited to the coating and surface corrosion, maintenance may include:
Surface preparation
Removing loose coating, corrosion products, and contaminants.
Localized repair
Addressing areas requiring additional preparation or repair.
Priming
Applying an appropriate primer where required.
Finish coating
Applying a protective coating suitable for the environment and intended service.
For small areas of deterioration, localized maintenance can sometimes be more practical than completely stripping and recoating the entire asset.
When Coating Isn't Enough
Coating is not a substitute for repairing deteriorated steel.
If you see significant:
Pitting
Section loss
Perforation
Deformation
Cracking
Impact damage
the condition may require further evaluation before coating work begins.
Don't Forget Visibility
Many bollards serve both a physical protection and visibility function.
Where applicable, the coating system may include high-visibility colors or markings appropriate for the facility and its requirements.
The coating system should still be selected based on the substrate, exposure, preparation requirements, and intended service.
The Bottom Line
A rusty bollard isn't automatically a replacement project.
If the steel is still suitable for service, proper surface preparation and a compatible protective coating may provide a practical maintenance solution.
If the steel itself has deteriorated significantly, coating alone may not be appropriate.
Understanding the difference can help facility managers choose the right level of maintenance instead of automatically treating every rust problem the same way.
Summit Painting Contractors provides steel coating, corrosion maintenance, surface preparation, and protective coating services for small facility projects.
Have Rusted Bollards or Steel Barriers?
This article is provided for general educational purposes only. It is not a structural inspection or engineering evaluation. Actual repair and coating requirements depend on site conditions, existing materials, specifications, and applicable professional evaluation.
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