IBC Cage Rusting and Prevention
The cages of intermediate bulk containers (IBCs) are an important part of these storage products as they provide structural support and protection for the internal tank as well as maneuverability. Many consumers, (homeowners, DIY hobbyists), farmers, and businesses alike often have the question as to whether or not the IBC cage can rust. The “will rust” or “won’t rust” answer is in the exact material used to make the cage as well as the conditions they are exposed to.
Do IBC Cages Rust?
Many lower grade quality IBC cages are made from standard steel. While steel is known for its strength, standard steel can begin to rust when exposed to moisture and oxygen over time.
Higher quality IBC totes use galvanized steel or stainless steel cages, which provide significantly superior protection against rusting. Galvanized steel features a zinc coating layer that acts as a barrier against rust. Stainless steel differs from galvanized and standard steel as it contains chromium to form an oxide layer over the surface that prevents rust formation.
Even though galvanized and stainless steel built IBC cages offer significant rust resistance, they are not entirely immune to rust, especially under harsh working such as ones that cause damage to the cage frame and heavy environmental conditions such as locations with frequent precipitation.
How to Keep an IBC Cage from Rusting
- Painting: Applying a coat of outdoor-rated, weather-resistant paint or spray paint can slow down the rusting process. For this method, it is important to select the correct paint type (due to the many options) and ensure the cage is clean and dry before painting for the best results.
- Use Galvanized Steel Caged Totes: If rust is a significant concern, choose IBC products with a galvanized steel cage as they offer better rust resistance compared to lower quality steel IBC totes. For inquiring minds and customers, our IBC totes are galvanized steel caged IBC totes.
- Regular Inspection and Maintenance: Regularly inspecting the cage for signs of rust and addressing them promptly can prevent the rust from spreading and weaking the IBC cage. Maintenance can involve using rust removers and/or painting.
- Proper Storage: Avoid leaving your IBC standing in water as this can and will likely rapidly accelerate the rusting process. Also, if possible, store the IBCs indoors or under a cover to protect them from the elements, especially when not in use or during off-seasons.
- Coating with Rust Inhibitors: Several rust inhibitor products are available that can prevent rust from forming on an IBC cage. These products work similarly to paint and create a barrier between the metal and the environment to block the oxidation reaction that causes rust. Prior to coating, it is recommended to separate the inner plastic tank and the cage to prevent accidentally coating the container.
- Use Stainless Steel IBC Totes: Stainless steel, due to its chromium content, offers the best rust resistance of the three steel types listed here. If rust is a major concern due to the work environment and conditions, choosing a stainless steel IBC tote can be the best choice but will incur a greater cost expense due to the higher grade steel.
- Proper Handling: Always ensure IBCs are handled with care to prevent scratches or dents to the cage as such damages can expose the bare metal and act as the starting point for rust to form.
- Environment Control: Keeping IBCs in a controlled environment, where humidity and temperature are maintained, can significantly slow down the rusting process.
Even though any steel IBC cage can rust, the above protective measures can be used to prevent rusting and prolong the IBC’s lifespan so it can serve your needs for years to come.