Materials and surface treatments for IBC container racks in Finland: how do you choose a solution that can withstand road salt, manure and cleaning agents?

Materials and surface treatment of the IBC container rack In practice, these factors determine whether the rack will withstand everyday use in Finland or whether rust will start to corrode the structure within just a couple of seasons. When the same scaffolding is successively exposed to road salt, manure, preservatives and strong detergents, the importance of the choice of materials and coatings is particularly emphasised on farms and in property maintenance.

In this guide, I’ll explain how different steel grades and surface treatments perform in the conditions found in Kempele, the Oulu region and, more broadly, across Finland – and what a buyer should look for in an IBC container rack when it’s going to be put through its paces. The examples are particularly relevant to racks intended for tractors and wheel loaders, where vibration, splashes and frequent washing are the norm.

Materials and surface treatment for IBC container racks: what do conditions in Finland require?

In Finland, the “basic package” of corrosion is caused simply by moisture, temperature fluctuations and the salt used during the gritting season. When you add to this the risks posed by farm manure (ammonia, organic load, constant dirt) and property maintenance cleaning products (alkaline foams, solvents, repeated hot-water washing), the surface of the racking is subjected to exceptionally severe chemical and mechanical stress.

It is worth starting your assessment of the conditions by asking the following questions: is the rack exposed to de-icing spray whilst in use; is it left outside overnight; is it washed weekly; and does liquid fertiliser or preservative regularly splash onto the rack? Once the risks are clear, the choice is not simply “galvanised or painted” but a holistic one: steel grade + structural details + coating + maintainability.

You can also gain a thorough understanding of the basic mechanisms of corrosion from a reliable source, such as Wikipedia: Corrosion, but when it comes to making a practical purchasing decision, the most important thing is to identify your own exposures and how often they occur.

Steel grades in practice: carbon steel, stainless steel and the effect of structure

Many people start by focusing on the grade of steel: “Let’s go for stainless steel, and that’ll sort the problem.” In reality, the structure of the scaffolding affects its service life just as much as the material. For example, the build-up of water and dirt in recesses, the shape of the joints, the sealing of penetrations, and whether the coating cracks under the weight of chains or forklift tines all determine where corrosion will start.

Carbon steel (structural steel) is a common and cost-effective base material, but it is always dependent on surface protection. Stainless steel typically withstands moisture and many chemicals better, but it is not automatically “maintenance-free”, particularly if salt and dirt remain on the surface or if the structure contains galvanic couples (e.g. contact between different metals) and a mixture of coatings. Furthermore, the welding and finishing of stainless steel affect how the surface behaves in environments subject to splashing and washing.

When fitting a rack to a tractor or wheel loader, it is worth checking not only the steel grade but also the dimensions and load capacity. If the load shifts and the rack flexes, the coating will crack microscopically, allowing rust to set in. From this perspective, it is also worth reading about load capacity and dimensions: Weight and load of the IBC container, as calculated.

Materials and surface treatment for IBC container racks: painting or hot-dip galvanising?

The most common surface treatments for IBC container racks are painting (often industrial wet painting or powder coating) and hot-dip galvanising. A painted surface can be highly effective when the pre-treatment (degreasing, sandblasting/roughening), priming and coating thickness are carried out correctly – and when the structure is designed so that the surface is easy to clean and does not retain standing water. The advantage of painting is often its neat appearance and the fact that localised repairs are possible if the surface becomes dented.

Hot-dip galvanising provides steel with what is known as a “sacrificial” coating: zinc offers better protection than paint alone, even in the case of minor damage and around cut edges. In environments exposed to road salt, hot-dip galvanising is often a sound choice, but even this coating wears away over time, and aggressive cleaning agents or constant mechanical abrasion can accelerate this wear. Furthermore, it is important that the structure is suitable for galvanising (e.g. ventilation and drainage openings) so that the coating forms evenly and no “traps” remain in the structure.

When a rack is exposed to both salt and detergents, what matters is not “one good coating” but how the design and maintenance prevent damage from accumulating.

Everyday hazards: road salt, manure and detergents – where do things usually go wrong?

Practical problems almost always start in the same places: at edges, joints, welded seams and points where metal rubs against metal. Road salt is carried everywhere whilst driving and dries to form a layer that leaves behind crystals, which are reactivated by moisture. Manure and organic dirt, on the other hand, form a “wet film” that keeps the surface active for a long time. Detergents can strip away protective films and accelerate the deterioration of the coating if washing is frequent and the chemicals used are strong.

In property maintenance (e.g. sweeping and washing work in the Vaasa, Kokkola and Oulu regions), the trolley is often in constant use: filling, transport, emptying, washing, storage and transport again. In such cases, even minor knocks add up. If you want to understand how the machine is used specifically in contract work, see also: Transport and use of IBC containers in property maintenance.

Once the risk areas have been identified, it is also worth looking at transport safety: incorrect securing increases both the risk of damage and the likelihood of surface damage. A good reference for this is Transporting an IBC container safely on a tractor.

Checklist for buyers: what should you ask for from a manufacturer such as Lootu Oy?

When purchasing a rack for use in Finland, ask the sales assistant to tailor the solution specifically to your own liquids and cleaning routines: whether you’ll be transporting irrigation water, wash water, liquid fertilisers or preservatives – and whether the rack will be mounted on the back of a tractor or a wheel loader. Lootu Oy (Kempele, Pekurinpolku 3) manufactures metal products and racks specifically for practical use, so buyers would be well advised to draw on the manufacturer’s experience right from the specification stage: the coating, structure and fixings are designed in conjunction with the intended use, rather than as a separate list of items.

Always ask for maintenance and repair instructions as well: how to clean the surface, what products to use, and when to carry out spot repairs. If the rack is painted, ask about the recommended touch-up paint and surface preparation; if the rack is galvanised, ask how mechanical damage should be dealt with and which areas need monitoring. A good rack isn’t just durable – it’s also easy to inspect and maintain, which genuinely extends its service life.

When the aim is to ensure a long service life on farms in Liminga and Tyrnävä, or in property maintenance in Oulu, Vaasa and Kokkola, it is worth making your choice based on “conditions first”. As well as the material and surface treatment, make sure that the rack is designed to be installed and inspected without any fiddly adjustments. If necessary, checking the installation route in advance will minimise surface damage right from the start of use.

Ensuring a long service life: cleaning, inspections and minor repairs

The right surface treatment provides a good starting point, but service life is often determined by routine maintenance. Road salt and detergents are a combination where “infrequent but vigorous” washing can be less effective than regular, gentle rinsing: the salt does not have time to build up, and detergent use remains under control. On a farm, similarly, removing dirt from critical pockets and undersides prevents the rack from remaining constantly damp.

Carry out a quick inspection of the rack as part of your weekly maintenance routine: check for scratches, dents, flaking of the coating, loose bolts and any areas where the IBC moves. Minor localised damage is easy to fix, but if it remains hidden beneath a load of salt or manure, rust will spread beneath the coating and the repair will become more labour-intensive. If you’re looking for a practical maintenance routine, you might find the following article useful: Maintenance and inspections.

Finally: if you’re handling preservatives or liquid fertilisers at work, treat splashes as a “stress test” for the coating. The quicker the splashes are rinsed off and the better the rack’s design directs liquids away from the surfaces, the less the coating is exposed. If you choose the right materials and surface treatment for your IBC container rack and maintain it as part of your routine, the rack will serve you safely and reliably, season after season.