In the metalworking industry, the correct application of a coating or protective coating is essential for achieving surface quality, production continuity and effective material protection. Even a technical solution formulated to withstand high temperatures and demanding process conditions may lose its effectiveness if applied incorrectly. For this reason, understanding the most common mistakes in the application of industrial coatings is crucial for reducing scrap, defects and inefficiencies.
ATP Europe offers a range of specific solutions for different applications. These products are developed to protect, lubricate or identify metals and other surfaces across various industrial sectors, including forging, heat treatments, foundries, the aerospace industry and the processing of titanium alloys.
Why Is Correct Protective Coating Application So Important?
When assessing the performance of an industrial coating, attention is often focused on the product formulation and much less on how it is applied. In reality, the application stage determines whether the product will actually be able to perform its intended function. A poorly applied coating may compromise the protection of the metal against oxidation, decarburisation, wear and surface alterations, cancelling out the benefits of the selected solution.
This is even more important in high-temperature processes, where protective coatings must operate under demanding conditions while maintaining stability, uniformity and adhesion. A seemingly minor mistake, such as an inadequately cleaned surface or uneven coating thickness, may cause visible problems on the finished component or create inefficiencies that affect the entire production process.
Surface Preparation: The First Mistake to Avoid
The most common and frequently underestimated mistake concerns surface preparation. Before the application of a coating or protective coating, the substrate must be clean, uniform and free from contaminants. Oils, grease, dust, oxides and processing residues can interfere with product adhesion and compromise the final result.
A poorly prepared surface may cause peeling, uneven coverage and areas in which the coating fails to perform its intended function correctly. In applications such as forging or heat treatments, this problem may result in surface defects, incomplete protection and increased wear of equipment and components.
To avoid this mistake, it is important to check:
- that the component has been thoroughly cleaned before application
- that there are no oily residues or solid particles
- that the surface is uniform
- that the substrate is compatible with the selected coating
Second Mistake: Using the Right Product in the Wrong Process
Not all industrial coatings are designed to perform the same function. One of the most common mistakes is treating products as interchangeable when they actually address very different requirements. This results in ineffective applications, performance below expectations and recurring production problems.
ATP Europe’s product categories clearly illustrate these differences. Protective coatings for metals are applied before heating in processes such as rolling, forging, annealing and other heat treatments. Stop-Off coatings for metal surfaces, on the other hand, are designed to control the surface hardening of ferrous metals during heat treatment. Water-based forging lubricants are formulated to protect, insulate and lubricate during forging and other hot-working processes. Borosilicate glass for extrusion is specifically designed to protect and lubricate metals during hot extrusion. Boron Nitride coatings are intended for the protection and lubrication of a wide range of materials, while the range of metal marking paints is used to provide clear component identification at both high and low temperatures.
In other words, selecting the correct protective coating is the first step towards avoiding application mistakes. Even an excellent product may deliver disappointing results if used in an unsuitable context.
Third Mistake: Choosing an Unsuitable Application Method
Another recurring mistake concerns the application method. The most effective technique for achieving uniformity and complete coverage varies depending on the component, process and product. Applying a coating using an unsuitable technique may result in uneven thickness, material build-up in certain areas and insufficient coverage in others. This is particularly important when working with complex components or surfaces that require precision. A poorly controlled application may lead to product waste, longer processing times and inconsistent results from one batch to another.
To improve the quality of the result, it is essential to standardise the application method and verify its effectiveness according to:
- component geometry
- type of process
- operating temperature
- the function required from the coating
Incorrect Industrial Coating Thickness: The Fourth Common Mistake
Thickness is one of the most critical parameters when applying a protective coating. A layer that is too thin may not protect the material adequately, while an excessively thick layer may cause adhesion problems, cracks, peeling or imperfections during the thermal cycle. This mistake is common because it is often assumed that “more product” automatically means “greater protection”. In reality, every coating performs best within specific parameters. When these are not respected, both the protective function and the final quality of the component may be compromised.
Controlling coating thickness therefore improves process consistency, limits waste and increases the reliability of the final result.
Overlooking Environmental Conditions: The Fifth Mistake
Another common mistake concerns the environment in which the coating is applied. Humidity, dust, ventilation and temperature may influence product behaviour from the earliest stages. If these variables are not controlled, the result may be less stable and less uniform. In industrial environments, attention is often focused on the product and the equipment, while the impact of the working environment on final quality is overlooked. Application under unsuitable conditions may increase the risk of surface contamination or alter the drying and distribution of the coating.
The Sixth Problem: Lack of Process Standardisation
Many application problems are not caused by a single technical mistake, but by the lack of a precise and repeatable method. If each operator applies the product slightly differently, or if parameters vary from one batch to another without proper control, the results become inconsistent. Standardising the process means defining clear procedures for surface preparation, application method, thickness, drying and final inspections. This approach helps reduce human error, improve quality and achieve greater production continuity.
How to Avoid the Most Common Mistakes in Industrial Coating Application
To genuinely improve the performance of an industrial coating, selecting a good product is not enough. A comprehensive understanding of the process is required. The material, type of operation, operating temperature, required function and most appropriate product category must all be considered.
ATP Europe offers a comprehensive range of water-based coatings and lubricants, marking solutions, Stop-Off products, borosilicate glass for extrusion and Boron Nitride coatings, making it possible to address a wide variety of application requirements with greater precision. The advantage lies not only in the product itself, but also in the ability to identify the solution most suited to the actual process. ATP Europe products also offer key benefits such as ease of application, customised formulations, environmental responsibility and suitability for high-temperature applications.
Relying on a Technical Partner to Choose the Right Protective Coating
Avoiding the most common mistakes in industrial coating application means improving the quality of the finished component, reducing scrap, optimising product consumption and extending the service life of tools and components. In many cases, the difference between an average result and a reliable one depends precisely on the ability to select the most suitable protective coating and apply it correctly.
If you would like to identify the solution best suited to your production process, ATP Europe can support you in choosing from the different product categories and help you determine the most appropriate approach for your specific requirements. Contact us today with no obligation. We are always available to answer your questions and clarify any doubts.