The innovative techniques and paints used by Riva Tecnoimpianti shield the metal piece from any risk due to the action of climatic agents, especially the risk of corrosion. Let’s see what painting techniques are used and how to choose the paints.
The importance of painting in metalworking
Since 1968, Riva Tecnoimpianti has been professionally engaged in metalworking, providing customers with state-of-the-art machinery and skilled personnel.
Many processing phases and treatments are planned to achieve the desired product. Among these, painting is particularly important, essential to protect the object from any risk of deterioration and poor resistance. Painting creates a protective layer on the metal surface to prevent physical contact between the metal itself and the corrosive environment. It is a type of passive protection that involves the use of specific paints suitable for the purpose. Painting is the most commonly used technique not only for its excellent performance but also for its ease of application and relatively low cost. It can be done using various techniques, including powder coating and liquid painting.
Powder coating and liquid painting
One key difference between the two painting techniques concerns their application fields. Powder coating has been introduced only in recent years and can only be used in an industrial plant, while liquid painting is used in multiple contexts such as painting car bodies and metal structures for construction purposes.
There is also a clear differentiation, especially regarding the types of metals on which they are applied. Delving deeper, powder coating requires less metal thickness. If this constraint is met, the final result effectively protects the metal surface, especially against impacts and scratches. It’s worth noting that powder coating, for aesthetic purposes, offers greater uniformity and consistency in application, making it preferable even when the protective power of the metal is equal. Moreover, it’s optimal concerning perfect cross-linking and therefore drying, especially when used in a supervised and controlled automatic system.
Of course, there are also advantages to using liquid painting, primarily its flexibility, allowing it to be used for various purposes. Unlike powder coating, liquid painting can be performed on-site provided the right atmospheric and safety conditions are met. If humidity levels and temperatures were to fall outside the acceptable range, the final result could suffer, both in terms of protective capability and aesthetic appeal.
How Riva Tecnoimpianti chooses painting techniques and paints
Riva Tecnoimpianti’s main goal is to meet customer expectations by offering a service of absolute quality for a precise and reliable final product. This is why utmost attention is paid to all stages of work, including painting. The choice of technique is not predetermined but based on the environmental corrosion class.
In practice, the final result will be contextualized according to the location or area where the piece will be used and installed. Moreover, the durability of painting also depends on the application environment and can range from a minimum of 2 years to over 15 years. Clearly, if environmental conditions are optimal, the painting will last longer and the metal surface will be adequately protected. In some cases, an optimum result of around 25 years’ duration can be achieved. It’s also worth noting that when combined with a zinc coating, painting yields significantly better results, far exceeding the durability terms.
Choosing the best paints for metalworking
Paints are chosen according to the technique being used. Powder coating involves a dry approach, where paints consist of colored powder and thermosetting resin. The application on the surface is carried out with an electrostatic gun to optimize protection.
In this way, the paint, or rather the powder, adheres to the metal after passing through a baking oven to create a sufficiently thick and resistant layer. The approach is different concerning liquid painting, which is more flexible and can be used in any context. Regarding the metalworking sector, it is essential to carefully choose the paint, considering current safety regulations to ensure the best possible durability.
For liquid techniques, water-based products can also be used, which are particularly appreciated as they limit the use of toxic and chemical substances while ensuring consistently high performance. The paints used by Riva Tecnoimpianti protect the environment and people’s health and are efficient in safeguarding the surface from any risks.
