Labels for PCB (printed circuit board)

The labelling requirements for PCBs, known as printed circuit boards, are hugely varied. This is because virtually all production stages are traced, and at each stage there are different types of conditions that a modern label must withstand.

In this case, we are dealing with extremely high temperatures, galvanisation, furnace and wave soldering, extremely corrosive cleaning chemicals and the effects of water. After all these treatments, the label must not only look impeccable, but above all remain clearly legible, as it contains important data about the component it covers.

With the appropriate labelling, PCBs can be processed properly without the risk of damage and being unable to determine which component is involved. Ideally selected PCB labels support ongoing production control and significantly minimise costs associated with production waste.

PCBs are most often marked with one of two types of labels:

• Polyamide labels – these are often referred to as labels for special purposes, as they are extremely resistant to high temperatures (withstanding up to +398 degrees Celsius). They can therefore be widely used for processing where extreme heat is involved. Labels made from polyamide can withstand processes such as wave or furnace soldering, galvanisation, powder coating, degreasing and cleaning with powerful detergents. They are also resistant to UV radiation and the effects of water and abrasion. Such labels will perfectly resist all the activities taking place in the manufacturing and processing of PCB, while still looking impeccable with perfectly legible characters.
•  ESD polyester labels –their purpose is to protect the printed circuit boards on which they are applied from the effects of electrostatic charges, which are generated each time both during the application of the labels and their subsequent use. ESD labels are designed to disperse the resulting electrostatic charges as quickly as possible (before they adversely affect the component). Due to the properties of the polyester itself, these labels are resistant to solvents, battery acid, ethanol, petrol and butanol. They also show increased resistance to mechanical damage, which can occur both during use and, obviously, during transport or assembly of the components labelled with them.

In Libeli, labels for marking PCBs are available in various roll sizes, which can be printed independently using any type of label printer. Alternatively, of course, it is also possible to have them printed directly on our premises based on the specifications you submit.