Electrical circuits, how to protect from mechanical shocks?

The resin has many uses in electricity, from protection against infiltration of liquids to protection against mechanical shocks and also protection of intellectual property. In this article, we are going to talk about synthetic resin and its use in the electrical field, come on guys!

Synthetic resin, how to use?

Protection for electrical and/or electronic circuits can be done using synthetic resin, which in addition to offering excellent protection for sensitive components, is also an electrical insulator. The hardness of the resin also guarantees protection against theft of intellectual property, since a circuit protected by resin will hardly be copied because to remove the resin, the chances of damaging the circuit are very high.

The synthetic resin used for circuit protection can be manufactured with several different hardnesses and textures, so its stiffness can vary a lot and this is something that must be observed when choosing the resin. In the image below, you can see a connected lamp immersed in an aquarium, showing how the resin really protects the components from liquid infiltration. This experiment was carried out by the Mundo da Elétrica channel, it is worth checking out this video!

See how the synthetic resin protects the circuits against the infiltration of liquids!

Synthetic resin, how to choose?

As already mentioned, there are several textures of resins, some can be as soft as foam, others can have a more gelatinous consistency and there are those that are hard as stone. Therefore, the choice of resin should not happen for the lowest price, but for the purpose and use.

In the sequence of the article, we will show other functions of the use of the resin, the main one being without a doubt the protection against mechanical shocks. There are electrical and electronic components that are extremely sensitive and without adequate protection, any more sudden contact could damage its functioning.

In most cases, these components and circuits are located on the internal parts of machines or appliances, usually protected by a box that can be plastic or metallic, but in some specific cases, even with this protection, there is still the possibility of damaging the components and this is where the use of resin comes in to protect them from impacts of solid particles.

We resinized an electronic circuit that we will use to test the protection against mechanical impacts, see the image below. This is a resin that has a curing time of 72 hours and for those who don’t know, the curing time represents the drying time of the resin!

See how to resin an electrical circuit

After the resin is completely dry, you can see how the circuit is completely protected, because the resin we use is very hard in texture. We use a hammer to try to break the resin of this circuit that we protect, see in the image below how the resin remains practically intact, you can see only a few marks on the hammer head.

Mechanical shocks in electrical components, how to avoid?

See the result of testing against mechanical shock on a resin circuit

This test with the hammer and all the resin preparation are in this video from the Mundo da Elétrica channel, which we will leave below. If you want to go deeper into the subject, it is worth checking out this experience in practice.

This rigidity is also widely used for the protection of intellectual property, since several companies want to prevent their circuits from being copied! In these cases, they put the resin in order to leave the components protected and inviolable, preventing the resin from being removed without breaking it. And so it is easy to understand better why many circuits have resin on some of their components or on the entire circuit.