Materiais isolantes de eletricidade

Electric insulating materials

Here at Geartech BR, we work with several products that serve as insulating materials for electricity. Our customers are resellers, manufacturers of electric motors, transformers, cables, compressors, fans, etc.

In this article we want to talk specifically about electrical insulating materials. Read on!

Regarding insulating materials in general (not just electricity insulators), we can say that they are those that reduce, resist or completely prevent the passage of any type of energy such as heat or electricity.

They serve to protect people and living beings in general, food and other objects from the elements and their conditions, such as the plastic covering of cables and the walls or ceilings of houses.

For insulating materials to be effective, they mainly need a low thermal conductivity to reduce heat transfer. They must also have a high resistance to very high temperatures to prevent them from melting.

Another very important feature is also the air permeability of thermal insulation. They must be materials where air can flow through your pores. Good thermal insulators have a high permeability to air, since it is an insulating substance in itself.

This permeability must not allow the passage of steam or moisture, in order to avoid or minimize condensation of liquids or corrosion of materials. The best thermal insulators have very low permeability to steam and moisture.

The insulating material must be resistant to water, solvents and chemicals. It must also be durable and not lose its efficiency in a short time. It must be easy to install, non-flammable, not absorb odors and not attract fungi or worms.

These are the characteristics of insulating materials in general. We will now talk about insulating materials for electricity.

Examples of electricity insulating materials

Examples of electricity insulating materials

We will now cite some examples of insulating materials for electricity. Most of them you already know and maybe even already know that they are insulators of electricity. However, even so we will quote them and talk a little about each one.

Wood: Wood is an insulating material for electricity and you can still find in some cities (maybe even yours) lampposts made of wood. However, it should be noted that it is not insulating while the wood is wet, since the water is conductive of electricity.

Rubber: This material, in addition to being highly moldable, flexible and resistant, is perfect to avoid conducting electricity. For example, professionals who work directly with electricity use PPE’s like rubber boots and gloves to preserve their safety. Without a doubt, one of the best insulating materials for electricity that we currently have.

Ceramics: A material that restricts ionic and electronic mobility, therefore, it is a non-conductive material for electricity. This makes it ideal for making high voltage discs.

Silicone: This widely used material has, among other capabilities, the insulation of electricity. This makes it ideal for sealing electronic components and securing components.

Aluminum oxide: As a non-conductive material, aluminum oxide is perfect for manufacturing temperatures or electrical insulators, laser tubes or sealing rings.

These are some examples of electricity insulating materials and their functions. To learn more about Gertech BR and our products, contact us. We are at your disposal!


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