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Why is Rubber a Good Insulator?

Science has taught us that rubber is a good insulator of heat and electricity – making it ideal for preventing exposure in either circumstance - but what is the actual reason behind its insulating efficiency?

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What is an insulator?

An insulator is a material that limits the transfer of heat or electricity. With high resistance to the flow of electrons, an insulator is typically used to protect against the threatening effects of electricity and heat.

What are the properties of rubber?

Elasticity, resistance to water and electrical insulation are the most common benefits that are afforded by the properties of rubber. Electrons in rubber molecules are tightly bound and usually require a lot of energy to break apart.

What makes rubber a good insulator of electricity?

In either its natural or synthetic form, rubber has been used as an insulator since 1870.

The tightly bound electrons are not free to be shared by neighbouring atoms. The properties of rubber also cause the electrons to slow down and eventually prevent them from moving at all.

Keeping electricity bound within the material is the main goal of an insulator – making rubber a very good choice, especially in the form of electrical mats.

Why use electrical mats?

Without the proper safety equipment, such as electrical mats, workers are at risk of electrocution while performing their duties. Workplaces should be suitably equipped with the appropriate materials for a safe working environment.

Where to get high-quality rubber

For all your rubber product requirements, look no further than Coruba! Our extensive range of reliable rubber solutions is suitable for various workplace environments. For enquiries, phone us on 01702 560194 or contact us.


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