Mica electrical insulation

From its mineral qualities, mica has a natural structural stability, which means it is frequently the perfect manufacturing solution when it comes to electrical components and other essential processing parts. These include marker dials for navigation compasses, thermal regulators, heater elements, wave plates and optical filters.

As a dielectric, mica discs retain their stability under intense heat by combining their low leakage and high insulating strength.

Elmelin provides mica electrical insulation components to order, providing essential support to the power electronics and other industries.

Electrical mica components

We manufacture mica components for the following:

  • Transistor parts – these require effective heat insulation to ensure consistent performance. Mica washers ensure heat dissipation.
  • Heating elements – for electrical insulation, mica is used extensively and is found in toasters, kettles, hair dryers and other domestic electrical appliances.
  • Cut mica discs – these shapes are used in a variety of devices and appliances, including communication devices and breathing apparatus.

This is just a snapshot of the many mica components Elmelin fabricates to order. We also hold components in stock, so, if suitable, customers can order off the shelf.

For other essential components, mica is the perfect, safe successor or substitute manufacturing material.

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Mica gaskets

With no deterioration at high temperatures and being non-combustible, phlogopite mica gaskets have cross-industry recognition for their heat resistance and functionality. They are also strong, with a formidable compressive durability.

Mica gaskets can be found in turbochargers, turbines, and exhausts, and are suitable for a range of applications in hot, dry or gaseous environments. They have heat resistance in continuous temperatures of up to approximately 800°C, but can offer resistance in the shorter term for as high as 900°C.

Elmelin manufactures mica gaskets to order.

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Mica washers

Elmelin’s mica washers have robust thermal and electrical qualities, making them ideal as insulators.

They are both heat and corrosion-resistant and can be used in many different electrical and industrial applications where thermal and electrical conductivity and insulation are key issues.

We supply mica washers in a range of sizes and can manufacture them to our customers’ specifications.

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Mica supports manufacturers

Mica’s sheer versatility makes it ideal for producing specialist components to aid manufacturing processes and solutions.

Are we the missing piece to your manufacturing puzzle? Contact Elmelin today to discuss what you need and how we can help.

Frequently Asked Questions

Why is mica ideal for electrical insulation? +

Mica is ideal for electrical insulation due to its natural dielectric properties and thermal stability. It maintains performance under extreme conditions, making it suitable for demanding electrical applications. Key benefits include: • High insulating strength with low electrical leakage • Excellent resistance to high temperatures • Dimensional stability under thermal stress • Non-combustible and chemically stable These properties allow mica components to provide reliable electrical insulation in power electronics, heating elements and other critical applications.

What role do mica components play in EV batteries? +

Mica components play a critical role in improving the safety, thermal control and electrical insulation of EV battery systems. They are commonly used for: • Electrical insulation between cells, modules and conductive parts • Thermal barriers to manage heat and prevent thermal runaway • Fire-resistant protection within battery packs • Structural insulation that maintains stability under high temperatures Mica’s non-combustible nature and ability to retain insulating strength under extreme conditions make it well-suited to the demanding environment of electric vehicle batteries.

What industries use mica components? +

Mica components are used across a wide range of industries where electrical insulation, thermal stability and fire resistance are essential. Common industries include: • Power electronics and electrical engineering • Automotive and electric vehicles • Aerospace and defence •Industrial manufacturing and processing • Domestic and commercial appliance manufacturing Mica’s versatility, durability and ability to perform under extreme conditions make it a trusted material choice for critical applications across multiple sectors.

Find out more about mica components and how they could help you solve your insulation challenge.



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