Electrical Insulation

Electrical Insulation Strip

Advanced Seals & Gaskets Ltd manufacture 1000’s of strips on a daily basis from a variety of materials including specialist types used in applications requiring resistance to extreme temperatures and harsh chemicals. One such range of products on offer from our vast catalogue are electrical insulation strips, also recognised as insulation tapes, isolation strips or electrical tape, which consists of various grades each with different properties at varying levels to meet particular application demands. Electrical insulation strips are all made to order, manufactured by our highly skilled workforce, using state of the art machinery including band saws, strippers, log cutters and even presses depending upon the size and quantity required. In-house production allows us to closely oversee the whole production process to ensure that we consistently produce high quality, competitively priced strips. 


What are Electrical Insulation Strips?

Strips are pieces of material often cut to a specific width and length as requested by our customers, in some cases available as continuous rolls/coils to be cut as when needed by the end-user. Electrical insulation strips are used for sealing and insulating electrical applications. Electrical insulation strips are used to restrict the flow of electric current, by supporting electrical conductors – without allowing the current to pass through.  


Why use Electrical Insulation Strips?

Electrical insulation strips are used to do just that – insulate! They provide a barrier to restrict the flow of electrical current, protecting electrical conductors from coming into contact with people or tools during installation, repairs or when an electrical appliance or device is being used. Electrical insulation strips also prevent electrical arcing (electrical current flows through the air between two conductors as a result of the electrical breakdown of a gas that produces an ongoing electrical discharge), when the electrical insulation fails, it can lead to an electrical device not work properly if at all and also become a health and safety risk for those using the appliance. Applications that utilise electrical insulation strips and materials include power generations, transformers, engine seals within the automotive industry, electrical equipment and appliances and cable insulation.


Types of Electrical Insulation Strip Available 

Advanced Seals & Gaskets work with a multitude of material manufacturers, giving our customers more choice when looking for electrical insulation solutions. Our most popular electrical insulation strip materials include:

Epoxy Glass – a green coloured material with good mechanical strength, good chemical, electrical and radiation resistance, low moisture absorption and a working temperature range of up to +120℃.

Kapton – is a polyamide film that offers a combination of mechanical and tears strength along with chemical, electrical and thermal properties that enables the gasket to withstand vibration and extreme temperatures in demanding environments. 

Leatheroid – is a grey/blue coloured paper gasket material, also sometimes called Elephantidae. These strips are used within the electrical industry to insulate hot elements.

MICA – is a mineral-based sheeting material that has excellent mechanical performances, is resistant to chemicals and provides electrical and therm insulation. MICA strips are often used to replace asbestos as they can withstand extremely high temperatures of up to 1000℃.  

MYLAR is an extremely strong, flexible polyester film. MYLAR is an excellent insulation material with dielectric strength, moisture resistance and is an excellent insulation material.

Nomex strips can be manufactured using Nomex paper or Nomex board, it can withstand high temperatures, has high mechanical and dielectric strength, and is an excellent insulation material for all kinds of electrical equipment and applications.

Presspahn strips are made from a brown coloured material manufactured using kraft wood pulp.  Presspahn strips have excellent physical and mechanical properties, generally used as electrical insulation.

SRBF is resin bonded fibre material that is tough and rigid, with an operating temperature of 120℃, low water absorption and is resistant to wear, impact chemicals.

SRBP (synthetic resin bonded paper) is manufactured using layers of paper and synthetic resins.  This material is suited to high and medium voltage application.  SRBP has good mechanical and excellent electrical insulation properties, with low water absorption.

Valox is an excellent electrical insulation material that also offers flame retardant properties.

PTFE  is a non-conductive plastic material used to produce electrical insulation strips. PTFE strips are suitable for high-temperature applications and have a high melting temperature. This material has excellent dielectric properties and can be often found used in circuit boards.

PVC is a tough, lightweight abrasion-resistant material that has good dielectric strength making it a great material to use for electrical insulation strips.


Benefits of Using Electrical Insulation Strips

Advanced Seals & Gaskets Ltd offer electrical insulation strips and tapes in a range of materials, thicknesses, colours and finishes. Each material will provide insulation within certain applications and suitable for various levels of protection required ensuring the electrical goods work and are safe to use. Electrical insulation strips prevent wires from touching, preventing short circuits, electric shocks and fires. They can offer excellent mechanical strength to cope with physical wear and stresses whilst their dielectric features ensure an even, safe level of current flow. Some of the materials listed above are available in variants that can offer additional properties such as flame retardancy and higher chemical or temperature resistance for use in the most extreme environments.