ASG offers a wide range of materials in roll form, thanks to a vast network of suppliers and material manufacturers, some of which are needed for specific applications. One such range of products on offer from our vast catalogue is RFI/EMI/EMC roll materials, which consists of a varied choice of material types each with its own unique properties to meet particular application demands and levels of insulation. Each type of RFI/EMI/EMC material is manufactured using different processes and formations of fibres/papers/polymers etc. Some of the more rigid materials are manufactured in sheet form, in a range of thicknesses, whereas some of the very thin papers or films are manufactured in rolls, which can be cut down to a sheet size of your choice.


What are RFI/EMI/EMC Rolls?

RFI/EMI/EMC materials are designed to protect electronic devices from disturbances from RFI (radio frequency interference) and EMI (electromagnetic interference) and also to insulate devices ensuring they aren’t causing the interference. ASG can offer a range of products from this material either in pre-cut parts or as complete rolls of material so customers or end-users can cut down into sheets, strips, gaskets, pads or washers as and when they’re needed.


Why use RFI/EMI/EMC Rolls?

All electronic devices can generate electromagnetic or radiation interference (RFI-Radio Frequency Interference and EMI-Electromagnetic Interference), these interferences can cause disturbances within electronic devices resulting in a reduction in the effectiveness of the circuit within the device. Electromagnetic Compatibility (EMC) is the term used to measure a device’s ability to operate within its environment whilst not affecting the operation of other equipment within its surroundings. Using RFI/EMI materials within electrical devices, create a shield and therefore reduce the risk of interference.


RFI/EMI/EMC Shielding Products Available

When choosing Advanced Seals & Gaskets Ltd for your gasket needs, you are sure to be offered a number of material options, thanks to our network of material manufacturers and suppliers – Our most popular include:

Conductive Fabric is a polyester or nylon fabric that can be nickel/copper or silver-plated to create a highly conductive material. This fabric is wrapped around a sponge core and formed into usable profiles such as gaskets.

Conductive Silicone is produced using a silicone or fluorosilicone material that has been impregnated with electrically conductive particles prior to being cured. Conductive Silicone not only provides EMI/RFI shielding but will also act as a seal against dust and water.

Conductive Foil rolls are available in aluminium, copper and tin-plated types. These materials are used for EMI shielding and often supplied with a self -adhesive backing and cut into tapes or strips. Conductive foils are conformable and can be used for a range of applications including shielding sheet metal, shielding cables and creating shielded plastic enclosures and covers.


Benefits of Using RFI/EMI/EMC rolls

Using RFI/EMI/EMC products within electronic devices creates a shield, which in turn brings a number of benefits, these materials fill or cover gaps between conductive paths ensuring a smooth flow of current. They also prevent electromagnetic waves internal and external from interfering with devices and circuits. RFI/EMI/EMC material shielding properties also allow for a number of electrical devices to operate correctly even in the presence of each other as the Radio Frequency Interference and Electromagnetic Interference levels are controlled.