Radiansa supplies shielding and insulating materials to protect against electromagnetic fields.
We offer materials for shielding low-frequency magnetic and electric fields generated by transformers, electrical substations, high-voltage lines and electrical equipment. These materials are made from metal alloys with special magnetic properties and provide high shielding effectiveness against low-frequency electromagnetic fields. We also supply materials for shielding high-frequency electromagnetic radiation generated by telecommunications systems.
The G-iron ArmoFlex magnetic shielding system is particularly suitable for installation on walls and ceilings. It is used in a wide range of architectural applications, both to protect people and to prevent electromagnetic interference, for example:
The G-iron ArmoFlex magnetic shielding system is based on a special high-permeability magnetic alloy sealed within an aluminium sleeve. This design delivers strong magnetic protection, excellent effectiveness against high-frequency electromagnetic radiation and is fire-resistant.
ArmoFlex is based on the earlier industrial-standard shielding product G-iron SuperFlex, the main difference being that SuperFlex’s polypropylene sealing layer has been replaced by an aluminium layer.
The high magnetic permeability of G-iron ArmoFlex diverts magnetic field lines away from the space to be protected, providing a “low-resistance path” for the magnetic field.
The G-iron ArmoFlex shielding system is installed directly on brick or concrete walls, with no need for any additional metal structure to support the shielding material.
G-iron ArmoFlex is the most suitable solution to ensure compliance with regulation RD 1066/2001 on exposure to electromagnetic fields generated by transformer stations.
To increase shielding performance in demanding projects, a 3 mm thick aluminium plate can be added. The high electrical conductivity of aluminium helps minimise the residual magnetic field thanks to the cancellation effect generated by eddy currents induced in the metal.
The following graph shows the shielding effectiveness of G-iron ArmoFlex with one layer and with two layers.
To request prices, ask for a quotation or for any other questions about our electromagnetic shielding materials, please get in touch:
See G-iron in the online store
To shield high-frequency electromagnetic radiation generated by telecommunications antennas, conductive materials are used to reflect the electromagnetic waves.
When connected to an earthing point, these materials can also shield the electric component of low-frequency electromagnetic fields.
However, these materials do not affect the magnetic component of low-frequency fields; to shield this component, the G-iron system described above is required.
Metallised fabrics are flexible materials that adapt to many applications. They are particularly suitable for building Faraday cages, making anti-interference curtains, lining containers and other uses.
Using metallised fabrics allows the shielding material to be fixed directly on brick, concrete, plaster and other materials with dispersion glue or other fixing systems, depending on the needs of the project.
HNG100 is a compact polyester fabric metallised with copper and nickel, designed for professional use in applications that require high shielding effectiveness against high-frequency electromagnetic radiation.
Thanks to its high metal content, HNG100 maintains shielding effectiveness up to 100 dB, even at frequencies of several GHz. HNG100 is ideal for building Faraday cages within existing rooms.
The fabric also has surface conductivity and can be easily connected to an earthing point.
See HNG100 in the online store
In new builds or refurbishments, a conductive mesh can be incorporated into walls, ceilings or floors to shield electromagnetic waves.
These meshes can also be used on outdoor surfaces, for example on building roofs, and can be fixed to structures and balcony or terrace railings to shield outdoor spaces.
Shielding meshes are fixed to walls using any anchoring system suitable for the specific surface. They are commonly installed on brick walls with industrial staples. After being placed on walls or floors, the meshes can be covered with drywall or with floor finishes such as parquet; they can also be sealed within a layer of concrete or plaster, and tiles can then be laid on top.
For outdoor installations such as roofs or terraces, it is recommended to protect the mesh against possible damage. To do this, it can be covered with asphalt or another waterproofing system, such as tiles or cement. Adjacent mesh sections should overlap by a few centimetres to avoid “gaps” in the shielding.
Made from 316 stainless steel, the meshes offer high resistance to corrosion and moisture.
We offer two types of metal mesh suitable for shielding projects:
See shielding meshes in the online store
Electromagnetic fields:
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