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Standards

IP TESTING

SPECTROMETERS

OPTI PROBES

LED TESTING

GONIOMETERS

OPTI LIGHTS

PERIPHERALS

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MESH FOIL

Mesh Foil for window shielding 9000 – 9300

Using Mesh foil is the easiest way to create transparent EMI/RFI-shielded windows.
You can shield existing standard displays, glass, acrylic, polycarbonate and PMMA windows yourself.

Description

What is Mesh foil?

Mesh foil is a very fine, electrically conductive wire mesh laminated between two layers of scratch-resistant transparent foil. The wires are so fine that they can hardly be seen with the naked eye. The product is very strong but it still bends easily.

It is easy to apply Mesh foil onto glass, acrylic and polycarbonate, either by hand or with a laminator. It can be supplied with or without self-adhesive.

The foil can be made with flying mesh on the sides or around the foil. This means that a part of the very fine wire mesh is not covered in transparent foil. The exposed edges of wire mesh can be used to create an electrical connection with your enclosure. Alternatively a conductive or non-conductive adhesive can be provided along the edges or there can be a silver busbar around the circumference.

Maximum sheet/roll width 1020 mm.

Mesh foil flying mesh sides roll
Mesh foil with flying mesh on the sides, on a roll

Standard wire-mesh material

Metallized copper (i.e. copper with a coating of nickel)
It has a dark gray colour and is not shiny.

Options (on request)

  • Stainless steel wire mesh
  • Blackened copper wire mesh
  • Phosphorus bronze wire mesh

Mesh foil applications

  • Shielding displays
  • Shielding windows
  • Shielding touch screens
  • Shielding monitors
  • Shielding LCD screens
  • TEMPEST shielding

Wire-mesh angle

Mesh foil Moiré effect
Mesh foil with moiré effect
Mesh foil without Moiré effect
Mesh foil without moiré effect
  • The wire mesh can be placed at a custom angle to prevent the moiré effect on your display (standard is 0 degrees).
  • A custom wire-mesh angle is only available with sheet styles 1 and 5
Meshfoil custom angle
Mesh foil at custom angle

NOTE: For LCD displays, 17°, 35° or 45° are used typically. We recommend that you request a sample of the product to determine the proper angle of the wire mesh for your application.

Mesh foil with or without self-adhesive

  • Mesh foil is available with or without transparent self-adhesive.
    This is used to attach the Mesh foil to any existing window or display.
Meshfoil with without self adhesive
Mesh foil with or without self-adhesive

Mesh foil sheet styles (underlined sheet styles are most commonly used)

Mesh foil with or without flying mesh

Standard mesh foil sheet style 1
Sheet style 1 (standard Mesh foil)
Mesh foil laminated between two layers of plastic.
Available with or without a transparent self-adhesive layer.

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Mesh foil flying mesh top bottom sheet style 2
Sheet style 2
Mesh foil with flying mesh, laminated between two layers of plastic.
At the top and the bottom of the mesh foil there is an exposed
strip of wire mesh to make a connection with your enclosure.

Mesh foil flying mesh all around sheet style 3
Sheet style 3
Mesh foil with a 3-4 mm flying mesh all around, laminated between two layers of plastic.
Around the mesh foil there is an exposed strip of wire mesh to make a connection with your enclosure.

Mesh foil with a silver busbar

Mesh foil silver busbar top bottom sheet style 4
Sheet style 4
Mesh foil with 3-4 mm silver busbar, laminated between two layers of plastic.
At the top and the bottom of the mesh foil there is a silver strip (busbar) to make a perfect electrical connection with your enclosure.

Mesh foil silver bushbar all around sheet style 5
Sheet style 5
Mesh foil with a 3-4 mm flying mesh, laminated between two layers of plastic.
On all sides of the mesh foil there is a silver strip (busbar) to make a perfect electrical connection with your enclosure.

Mesh foil silver busbar sides flying mesh top bottom sheet style 6
Sheet style 6
Mesh foil with 3-4 mm silver busbar at sides and flying mesh, laminated between two plastic layers.
On the left and right side of the mesh foil there is a silver strip (busbar) to make a perfect electrical connection with your enclosure.

Mesh foil mounting examples

Mesh foil mounting conductive glue
Mounting example 1
Mesh foil mounted with Conductive glue 3980 series

Mesh foil mounting conductive tape
Mounting example 2
Mesh foil mounted with Conductive tape 3201

Mesh foil mounting clamping construction
Mounting example 3
Mesh foil mounted in a clamping construction

Mesh foil mounting clamping construction EMI IP gasket
Mounting example 4
Standard Mesh foil mounted in a clamping construction with an EMI gasket. A water seal is possible here.

Technical details and shielding performance

Shielding performance up to 100 dB between 10 kHz and 30 GHz.

Type (wires/inch) 100
Wire diameter (mm) 0.050
Nominal aperture (mm) 0.204
Light transmission % 64.5
Field type Frequency dB
H 10 kHz 22
H 100 kHz 23
H 1000 kHz 29
E 1 MHz 105
E 10 MHz 98
E 100 MHz 90
P 1 GHz 70
P 10 GHz 45
These values are measured under laboratory conditions.
In other situations, results may differ; please read our Guarantee.

*Mesh foil 100 OPI is our standard Mesh foil. We can also deliver 250 OPI on request.

 

Standard available widths

We have mesh foil in standard widths of stock. The standard widths are 10, 20, 30, 40, 50, 100, 200, 250, 500 and 1000 mm. Any other width/size can be produced within days.

Turnkey windows

If you are interested in ready-made mesh-foil windows, please take a look at our 9700 series EMI/RFI shielded mesh-foil windows. Here the mesh foil is bonded between two layers of glass or plastic, or a single layer of mesh foil is fixed onto one side of a single glass or plastic window.

NEW Micro Suction Silicone adhesive

For easy manual application of the foil we have developed a new Micro Suction Silicone adhesive. This adhesive has a number of advantages that make the film easy to position. Our advise is to use standard adhesive only for laminating machines or very very experienced people. For all else use this new Micro Suction Silicone Adhesive

Benefits

  • Reusable / Repositionable
  • Never attach permanently
  • Easy to apply by hand, less bubbly

Please note : Mesh foil with Micro Suction Silicone adhesive has a thickness of 450 micron / 0.45 mm.

Please note: the top layer can be affected by acids, for example from human skin. To protect the conductive layer, you can apply a transparent film or you can have the adhesive side facing out. Max. working temperature 60 ºC.

Small optical defects are expected to occur with this product. If you require a product that has absolutely no optical defects, please contact us for the “superior selected quality”. Do please realize that due to the extreme care needed to manufacture these products, they can be several times more expensive.

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