L-shaped gasket 7500 series

L-shaped EMI/RFI-shielding gasket with water seal (IP seal) for thin doors and lids

L-shaped gasket 7500 series

Holland Shielding Systems B.V. has developed this L-shaped gasket as an efficient combined seal for doors and lids. The L-shaped gasket is used to achieve two goals at the same time: a water seal and an EMI seal.

This L-shaped gasket is made from a solid piece of neoprene foam. One side has been laminated with conductive textile (the conductive side) and the other side is uncovered neoprene which provides a water seal.

The flange of the door will compress the water-seal side of the gasket with very little force to assure a watertight seal.

The electrically conductive part on the other side of the gasket establishes an electrical connection between the door frame and the leaf of the door.

L-shape EMI / RFI shielding gasket in a closed construction
L-shaped EMI / RFI-shielding gasket in a closed construction

The picture above shows a closed lid with the gasket mounted on the inside of the lid. Please see the video to the right for more information.

The gasket creates a perfectly airtight closure and at the same time it makes electrical contact on the inside of the housing. The electrical contact remains free of water and dust.

L-shaped EMI / RFI-shielding gasket in small dimensions

The gasket can be supplied in virtually any size.
Please specify the size you are looking for by email, or use the contact form on the left side of this webpage.

L-shape EMI / RFI shielding gasket mounted in a lid
L-shaped EMI / RFI-shielding gasket mounted to a lid

In the picture above you can see how the gasket can be mounted on the inside of the lid. The L-shaped EMI / RFI-shielding gasket can be mounted with a self-adhesive that can optionally be conductive.

When the lid is closed, the electrical contact is shielded from water and dust.

L-shape EMI/RFI shielding gasket
L-shaped EMI/RFI-shielding gasket


technical drawing
Technical drawing L-shape
  • Bends easily around sharp corners without interrupting the water seal
  • Excellent water sealing up to IP65 (depending on construction)
  • Easily mounted with a self-adhesive strip
  • Easy to use for small doors and lids
  • Low closure force to prevent bending of doors and lids
  • Roll lengths of 1 to 1000 meters, depending on width and height of the gasket
  • Tools required: a pair of scissors

Options (on request)

  • Custom made in the dimensions you need
  • Available in flame-retardant version
  • Available with conductive self-afhesive
  • Available with chemical-resistant rubbers like EPDM
  • Silicone sponge for high temperatures up to 220 °C
  • Various conductive foils and fabrics
  • Cut into accurate lengths
  • In the shape of a ready-made frame

Standard dimensions

7500 L-shape gasket type A
Type A: 2 mm waterseal and 2 mm conductive layer on the bottom; flange height can be specified
7500 L-shape gasket type B
Type B: 3 mm waterseal and 3 mm conductive layer on the bottom; flange height can be specified
7500 L-shape gasket type C
Type C: 4 mm waterseal and 4 mm conductive layer on the bottom; flange height can be specified
Type D (Cutstom made)
Flange height Y Type A Type B Type C
(mm) Small Medium Large
Part number
3 7503-S    
4 7504-S 7504-M  
6 7506-S 7506-M  
8 7508-S 7508-M 7508-L
10 7510-S 7510-M 7510-L
12 7512-S 7512-M 7512-L
14 7514-S 7514-M 7514-L
16 7516-S   7516-L
18 7518-S   7518-L
20 7520-S   7520-L

* If a different size is required, please feel free to send your drawings by email to [email protected]

Shielding performance

Shielding performance
Frequency Hz Mode Screening in dB
1 Mhz E 121 dB
10 Mhz E 110 dB
100 Mhz E 103 dB
400 Mhz E 98 dB
1 Ghz P 93 dB
10 Ghz P 90 dB
These values are measured under laboratory conditions.
In other situations results may differ; please read our Guarantee.


Would you like to...

To get a quotation for L-shape gaskets within 24 hours fill in the form below.

Select an option:
S : Small (2 mm)
M : Medium (3 mm)
L : Large (4 mm) Other on request
D : Custom made (Please send you drawing)
Specify the flange height in mm.
Select an option:
T : Conductive textile
A : Amucor foil
* Note: The red blocks are required
Acceptable file extensions (preferred a PDF file)
.ai, .bmp, .cad, .doc, .docx, .dwf, .dwg, .dxf, .dxt, .eps, .gif, .icd, .idw, .ipn, .ipt, .jpeg, .jpg, .pdf, .png, .ppt, .pptx, .psd, .rar, .step, .svg, .tif, .tiff, .xls, .xlsx, .zip
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