EMC-IP gasket with controlled compression stops for EMI and EMP protection
This gasket is used for screwed connections for EMI and EMP protection. The water seal is made out of flame retardant neoprene foam. In the water seal are not only holes for bolts but also holes to make the foam more easy to compress. This makes it so that it can be used to screw thinner plates together without bending.
Around the bolt holes are compression stops to prevent the gasket overstretches. This makes it possible so that with a torque control the gasket is under exactly the right stress for water and EMI sealing during mounting. The bolt holes can be made at any distance. The compression stops can be out of metal or plastic. The thickness and width can change as well as the reduction of the compression force, without influence on the shielding capacities.
Technical drawing
Knitted mesh core
The core of the knitted mesh material can be made in:
Neoprene foam (base material)
The base material of the gasket is made of neoprene that can be ordered in different widths and lengths. The thicknes of the foam can be ordered in: 1, 2, 3, 4, 5, 6, 7, 8, 10 and 12 mm.
Knitted mesh Shielding performance
■Monel (H field) |
■Monel (E field + P field) |
■Aluminium (H field) |
■Aluminium (E field + P field) |
■TCS (H field) |
■TCS (E field + P field) |
■S/Steel (H field) |
■S/Steel (E field + P field) |
Please note: These values are measured under laboratory conditions. Results may vary in other situations; please read our Guarantee.
Round core
| D (mm) or D x d (mm) | ||
| 1.6 | 4.8 x 3.2 | 9.5 x 6.4 |
| 2.4 | 6.4 | 11.1 |
| 3.2 | 6.4 x 3.2 | 11.1 x 8.0 |
| 3.2 x 1.6 | 7.9 | 12.7 |
| 4.0 | 8.0 x 4.8 | 12.7 x 9.5 |
| 4.8 | 9.5 | 14.9 x 11.1 |
Rectangular & square
| W x H (mm) | ||
| 3.2 x 1.6 | 9.5 x 3.2 | 19.1 x 12.7 |
| 3.2 x 2.4 | 9.5 x 4.8 | 20 x 6 |
| 3.2 x 3.2 | 9.5 x 6.4 | 20 x 8 |
| 4.0 x 3.2 | 12.7 x 6.4 | 20 x 10 |
| 4.8 x 2.4 | 12.7 x 9.5 | 20 x 12 |
| 4.8 x 3.2 | 12.7 x 12.7 | 20 x 20 |
| 4.8 x 4.8 | 15 x 6 | 25 x 6 |
| 6.4 x 1.6 | 15 x 8 | 25 x 8 |
| 6.4 x 2.4 | 15 x 10 | 25 x 10 |
| 6.4 x 3.2 | 15 x 12 | 25 x 12 |
| 6.4 x 4.8 | 15 x 15 | 25 x 18 |
| 6.4 x 6.4 | 15.9 x 9.5 | 25 x 20 |
If you send us a drawing, please include the dimensions shown above. For a inquiry send a email to info@japanhomeland-security.jp
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