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Shield Seal Gaskets: Combo Gaskets

shield_seal_gasketingMAJR Products’ Shield Seal gaskets, also referred to as combo gaskets, are available in various material combinations and combo gasket sizes. Our mesh combo gasket materials and sizes provide assurance of protection against weather conditions, including temperature extremes, as well as against Electromagnetic Interference and Radio Frequency Interference leakage. Our standard EMI gasket materials conform to military (MIL) specifications. The elastomers (neoprene or silicone) are available with or without an adhesive backing.

The Shield Seal Strip, also known as a combo gasket or railroad gasket, is used in applications such as electronic cabinets where this type of material is utilized around the doors of the cabinet to seal off stray EMI signals. The Shield Seal Strip is also used extensively to shield electronic boxes of various sizes and shapes.
 

Features:

  • Customized Gaskets Available:  Shield Seal is often used not only in strip form, but also as custom die-cut EMI gaskets. MAJR can convert our shield seal product into almost any configuration. Contact us regarding your custom application.  
  • High Attenuation: MAJR’s tests show this shielding material is capable of over 110dB of shielding effectiveness in the E-Field and over 70 dB in the H-Field. MAJR provides state-of-the-art shielding effectiveness.
  • Protection Against Adverse Atmospheric Conditions: The various elastomer materials as provided by MAJR protect electronic equipment against moisture and dust under severe temperature variations. There is a proper elastomer for almost every condition. Special materials are available. Contact our application engineers to discuss your needs.
  • Ease of Installation With PSA Backing: MAJR’s Shield Seal material is available with an adhesive backing for ease of application. This pre-applied adhesive eliminates any danger of adhesive contamination and greatly reduces installation time.

Table 1

Shield Seal Strip:

shield_seal_gasketing_02

DIMENSIONS in inches and (millimeters) PART NUMBERS
A B C D Neo.
Sponge_
&_Monel
Silicone Sponge_&_Monel Neo. Sponge & Tin_Plated_Ferrous Silicone Sponge & Tin_Plated_Ferrous 
.062(1.57) .250(6.35) .062(1.57) .125(3.18) 1516-06038-02 1516-06038-04 1516-06038-10 1516-06038-12
.062(1.57) .375(9.53) .062(1.57) .125(3.18) 1516-06050-02 1516-06050-04 1516-06050-10 1516-06050-12
.093(2.36) .375(9.53) .093(2.36) .125(3.18) 1516-09050-02 1516-09050-04 1516-09050-10 1516-09050-12
.093(2.36) .500(12.70) .093(2.36) .125(3.18) 1516-09063-02 1516-09063-04 1516-09063-10 1516-09063-12
.125(3.18) .125(3.18) .125(3.18) .125(3.18) 1516-12025-02 1516-12025-04 1516-12025-10 1516-12025-12
.125(3.18) .188(4.78) .125(3.18) .188(4.78) 1516-00052-02 1516-00052-04 1516-00052-10 1516-00052-12
.125(3.18) .250(6.35) .125(3.18) .125(3.18) 1516-12038-02 1516-12038-04 1516-12038-10 1516-12038-12
.125(3.18) .250(6.35) .125(3.18) .250(6.35) 1516-00053-02 1516-00053-04 1516-00053-10 1516-00053-12
.125(3.18) .375(9.53) .125(3.18) .125(3.18) 1516-12050-02 1516-12050-04 1516-12050-10 1516-12050-12
.125(3.18) .625(15.88) .125(3.18) .125(3.18) 1516-12075-02 1516-12075-04 1516-12075-10 1516-12075-12
.188(4.78) .188(4.78) .188(4.78) .125(3.18) 1516-19019-02 1516-19019-04 1516-19019-10 1516-19019-12
.188(4.78) .250(6.35) .188(4.78) .125(3.18) 1516-19038-02 1516-19038-04 1516-19038-10 1516-19038-12
.188(4.78) .500(12.70) .188(4.78) .125(3.18) 1516-19063-02 1516-19063-04 1516-19063-10 1516-19063-12
.250(6.35) .250(6.35) .250(6.35) .125(3.18) 1516-25038-02 1516-25038-04 1516-25038-10 1516-25038-12
.250(6.35) .500(12.70) .250(6.35) .125(3.18) 1516-25063-02 1516-25063-04 1516-25063-10 1516-25063-12
.375(9.53) .500(12.70) .375(9.53) .250(6.35) 1516-38075-02 1516-38075-04 1516-38075-10 1516-38075-12

*All part numbers INCLUDE adhesive back.
Change 1516- to 1515- for elastomer WITHOUT pressure-sensitive adhesive.
*Other wire and elastomer types available on request.

Table 2

Double EMI Shield-Seal Strip:

shield_seal_gasketing_03

DIMENSIONS in inches and (millimeters) PART NUMBERS
A B C D Neo.
Sponge_
&_Monel
Silicone Sponge_&_Monel Neo. Sponge & Tin_Plated_Ferrous Silicone Sponge & Tin_Plated_Ferrous 
.125(3.18) .250(6.35) 125(3.18) .125(3.18) 1516-00061-02 1516-00061-04 1516-00061-10 1516-00061-12
.125(3.18) .375(9.53) .125(3.18) .125(3.18) 1516-00062-02 1516-00062-04 1516-00062-10 1516-00062-12
.125(3.18) .500(12.70) .125(3.18) .125(3.18) 1516-00063-02 1516-00063-04 1516-00063-10 1516-00063-12
.188(4.78) .500(12.70) .188(4.78) .125(3.18) 1516-00068-02 1516-00068-04 1516-00068-10 1516-00068-12

*All part numbers INCLUDE adhesive back.
Change 1516- to 1515- for elastomer WITHOUT pressure-sensitive adhesive.
*Other wire and elastomer types available on request.

 For more information on

Shield Seal Gaskets,

fill out our form or call us at 877-625-7776

Technical Information:

Shielding

The data presented in Table 1 was derived from laboratory tests performed upon EMI gaskets at MAJR. Test samples had an inside dimension of 12.00 x 12.00 inches (304.8 x 304.8 mm).

Shielding Effectiveness vs Frequency — Table 3

MONEL WIRE

Field Material Code -02-04 (MONEL WIRE)
Frequency
10kHz 100kHz 1MHz 18MHz 100MHz 400MHz 1GHz
H 40 60 80
E 110
PW 110 110 110

TIN PLATED FERROUS (FX) WIRE

Field Material Code -10-12 (FERROUS/FX WIRE)
Frequency
10kHz 100kHz 1MHz 18MHz 100MHz 400MHz 1GHz
H 65 80 95
E 110
PW 110 110 110

Compression Forces

Figure 1 shows comparative data for solid and sponge elastomers indicating pressure required to deflect elastomer from its original height. (For reference only.)

shield_seal_gasketing_01

 

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