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MESH STRIP®

MESH STRIP®

MESH STRIP®

Product catalog summary
Customer Value Proposition: MESH STRIP gaskets are cost-effective, resilient, and highly conductive knitted wire mesh strips designed for EMI and EMP shielding, as well as electrical grounding in various enclosure applications. They are available in standard geometries and materials, with custom options to meet specific requirements. These gaskets can be integrated into manufacturing environments without additional capital expenditures and are available in spooled, cut-to-length, or spliced forms.
Features: Standard alloy choices include Monel, Ferrex, and aluminum, with custom materials available. Standard geometries include rectangular, round, round with fin, and double round. The gaskets have high metal content, knit construction, and multiple form factors and installation options. A foreign object debris (FOD) free version is available.
Benefits: The variety of metal alloys allows for optimized performance in terms of galvanic corrosion, EMI/EMP attenuation, electrical conductivity, and temperature range. Standard geometries facilitate easy integration into existing applications. High metal content ensures durability and suitability for applications sensitive to silicone outgassing or high temperatures. Knitted wire construction offers a lightweight solution for weight-restricted applications. Multiple attachment methods allow for easy incorporation into existing manufacturing environments.
Material Type: MESH STRIP gasketing is available in Monel, Ferrex, and aluminum alloys, with custom materials available. Material selection should consider electrical performance, galvanic compatibility, durability, and temperature thresholds. Monel is recommended for moderate shielding and galvanic concerns, Ferrex for low-frequency shielding, and aluminum for galvanic compatibility with aluminum substrates.
Mounting: Gaskets can be mounted in open areas or grooves. Groove incorporation is preferred for better retention and shielding. Open area mounting can use RTV spot bonding, welding, soldering, or riveting. Pressure-sensitive adhesive is not available for knit mesh products.
Application Design Information: MESH STRIP gaskets provide EMI/EMP shielding and lightning grounding. Design variables include material choice, mounting method, and geometric profile. Larger gaskets reduce tolerance variation effects but are more costly. Tolerance swings should be considered for optimal performance.
Substrate Surface Preparation: Surface finish must allow for electrical contact. Non-conductive treatments are not recommended unless masking is possible. MIL-DTL-5541 Class 3 is recommended for chemical conversion coatings.
Foreign Object Debris (FOD): Terminated ends with silicone encapsulant are available to bind loose debris and mitigate FOD risk.
Fastener Spacing: Recommended spacing is 2.5 to 3.5 inches, reduced to 1.5 to 2.5 inches for extreme forces or thin flanges.
Weather Sealing: MESH STRIP does not provide water sealing; refer to Chomerics COMBO GASKET for weather sealing needs.
Tables: The document includes tables detailing material specifications, typical shielding effectiveness, and available profiles with part numbers for ordering.
Overview: This document provides specifications for various metal EMI mesh strip profiles, detailing dimensions and corresponding part numbers. The data is organized into tables that categorize the profiles based on their shape and size.
Specifications:
  • Double Round with Fin: This section lists the diameter and overall dimensions of double round profiles with fins, along with their part numbers. Sizes range from 0.062 inches (1.57 mm) to 1.000 inches (25.40 mm).
  • Round with Fin: Similar to the double round profiles, this section provides dimensions and part numbers for round profiles with fins. The diameters range from 0.062 inches (1.57 mm) to 1.000 inches (25.40 mm).
Key Data:
  • Each profile is associated with a specific part number, facilitating easy identification and ordering.
  • Dimensions are provided in both inches and millimeters for international compatibility.
Additional Information:
  • The document references CHOMERICS, a registered trademark of Parker Hannifin Corporation, indicating the brand and manufacturer of the products.
  • The document is dated April 2013, suggesting the time frame of the specifications provided.
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Catalog excerpts

MESH STRIP®-1

Customer Value Proposition: MESH STRIP gaskets are cost effective, resilient, highly conductive, knitted wire mesh strips used to provide electromagnetic interference (EMI) shielding, electromagnetic pulse (EMP) shielding and electrical grounding at the joints and seams of a variety of enclosure applications. To reduce application design time, tooling charges and lead times, MESH STRIP gaskets are produced in a variety of standard cross sectional geometries and wire mesh alloys to meet a wide array of performance criteria. For unique application requirements, custom materials and profile geometries are available upon request. To ensure quick and easy integration into any manufacturing environment, without the need for additional capital expenditures, material can be provided in spooled, cut-to-length, or spliced gasket forms and affixed utilizing welding, adhesive spot-bonding, soldering or riveting. Features: • Monel, Ferrex* and aluminum are standard alloy choices, with custom wire material available upon request • Rectangular, round, round with fin and double round are standard cross sectional geometries, with custom geometries available upon request • High metal content • Knit construction • Multiple gasket form-factors and installation options • Foreign object debris (FOD) free version available upon request Contact Information: Parker Hannifin Corporation Chomerics Division 77 Dragon Court Woburn, MA 01801 phone 781 935 4850 fax 781 933 4318 [email protected] Benefits: • Various metal alloy offerings allow for optimized performance variables such as galvanic corrosion, EMI / EMP attenuation, electrical conductivity and temperature range • Numerous standard geometric offerings ensure easy gasket integration into existing applications, thereby eliminating the need for redesign • High metal content gaskets are highly durable and silicone-free, making them an excellent choice for applications with either silicone outgassing sensitivity or temperature requirements which exceeds that of typical silicone-based EMI / EMP seals • Knitted wire construction results in a light-weight product offering for applications with weight restriction requirements • Multiple gasket form factors and attachment methods allow for easy incorporation into existing manufacturing installation environments without the need for capital expenditures • Encapsulated ends ensure the elimination of foreign object debris and associated rework costs. * Ferrex is Parker Chomerics tradename or tin-plated, copper-clad steel wire per ASTM B-520, ASTM (QQ-W-343) tin-plated, 2-3% by weight; ASTM B-227 copper-cladding 30-40% by weight; SAE 1010 steel wire, balance by weight and is the same as Tecknit Su/Cu/Fe which it replaces. www.chomerics.com www.parker.com/chomerics Chomerics ENGINEERING YOUR SUCCESS.

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MESH STRIP®-2

Application Design Information: Parker Chomerics MESH STRIP gaskets are used to provide EMI/EMP shielding and lightning grounding performance for a variety of applications. Various design variables should be considered when making a product selection to ensure optimal performance. These variables are expanded upon in the following text to assist in the design process. Material Type MESH STRIP gasketing is offered in monel, Ferrex and aluminum alloys as standard offerings, with custom materials being available upon request. When making a material selection, a number of variables should be taken...

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MESH STRIP®-3

Geometric Profile For MESH STRIP products, round, rectangular, double round and round with fin are standard profiles. After the aforementioned mounting criteria are evaluated, the final decision regarding the geometric gasket profile to be incorporated into the design is related to size. Gasket size selection is a balance between available space in the application, the force available for gasket deflection and the tolerances associated with the application. The larger the gasket, the less effect tolerance variations have on gasket deflection percentage. This will mitigate gasket under or over-deflection....

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MESH STRIP®-4

Table 1 - Material Specifications ENGINEERING YOUR SUCCESS

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MESH STRIP®-5

ORDERING PROCEDURE Continuous Length Gaskets - Order by part numbers listed in Tables 4 through 7 by replacing ‘X’ with 1 for monel, 2 for aluminum or 4 for Ferrex and then specify total length required per part. Custom Fabricated Gaskets - Specify the standard material to be used to manufacture the part by referencing the part numbers listed in Tables 4 through 7. Submit a fully dimensioned drawing of the required gasket, referencing any splice locations or terminated ends (when applicable). For design assistance please contact Parker Chomerics Applications Engineering Department. ParkerChomerics...

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MESH STRIP®-6

www.chomerics.com www.parker.com/chomerics CHOMERICS is a registered trademark of Parker Hannifin Corporation. ® 2013 TB 1099 EN April 2013 ENGINEERING YOUR SUCCESS

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.