SPRINGMESH™
5Pages

Customer Value Proposition: SPRINGMESH gaskets are highly resilient, highly conductive, knitted wire mesh strips used to provide electromagnetic interference (EMI) shielding and electromagnetic pulse (EMP) shielding at the joints and seams of a variety of enclosure applications. The key factor differentiating SPRINGMESH from traditional knitted wire mesh gaskets is the resilience of the material to compression set. SPRINGMESH has capabilities of being deflected greater than 70%, with remarkable recovery and without the aid of an elastomer core. Compression set reduction results in consistent electrical performance over time, thereby increasing gasket life and reducing rework costs associated with replacement. SPRINGMESH gaskets are produced utilizing tin-plated steel wire in a variety of standard hollow-O cross sectional geometries to meet a wide array of performance criteria. Custom profile geometries are limited, but can be evaluated to meet unique application requirements. 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 • Tin-plated steel wire is the standard metal alloy • Round cross sectional geometries are standard • 100% metal content • Knit construction • Multiple gasket form-factors and installation options • Foreign object debris (FOD) free, encapsulated ends available upon request Contact Information: Parker Hannifin Corporation Chomerics Division 77 Dragon Court Woburn, MA 01801 phone 781 935 4850 fax 781 933 4318 chomailbox@parker.com Benefits • Tin-plated steel wires reduce gasket compression set and the reduction in shielding performance that is typically associated with it, thereby reducing costs associated with seal replacement due to performance deficiencies • Various standard hollow-O geometric offerings ensure easy gasket integration into existing applications, thereby eliminating the need for redesign. • 100% metal gaskets are highly durable and silicone-free, making them an excellent choice for applications with either silicone outgassing sensitivity or temperature requirements which exceed 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 installations without the need for capital expenditures • Encapsulated ends ensure the elimination of foreign object debris and associated rework costs www.chomerics.com www.parker.com/chomerics ENGINEERING YOUR SUCCESS.

Application Design Information: Parker Chomerics SPRINGMESH gaskets are used to provide EMI/EMP shielding 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 SPRINGMESH was specifically developed for compression set resistance. As such, the material is limited to only the standard tin-plated steel offering. For applications with corrosion sensitivity, galvanic compatibility with tin should be targeted...

Substrate Surface Preparation Acknowledging that most applications have a substrate surface treatment interfacing with SPRINGMESH gasketing, there are a few variables to keep evaluate. First, the surface finish must allow for electrical contact between the gasket and the substrate. If electric contact is not ensured, gasket performance will be substantially reduced. Therefore, non-conductive surface treatments are not recommended unless masking of the gasket flange area is possible. Though non-conductive, chemical conversion coatings are commonly used in conjunction with MESH STRIP gaskets....

Table 1 - Material Specifications ENGINEERING YOUR SUCCESS.

Figure 2 - Typical Electrical Resistance under Deflection Note: Please contact the Parker Chomerics Applications Engineering Department at 781-935-4850 with additional design questions. Please contact the Parker Chomerics Test Services Department at 781-935-4850 in instances where application specific performance data is necessary. www.chomerics.com www.parker.com/chomerics CHOMERICS is a registered trademark of Parker Hannifin Corporation. ® 2013 TB 1098 EN March 2013 ENGINEERING YOUR SUCCESS.