Nickel-Aluminum vs. Silver-Aluminum for EMI Gaskets

              In today’s rapidly changing industrial environment, cost-effective solutions are crucial, particularly when selecting materials for EMI (electromagnetic interference) gaskets. Silver prices rose 23.1% from last year, prompting many manufacturers to seek alternatives that provide both performance and price stability. Nickel-aluminum shielding silicones emerge as the ideal alternative due to their low cost and reliable performance in numerous applications.

Established Performance with SSP

               Specialty Silicone Products (SSP) is a leading provider of reliable nickel-aluminum elastomers. Their products, such as the SSP-2529 and SSP-2551, offer a combination of cost-effectiveness and proven performance, supported by third-party solid test data.

               SSP-2529 is a 68-durometer nickel-aluminum silicone that has passed the MIL-DTL-83528 EMI shielding tests conducted by D.L.S. Electronic Systems Inc. Additionally, it has undergone various assessments from Pacific Testing Laboratories Inc. For those seeking comparative analysis, SSP provides a salt spray test report contrasting SSP-2529 with a passivated silver-aluminum material from a competitor. The availability of a comprehensive technical data sheet and ASTM D575 Method A compression deflection data further supports its reliability.

               Another impressive offering from SSP is the SSP-2551, a 72-durometer fluorosilicone. Like its counterpart, this material is backed by third-party testing for EMI shielding and outgassing. Notably, it has met the stringent requirements of ASTM E595, an industry standard utilized by NASA. Product samples of SSP-2551 have been tested with and without pressure-sensitive adhesive (PSA), providing further insights for engineers.

Low Outgassing Silicones and Enhanced Designs

               SSP’s commitment to transparency distinguishes it within the industry. Although many suppliers offer nickel-aluminum elastomers, they frequently lack the support of third-party testing. In contrast, SSP supplies these crucial reports and collaborates with customers to understand their needs.

               As demand for satellite communications and spacecraft applications continues to surge, SSP is dedicated to providing low-outgassing EMI silicones that do not cloud sensitive optics. Detailed compression deflection data for products SSP-2551 and SSP-2529 aids in designing enclosure gaskets and helps establish precise product specifications.

More Choices Ahead

               With silver prices expected to stay unpredictable, finding the right combination of price, proof, and performance is now more achievable than ever. SSP is set to announce the upcoming release of a low-durometer nickel-aluminum product line, which will further expand manufacturers’ options.

 If you have questions, need quotes regarding EMI gasket solutions, or want to learn more about our innovative products, please contact us!