MAJR Resources & News

MAJR Products’ Replacements for GORE GS2100 & GS5200

October 3, 2022

Manufacturers of equipment for demanding applications such as wireless infrastructure, ruggedized scanners/readers, test equipment, defense and aerospace communications need reliable and cost-effective EMI / RFI shielding. Many are approved for military aerospace and spaceflight applications and typically combine good shielding effectiveness with light weight and low outgassing. They are offered in various forms, such as roll, sheet and peel and stick strips, that can be customized for a range of gasket solutions. Recently, W.L. Gore & Associates has discontinued their GS2100 & GS5200 materials resulting in an increase in need of comparable materials for EMI / RFI shielding.  MAJR Products has been ...
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EMP Shielding: The Background, Need and Solutions

September 1, 2022

Definitions & Distinctions HEMP is defined as an instantaneous, intense electromagnetic pulse (EMP) field that can overload and disrupt from great distances electrical systems and microcircuits. It is generally assumed if one occurred it would be set off by a high altitude nuclear explosion; obtainable by missile flight1 or, more recently believed, from a satellite. The only real defense for an event is with HEMP shielding. IEMI is defined as an intentional malicious generation of electromagnetic energy introducing noise or signals into electric and electronic systems, thereby disrupting, confusing or damaging the systems for the purpose of criminal or terrorist activities2. It ...
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MAJR Shielding Products For SCIFs | A Strategic Design Guide

August 1, 2022

What exactly are SCIFs, and why do engineers need a variety of mil-spec shielding products when designing them? SCIF’s are Sensitive Compartmented Information Facility (pronounced “skiff”), a U.S. Department of Defense term for a secure room. It can be a secure room or data center that guards against electronic surveillance and suppresses data leakage of sensitive security and military information. SCIFs are used to deny unau­tho­rized per­son­nel, such as for­eign intel­li­gence ser­vices or corporate spies, the oppor­tu­nity for unde­tected entry into facil­i­ties for the exploita­tion of sen­si­tive activ­i­ties. U.S. military and intelligence entities worldwide use these protected, shielded enclosures to aggregate, analyze, ...
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Where And How To Source Shield Seal Gaskets | RFI-EMI Shield Products

May 18, 2022

Where can engineers, designers, and technical teams go to find the technical specifications and professional assistance they need to source conductive environmental gaskets and other RFI/EMI shielding products? Depending on the application, EMI shield seal gaskets are available in various material combinations, configurations, and gasket sizes. So, where can engineers get started on their search for RF/EMI and environmental shield gasket sourcing and design? Let’s consider a common use case—electronic cabinets. In applications such as electronic cabinets, an elastomer gasket, sometimes with a wire mesh composition, is commonly used around the doors and apertures of the cabinet to seal off stray EMI signals. ...
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Your Source for Flame Retardant EMI Gasket Products

May 4, 2022

Engineers need a reliable go-to source to specify low outgassing, flame retardant conductive gasket products. Engineers and designers need to specify specialty products with confidence. And those products include flame retardant, low outgassing gaskets. This post will discuss: Common Uses for Flame Retardant Elastomers Specifications for Flame Retardant Elastomers Where To Go for More Information What are a commonly encountered uses for flame retardant EMI gaskets from MAJR Products? Flame retardant conductive gaskets can be used in a myriad of applications that require flame retardance and low outgassing including aerospace and military. MAJR’s 2100 and 5200 series material is commonly used to replace the discontinued GORE® GS ...
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Shielded Fan Vents—Why You Need Them and How To Source Them

April 6, 2022

Are you trying to spec or source EMI/RFI Shielded Fan Ventilation Panels? If so, you’ve come to the right place. But what exactly are shielded fan vent panels, and when do you need them? We provided some answers in a previous post: EMI shielded vent panels are a critical part of hardened enclosures.  Honeycomb ventilation panels can prevent the ingress of unwanted EMI or RF signals, while still providing optimum airflow and cooling for most systems. Different types of mission-critical electronics and equipment such as computers and test equipment generate electromagnetic signals and heat. That means that the hardened enclosure housing the electronics ...
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MAJR’s Honeycomb Waveguides for High Reliability Requirements

March 3, 2022

As a professional, you need products that enable your operation to work correctly – from electronics to motors to EMI waveguides. When you have a situation that requires consistent air flow in an EMI/RFI shielded environment, it’s crucial to ensure that air continues to move easily through a panel while allowing for the attenuation of electromagnetic energy. MAJR Products Waveguides MAJR is an internationally recognized manufacturing leader of EMI/RFI shielding products, and we’ve served the electronics industry for decades. Our Honeycomb Waveguides uses a unique pattern and design that’s affordable and dependable. Constructed of high-grade materials and designed by a team of engineers, it’s ...
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Reduce Interference from 5G Frequency Bands with MAJR’s Products

January 17, 2022

5G technology is becoming the industry standard, and its purpose is to connect virtually everyone, and every type of system, together to speed up transfer of information and deliver benefits such as: Higher multi-Gbps peak data speeds Ultra-low latency Upgraded reliability Massive network capacity Increased availability Uniform experience among users In addition to upgrading the quality of smartphones , 5G is also poised to help industries who need mission-critical communications. When different areas of a company or manufacturing facility can speak with each other in a more accurate manner, there are multiple benefits to take advantage of. These frequency bands are divided into three categories: low, mid, and ...
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MAJR Products – EMI Shielding for Any Industry, Any Need, Any Time

November 17, 2021

At MAJR, we’re proud to offer our customers a complete selection of shielding products that are designed by experts and created from military grade materials. When you work with us, you’ll be able to thoroughly review a full line of EMI shielding products and services including technical information, data sheets and applications info via our recently updated  website. We also offer the advantage of having accessible engineering expertise that is only a phone call away. MAJR makes it a priority to know your industry’s EMI shielding requirements, whether it’s box, cabinet, enclosure or even board level solutions you’re looking for. It’s this ...
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EMI Grounding Washers from MAJR

October 14, 2021

When you are working to ensure that your electronic enclosures are securely sealed from EMI, it’s important to use the correct materials for your application. In the event that you’re using standard flat washers that are improperly designed EMI leakage can occur causing failure in the equipment and entire operating system.  The MAJR Way MAJR uses knitted wire mesh stocking when we produce our EMI grounding washers. We’ve learned that this material can be greatly compressed in a close-tolerance forming die. This allows us to supply a wide variety of diameters and thicknesses perfect for most shielding applications.   This density can help increase ...
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