Customer’s Application
The customer that manufactures radio devices for military applications is looking for a sprayable coating to protect the device from electromagnetic interference. It is also important for the coating to provide an effective barrier against moisture.Application Discussion
In order to recommend the right solution, our technical expert needs to find out answers to certain questions pertaining to the customer’s application: 1. What level of shielding effectiveness is required in your application? 2. Will you be performing any humidity testing? At what temperature, moisture level and for how long does the coating need to withstand the testing? 3. What are the minimum and maximum temperatures that the coating will be exposed to? 4. What viscosity are you looking for?Product Recommendation
Based on answers to the above questions, Kohesi Bond’s technical expert recommended our product KB-SS-SIL. KB-SS-SIL is a one component, room temperature curing sodium silicate based system. It offers superior electrical conductivity (volume resistivity < 0.001 ohm-cm). Shielding effectiveness is measured by attenuation, which refers to the difference in an electromagnetic signal’s intensity before and after shielding. Achieving shielding at higher frequencies is extremely challenging. However, as seen in the table below, KB-SS-SIL offers phenomenal shielding against electromagnetic and radio frequency interference, even at higher frequencies. Additionally, it has proven to be an excellent moisture barrier that can withstand extremely high temperatures, up to 370°C. It offers a flowable paste like viscosity, which makes it easy to spray on any substrate using an appropriate equipment. It is a water based system, making it relatively non-toxic. Our customer successfully tested KB-SS-SIL in their application and got excellent results.| FREQUENCY | SHIELDING EFFECTIVENESS |
| 1 – 2 GHZ | 95 – 105 dBs |
| 2 – 15 GHz | 95 – 78 dBs |
| 18 GHz | 60 dBs |
Utsav Shah is a 34-year-old entrepreneur with a passion for scientific discovery. Utsav’s journey began with a deep dive into materials science, earning degrees from USC and the Institute of Chemical Technology. He’s the visionary founder of Kohesi Bond, a top-rated adhesive manufacturer, and Cenerge Engineering Solutions, a leader in heat exchangers and cryogenic pumps. With over a decade of experience, Utsav consults across various industries, ensuring they have the perfect adhesive solution for their needs. Connect with him on LinkedIn!
