Design007 Magazine

Design007-May2025

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work hard to ensure our new prod- ucts can be used the same way as the older products. That's certainly good for manu- facturers. What other consider- ations are there around confor- mal coatings? Turner: Electrolube offers a wide range of polymer materials, including thermal interface mate- rials (TIMs). Recently, we've intro- duced new liquid gap fillers: liq- uid applied compounds that cure to form low-stress, low-modulus materials with exceptional ther- mal conductivity. These soft, liq- uid applied materials also offer the advantage of being compress- ible, which helps lower thermal impedance, resulting in supe- rior heat dissipation. As high-den- sity power electronics grow, effec- tive heat management becomes increasingly critical, especially for dissipating heat from hot spots. Our new products stand out because they solve two common challenges seen with traditional liquid gap fillers. First, many liquid gap fillers are heavily filled, which can lead to sedimentation or set- tling over time. This inconsistency means the material properties may vary depending on where you sample from the fluid reservoir. To address this, we've carefully formulated our mate- rials to ensure con- sistent performance throughout the applica- tion process. Second, the high fill content in many gap fill- ers leads to high viscos- ity, resulting in slow flow rates. This slow flow can extend processing times, making production more time-consuming. By refining our formulations, we've achieved higher flow rates, signif- icantly improving production effi- ciency and throughput. Is the longer process time a drawback? Turner: The long process times of traditional liquid gap fillers can be an issue. We work closely with sup- pliers of dispensing equipment to ensure we develop materials suit- able for rapid processing and high- throughput applications. We have a success story with an automotive customer on an ECU (electronic control unit). Essentially, they had a very specific time window within which they needed to dispense enough material for their part, and when using other suppliers' mate- rials, they were struggling to meet that strict time requirement. They found that they were able to dis- pense our 4W/mK LGF400 material in the required time because the flow rate is rapid. These new liquid gap fillers are available in recycled packag- ing, and bolster our existing ther- mal interface material range, that includes gap pads and thermal greases. Your HiTech series deals with hal- ogen-free, low energy consump- tion, and low temperature. Talk a little bit about the sustainability aspect of this product line. Rehman: At MacDermid Alpha, we have made a commitment to mak- ing our products more sustainable to support ESG goals for the larger industry, not only for the HiTech products but across all product lines. Sustainability is ingrained in

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