Please refer to the earnings release and supplemental slides for definitions and reconciliations of these non-GAAP measures to comparable GAAP financial measures. Before we review this record quarter, I'd like to reiterate our rationale for the announced agreement to merge with Solstice Advanced Materials. This proposed transaction unites our complementary competencies to better meet customer demands for scaled, broad strategic supply partners, while also increasing avenues to prudently invest our cash flows for growth and unlocking compelling synergies. Together, we stand to build an even stronger electronics portfolio across chip and PCB fabrication, packaging, and assembly, while accelerating investment in the commercialization of new advanced materials and other growth priorities.
The combined company will be a market leader in profit growth and cash flow generation with multiple high-growth businesses. As today's results show, our organic path has tremendous momentum, and combining our business with Solstice should provide an incremental lever to deliver greater value than we otherwise would have. Turning to our second quarter results, Element Solutions posted a record quarter as organic growth accelerated in our electronics portfolio and the specialties business continued to deliver bottom-line growth despite a mixed backdrop. There are significant opportunities for our teams to improve value and use manufacturing processes, particularly as pockets of the electronic supply chain have become constrained relative to accelerating demand.
In the second quarter, we delivered double-digit organic sales growth for the third quarter in a row and margin expansion when excluding the impact of pass-through metals. Our profitable growth is happening alongside increasing investment in people, technology, and plans to support the future. Sales in our Electronics segment grew 20% organically as activity accelerated across our supply chain in support of the ongoing AI infrastructure build-out. Technical requirements in data center hardware and other high-performance electronics continue to increase, and our business provides critical enabling solutions across thermal management, power density, and advanced packaging applications, to name a few.