At Hammond Group, two product trends stand out as reflections of where battery manufacturers are placing their confidence right now. Pre-blended expander: the last holdouts come aroundFor most lead battery manufacturers, the transition to pre-blended expander happened long ago. In some cases it is generational: as veteran plant managers and operators retire, their institutional attachment to individual raw material addition retires with them. Many manufacturers have relied on high-temperature steam curing to drive 4BS formation – an approach that works in principle but carries real drawbacks. The underlying themeWhat connects these two trends is the same logic: manufacturers are investing in raw material solutions that deliver more control over outcomes previously left to process management.