Daramic
Daramic is the world's leading maker of separators for lead-acid batteries, the thin membranes that keep each cell working, supplying battery makers from plants across the Americas, Europe and Asia. It has been owned by Kingswood Capital Management since 1 December 2025, having previously belonged to Asahi Kasei.
Profile
Daramic is a leading manufacturer of separators for lead-acid batteries, the microporous membranes placed between the plates in a cell. It is a global supplier serving the automotive and industrial lead-battery markets.
The company produces polyethylene and other separators for flooded, EFB and other lead-acid battery types, supplying battery makers worldwide. Separators are a critical component determining a battery's performance and life.
Daramic is among the most established names in lead-acid separators, occupying a specialist position in the components tier of the supply chain.
Written from the public record, including the company’s own published figures, which are attributed as such. Company details change often, so confirm anything material with the company. Suggest a correction