About Daramic

Company Profile

For over 85 years, Daramic, LLC has led the way in developing new and innovative technology for the lead acid battery market. With headquarters in Charlotte, North Carolina, USA—Daramic today supplies high performance polyethylene and phenolic resin battery separators to the lead acid battery industry.


As a global leader, Daramic operates 10 manufacturing facilities. Each facility is strategically located, ensuring continuity of supply, short lead times and fast service. In the USA, our plants in Owensboro, Kentucky, and Corydon, Indiana, serve North, Central and South America. Our facilities in Selestat, France and Norderstedt, Germany serve our European customers. Daramic serves the Asia/Pacific Region through our plants in Bangalore, Baddi, & Gujarat, India, Tianjin and Xiangyang , China and Prachinburi, Thailand.


Daramic is also committed to delivering unsurpassed expertise in advanced separator technology. Our Center of Innovation in Owensboro, Kentucky, is the central hub for our scientists, industry experts and service technicians – all of whom have valuable industry-specific experience. Our team—combined with state-of-the-art product development, material analysis, pilot manufacturing and testing facilities—can serve as an extended resource for your technical team. Whether it’s designing a new battery separator, customizing products to meet specific needs, or providing assistance with field support, Daramic’s Center of Innovation is available to you.

All told, our global infrastructure, localized manufacturing and industry-leading technical service and support all provide you with peace of mind—knowing that Daramic is there to meet your needs with high performance products and the best value in the industry.

Company History

1930
1972
1980
1996
2000
2006
2008
2011
2012
2015

1930

Daramic established as Dewey & Almy Corporation, USA and develops rubber separators

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1930

Daramic established as Dewey & Almy Corporation, USA and develops rubber separators

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1972

Owensboro, Kentucky, USA plant expands to become the first location to invent & manufacture PE separators

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1980

Manufacturing established in Norderstedt, Germany and Selestat, France

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1996

Corydon, Indiana, USA separator plant is established through acquisition

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2000

Established footprint in Asia with opening of manufacturing plant in Prachinburi, Thailand

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2006

Daramic expands into China by forming a joint venture

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2008

Bangalore, India plant is established through acquisition

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2011

Daramic establishes a joint venture with Camel in China

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2012

Daramic commences manufacturing operations in Baddi, India

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2015

Asahi Kasei acquires Polypore International, LP, the parent company to Daramic and affiliates

Locations

Daramic Plant Floor

Production & Quality

Daramic operates 10 manufacturing facilities across three continents, which meets global production capacity, while providing flexibility to efficiently and effectively meet the needs of customers around the world. Consistent implementation of the three major manufacturing process steps is key to delivering quality across the globe.

Before products are shipped, several physical and chemical measurements are performed throughout the process. Annually, over 10,000 certificates of analysis are prepared, checked and sent to customers. More than 250 samples are produced annually to support our customer's product development, cost reduction initiatives or target new applications.

Join the Daramic team

Careers

Our passion has always been to deliver leading-edge technology and value-added services by working closely with our customers. Now, after decades of steady growth, we’re aggressively investing in the talent needed to support our global expansion.

This is a time of great opportunity for those eager to embrace the risks and rewards of rapid change. Daramic enjoys market leadership in the lead acid battery market, and is making great strides as it branches into hybrid and energy storage technology. More than any other time in our 85 year history, we have the resources to arm employees with the skills and tools they need to thrive.