New Solupor(R) Membrane Application for High Performance Liquid Filtration

New Solupor(R) Membrane Application for High Performance Liquid Filtration

MANCHESTER, Conn., Oct. 21, 2013 (GLOBE NEWSWIRE) -- Lydall Performance
Materials, a division of Lydall, Inc. (NYSE:LDL), and Limburg Filter B.V.
announced today that they have co-developed a best-in-class filtration
solution for the recovery of fine pigment powder by combining Lydall's
Solupor^® membrane with Limburg's Leaktite^® filtration technology.

Solupor is a porous, durable, chemical resistant, ultra-high molecular
polyethylene membrane that produces very high-filtration efficiencies with low
pressure loss. Current applications include liquid filtration in medical,
biopharmaceutical, and water purification environments.

Leaktite is a newly developed filtration technology suitable for removal of
liquids from slurries using a chamber filter press. It was first proven in the
filtration of aqueous graphite dispersions followed by many other applications
in the chemical industry.

One of the major filtration issues in the recovery of pigments is that
traditional filtration technologies require filtrate recycling - or so-called
reflux - until a filter cake has been built up, resulting in a relatively
inefficient process. By using the specially developed Solupor laminated
membrane, the Leaktite filter is now able to provide a single-pass filtration
option and increase the efficiency for the recovery of expensive pigments,
eliminating the need for reflux.

David Williams, President, Performance Materials at Lydall, said, "A key focus
at Lydall is growing our presence in the filtration marketplace through
product innovation. Our Solupor product has already shown great promise in
helping to solve challenging filtration applications. We are very pleased with
the collaboration with Limburg Filter and the resulting innovation that
creates a solution to a problem previously unsolved."

Frank Kruip, CEO of Limburg Filter, stated, "We believe the new Solupor
technology will further enhance our filtration product offering."

Lydall will be present at the Filtech Exhibition (Hall 1 Stand C4) in
Wiesbaden, Germany, October 22-24, 2013, where more information on this
innovative solution will be available.

Lydall, Inc. is a New York Stock Exchange listed company, headquartered in
Manchester, Connecticut. The Company, with operations in the U.S., France, the
Netherlands and Germany and offices in the U.S., Europe, and Asia,
manufactures specialty engineered products for the thermal/acoustical and
filtration/separation markets. For more information, visit Lydall^® is a registered trademark of Lydall, Inc. in
the U.S. and other countries. All product names are trademarks of Lydall, Inc.

CONTACT: For further information:
         Limburg Filter
         Frank Kruip
         Telephone +31-43-4581699
         Facsimile +31-43-4582115
         For further information:
         David D. Glenn
         Director of Business Development and
         Investor Relations
         Telephone 860-646-1233
         Facsimile 860-646-4917

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