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Trust ENTEK for quality, security of supply and technology leadership.

ENTEK designs, manufactures, and standardizes the world’s best lead-acid separators. We provide battery manufacturers with reliable, high-quality products for SLI, start-stop, golf car and industrial applications. We are a global company based in Lebanon, Oregon with locations in Newcastle Upon Tyne, UK and Jakarta, Indonesia.

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ENTEK Lead-Acid Battery SeparatorThere are four major requirements for a separator in a flooded lead-acid battery:

  1. prevent shorting between electrodes
  2. stable in sulfuric acid
  3. allow ionic conduction without dendrite growth
  4. provide mechanical spacing between electrodes

Historically, lead acid battery separators have included cellulose, polyvinyl chloride, organic rubber, and polyolefins. Today, most flooded lead acid batteries utilize “polyethylene separators” — a misnomer because these microporous separators require large amounts of precipitated silica to be acid-wettable. Silica is responsible for the separator’s electrical properties; polyethylene is responsible for the separator’s mechanical properties. The porosity range for polyethylene separators is 50-65%.


ENTEK Battery SeparatorsENTEK is the global leader for lead acid separators.  We pioneered 0.15 mm backweb, the world’s thinnest separator.  Today we manufacture separators for SLI, start-stop, deep cycle, motive and stationary batteries.

Customer Service

We value our customers.  ENTEK is known worldwide for outstanding service. As proud as we are of delivering superior products and technical service, it’s our dedication to our customers that keeps them coming back.

Technical Service

ENTEK’s foundation in producing separator enveloping equipment provides a strong legacy of knowledge and experience with the demands on a battery separator. ENTEK Account Managers and Technical Service professionals provide a variety of services and value. These include on-site separator usage visits, ENTEK Separator 101 seminars, participating in customer led continuous improvement workshops and coaching on how to best use your enveloping equipment to increase throughput and minimize in-process defects.


ENTEK Customer Service - QualityENTEK manufactures polyethylene battery separators for lead-acid battery applications to the highest standards. Our Global Enterprise Management System (GEMS) houses the documentation and data systems that assure quality is our highest priority. Through Standard Operating Procedures (SOP), Statistical Process Control (SPC), Rigorous Testing and Minitab Data Analysis, we ensure repeatability and reproducibility to our customers’ specifications, while striving for continuous improvement.

In the UK, ENTEK International Ltd. is certified ISO 9001:2015 and ISO 14001:2015. In the US, ENTEK International LLC is certified ISO 9001:2015.  We continue to push our quality systems forward incorporating IATF 16949:2016 elements, including APQP, FMEA, SPC, MSA and PPAP under AIAG (Automotive Industry Action Group) guidelines.

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Contact Us


Ingeniería Plástica Rosario S.A.

Ing. Horacio Asad - Country Representative
+54 341 5184400 int. 223
+54 341 5185999


Clint Beutelschies

Vice President Global Sales
+65 6956 6119
+1 713 208 2248

Tay Hwa Beng

Business Development Engineer
+65 6956 6119
+65 9757 9621

Ankur Singh

Business Development Manager India (SAARC)
+91 738 883 3999
+65 683 59655

Jason Kim

Sales Manager Korea / Japan & Japanese Affiliates Asia
+82 10 8288 7335

Eastern Europe & North Africa

Richard Towns

Account Manager
+44 (0) 191 268 5054

South America

Greg Humphrey

Account Manager
+1 541 259 3901

South Korea

Dong Yang Corporation Ltd.

Jason Kim - Country Representative
82 42 483 8490 (Daejeon Head Office)
82 31 8015 3411 (Giheung Branch)
82 42 483 8509 (Daejeon Head Office)
82 31 8015 3412 (Giheung Branch)

United States

Andrew Wimer

Account Manager North America
+1 541 259 3901

Western Europe & South Africa

Richard Towns

Account Manager
+44 (0) 191 268 5054