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Westlake Plastics Company is a globally recognized leader in the development and manufacturing of high-performance thermoplastic and fluoropolymer extruded and compression molded stock shapes. Founded in 1951, the company serves critical industries including medical/life sciences (e.g., orthopedic, surgical instruments), aerospace, defense, semiconductor, chemical processing, and food processing, providing innovative material solutions, custom formulations, and near-net shapes. They are known for their technical expertise, quality control (including ISO 13485 certification), and ability to produce materials meeting stringent regulatory requirements.
The Lenni headquarters integrates corporate leadership, advanced research and development labs, primary manufacturing facilities for extrusion and compression molding, and global administrative functions.
Features state-of-the-art extrusion and compression molding manufacturing lines, specialized cleanrooms for medical-grade materials (including implantable grades), and advanced quality control laboratories. The facility is purpose-built for industrial efficiency, precision material production, and adherence to strict quality standards.
A culture focused on innovation in materials science, precision engineering, stringent quality assurance (ISO 13485 certified), and collaborative problem-solving with customers. Emphasis on employee expertise, continuous improvement, and a commitment to meeting the demanding requirements of critical industries.
Serves as the company's original and primary operational base, driving innovation in thermoplastic materials, maintaining stringent quality control, and coordinating global distribution and customer support. It's the heart of their specialized manufacturing expertise and technological development.
Westlake Plastics Company supports its global customer base through its advanced manufacturing capabilities in Lenni, PA, and an extensive network of authorized distributors and direct sales representatives. This network facilitates product distribution, technical support, custom material development consultation, and sales for their high-performance thermoplastic shapes across key markets in North America, Europe, and Asia. They serve diverse industries worldwide, including medical device manufacturing, aerospace, and semiconductor processing, adapting to regional compliance and market needs.
1 West Lenni Road
Lenni
PA
USA
Address: Operations centralized at Lenni, PA HQ; global presence via authorized distributors and direct sales.
To provide localized sales support, technical assistance, and product availability to customers across North America, Europe, Asia, and other regions, ensuring timely access to Westlake's specialized thermoplastic solutions for diverse industrial applications.
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As of April 2025, Westlake Plastics Company' leadership includes:
Westlake Plastics Company has been backed by several prominent investors over the years, including:
Public records and company announcements do not indicate significant publicly disclosed executive-level hires or departures at Westlake Plastics Company within the last 12 months. The leadership team appears stable.
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Westlake Plastics Company commonly utilizes an email format consisting of the employee's first initial followed immediately by their last name, preceding the '@westlakeplastics.com' domain. For example, an employee named Jane Doe would likely have the email address 'jdoe@westlakeplastics.com'. This is a common pattern in many corporations.
[first_initial][last]@westlakeplastics.com
Format
jdoe@westlakeplastics.com
Example
85%
Success rate
Westlake Plastics Company Website • July 12, 2023
Westlake Plastics Company announced the launch of its newly redesigned website, aimed at providing an enhanced user experience with improved navigation, comprehensive product information, and resources for its customers in various industries....more
Westlake Plastics Company Website • May 9, 2023
Westlake Plastics has introduced Zelux® GS, a gamma-stabilized polycarbonate sheet specifically designed for demanding life science and bioprocess applications, offering enhanced material properties and compliance....more
Westlake Plastics Company Website • March 1, 2023
Westlake Plastics Company successfully completed its ISO 13485:2016 recertification audit, reaffirming its commitment to maintaining the highest quality standards for the design, development, and manufacturing of medical-grade plastic stock shapes....more
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