Avient determined that the manufacturer required a material with a unique combination of properties, including: • Processing ease – high flow rate, ability to fill multi-cavity molds, thin-wall capabilities • Superior toughness – strength and durability to ensure dimensional integrity of the part • Repeatable performance – consistent conductivity for accurate measurement of liquids While several off-the-shelf compounds were evaluated, a new formulation was developed to meet the manufacturer’s specific needs as well as provide signifi cant benefi ts in reduced cycle time, increased production and reduced scrap rate.

Beyond material selection, the collaborative team also identified a proprietary design and finishing process that could be achieved with the tooling already in place at WillowWood’s Ohio-based manufacturing facility.

This additive technology has proven effective for use in other applications such as a mold release during thermoforming, helping to reduce processing interruptions.

Avient Corporation 3 Simplified Drop Test • 65g steel ball • Dropped from 305mm • Onto 3.175mm thickness flat samples Materials Tested • Standard TPE 30 Shore A • TPU alloy 60 Shore A • Damping TPE 32 Shore A VDT reduces bounce Avient Corporation 4 SIMULATION & CALIBRATION E N 1 6 2 1 - 1 L E V E L 2 Image courtesy of Airobag TV https://www.youtube.com/c/AirobagTV/videos Simulation of Impact A weight dropped onto protective element in contact with rigid substrate https://www.youtube.com/c/AirobagTV/videos Avient Corporation 5 SIMULATION & CALIBRATION E N 1 6 2 1 - 1 L E V E L 2 REFINING THE DESIGN D E S I G N A N D M A T E R I A L C O M B I N A T I O N Avient Corporation 6 • A number of different shapes and designs are created and simulated to determine which one works best • Refining to meet EN standard • VDT TPEs can help reach compliance with EN1621-1 level 2 and EN1621-2 level 1 • Optimum protection can be achieved by combining industrial design and engineering Avient Corporation 7 VALIDATION P R O T O T Y P I N G W I T H 3 D P R I N T I N G 3D Printing Validation -15% -10% -5% 0% 5% 10% Density Tensile Strength // Tear resistance // Rebound resilience 2mm 3D Printed VDT vs Injection Molded VDT can be 3D printed for concept evaluation early in the design process SUMMARY Avient Corporation 8 • Enabled a new, compact design with a customized VDT TPE formulation • Improved user comfort and functionality • Fulfilled EN standards • Reduced number of prototyping tools required • Reduced time spent in product development by 40 percent, enabling faster commercialization of product

They are constructed from layers of 0°/90° woven E-glass fiber reinforcements combined with a proprietary resin system in a continuous pultrusion manufacturing process.

Seller’s processing of any order is expressly conditioned on Buyer’s assent to and acceptance of these Terms, including all terms that are different from or in addition to any purported terms and conditions of the order. Seller makes no representation or warranty of any kind with respect to the Product, express or implied, respecting merchantability or fitness for any particular purpose, whether used alone or in combination with any other material or in any process, and neither party has relied on any statement outside of these terms. Unless otherwise agreed in a writing signed by Seller, Seller may make changes to its Product and process without notice to, or approval from, Buyer so long as the Product Specifications do not change and the Product conforms to such Specifications.

Seller’s processing of any order is expressly conditioned on Buyer’s assent to and acceptance of these Terms, including all terms that are different from or in addition to any purported terms and conditions of the order. Seller makes no representation or warranty of any kind with respect to the Product, express or implied, respecting merchantability or fitness for any particular purpose, whether used alone or in combination with any other material or in any process, and neither party has relied on any statement outside of these terms. Unless otherwise agreed in a writing signed by Seller, Seller may make changes to its Product and process without notice to, or approval from, Buyer so long as the Product Specifications do not change and the Product conforms to such Specifications.

Seller’s processing of any order is expressly conditioned on Buyer’s assent to and acceptance of these Terms, including all terms that are different from or in addition to any purported terms and conditions of the order. Seller makes no representation or warranty of any kind with respect to the Product, express or implied, respecting merchantability or fitness for any particular purpose, whether used alone or in combination with any other material or in any process, and neither party has relied on any statement outside of these terms. Unless otherwise agreed in a writing signed by Seller, Seller may make changes to its Product and process without notice to, or approval from, Buyer so long as the Product Specifications do not change and the Product conforms to such Specifications.

Seller’s acceptance and processing of any order is expressly conditioned on Buyer’s assent to and acceptance of these Terms, including all terms that are different from or in addition to any purported terms and conditions of the order. Unless otherwise agreed in a writing signed by Seller, Seller may make changes to its Product and production process without notice to, or approval from, Buyer so long as the Product Specifications do not change and the Product conforms to such Specifications. 14. Buyer shall not (re-) export or (re-) transfer or disclose, directly or indirectly, any of the Products or Items supplied by Seller and/or any Items incorporating or processed from such Products, in breach of any laws, or, in the event an export license or other approval is required from any governmental authority or agency, without first obtaining such license or approval.

Seller’s processing of any order is expressly conditioned on Buyer’s assent to and acceptance of these Terms, including all terms that are different from or in addition to any purported terms and conditions of the order. Seller makes no representation or warranty of any kind with respect to the Product, express or implied, respecting merchantability or fitness for any par- ticular purpose, whether used alone or in combi- nation with any other material or in any process, and neither party has relied on any statement outside of these Terms. Unless otherwise agreed in a writing signed by Seller, Seller may make changes to its Product and process without notice to, or approval from, Buyer so long as the Product Specifications do not change and the Product conforms to such Specifications.