These materials will be featured at CHINAPLAS next week, along with examples of how they are integrated with processing and design services to accelerate product development. About PolyOne PolyOne Corporation, with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. The company is dedicated to serving customers in diverse industries around the globe by creating value through collaboration, innovation and an unwavering commitment to excellence.

PolyOne Corporation, with 2013 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. The company is dedicated to serving customers in diverse industries around the globe, by creating value through collaboration, innovation and an unwavering commitment to excellence. Guided by its Core Values, Sustainability Promise and No Surprises PledgeSM, PolyOne is committed to its customers, employees, communities and shareholders through ethical, sustainable and fiscally responsible principles.

Advancing circularity in our operations and our customers’ products Supporting technology breakthroughs by meeting our customer’s sustainable solution needs. Approximately 90% of our Scope 3 emissions come from purchased goods and services and downstream processing of sold products (55% and 24% respectively).

ORLANDO – May 6, 2024 – Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, invites attendees at NPE 2024 to learn how the company is helping customers solve some of the most pressing challenges facing our industry today, including solutions that enable circularity in addition to solutions that reduce carbon footprint to support sustainability goals, through a dynamic showcase of product launches, sustainability initiatives, and technical seminars. It will be on display in Avient’s customer center at NPE 2024   Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

PROBLEM CAUSE SOLUTION Incomplete Fill Melt and/or mold temperature too cold Shot Size • Increase nozzle and barrel temperatures • Increase mold temperature • Increase injection speed • Increase pack and hold pressure • Increase nozzle tip diameter • Check thermocouples and heater bands • Enlarge or widen vents and increase number of vents • Check that vents are unplugged • Check that gates are unplugged • Enlarge gates and/or runners • Perform short shots to determine fill pattern and verify proper vent location • Increase wall thickness to move gas trap to parting line • Increase cushion Brittleness Melt temperature too low Degraded/Overheated material Gate location and/or size • Increase melt temperature • Increase injection speed • Measure melt temperature with pyrometer • Decrease melt temperature • Decrease back pressure • Use smaller barrel/excessive residence time • Relocate gate to nonstress area • Increase gate size to allow higher flow speed and lower molded-in stress Fibers on Surface (Splay) Melt temperature too low Insufficient packing • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase pack and hold pressure, and time Sink Marks Part geometry too thick Melt temperature too hot Insufficient material volume • Reduce wall thickness • Reduce rib thickness • Decrease nozzle and barrel temperatures • Increase shot size • Increase injection rate • Increase packing pressure Flash Injection pressure too high Excess material volume Melt and/or mold temperature too hot • Decrease injection pressure • Increase clamp pressure • Decrease injection speed • Increase transfer position • Decrease pack pressure • Decrease shot size • Decrease injection speed • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease screw speed TROUBLESHOOTING RECOMMENDATIONS PROBLEM CAUSE SOLUTION Excessive Shrink Too much orientation • Increase packing time and pressure • Increase hold pressure • Decrease melt temperature • Decrease mold temperature • Decrease injection speed • Decrease screw rpm • Increase venting • Increase cooling time Not Enough Shrink Too little orientation • Decrease packing pressure and time • Decrease hold pressure • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase screw rpm • Decrease cooling time Burning Melt and/or mold temperature too hot Mold design Moisture • Decrease nozzle and barrel temperatures • Decrease mold temperature • Clean, widen and increase number of vents • Increase gate size or number of gates • Verify material is dried at proper conditions Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Weld Lines Melt front temperatures too low • Increase pack and hold pressure • Increase melt temperature • Increase vent width and locations • Increase injection speed • Decrease injection speed • Increase gate size • Perform short shots to determine fill pattern and verify proper vent location • Add vents and/or false ejector pin • Move gate location Warp Excessive orientation • Increase cooling time • Increase melt temperature • Decrease injection pressure and injection speed • Increase number of gates Sticking in Mold Cavities are overpacked Part is too hot • Decrease injection speed and pressure • Decrease pack and hold pressure • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time • Increase draft angle • Decrease nozzle and barrel temperatures • Decrease mold temperature TROUBLESHOOTING RECOMMENDATIONS Note: These are general processing conditions.

To pre-register for the conference call and obtain a dial-in number and passcode, please click here. Avient Corporation's (NYSE: AVNT) purpose is to be an innovator of materials solutions to help our customers succeed, while enabling a sustainable world.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. OUR STRATEGY Specialization Differentiates us through unique value-creating offerings to our customers. Globalization Positions us to serve our customers consistently, everywhere in the world.

Various color options and customization Browse and download our literature to learn more about Avient solutions and services. Product/Service Overview

LUXEMBOURG – October 12, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today unveiled new bio-filled polymer grades at the international trade fair for plastics processing, Fakuma.  Visitors are invited to hall B5 - stand 5316 to discuss their design and material challenges and learn more about Avient’s sustainable solutions and services portfolio:  Nymax™ PIR post-industrial recycled nylon formulations: This portfolio features standard and custom-formulated nylon 66 and nylon 6 grades.

NYSE: POL), a premier provider of specialized polymer materials, services and solutions, today announced that is a premier provider of specialized polymer materials, services and solutions. is committed to its customers, employees, communities and shareholders through ethical, sustainable and fiscally responsible principles.