Fostering better fuel efficiency, fewer emissions, and increased miles per charge, these continuous fiber composites also streamline manufacturing processes for greater productivity.

Maintain a minimum draft angle of 1° per side. 4 Therma-Tech Incomplete Fill Melt and/or mold too cold • Increase nozzle and barrel temperatures • Increase pack and hold pressure • Increase nozzle tip diameter • Check thermocouples and heater bands Mold design • 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 Shot size • Increase cushion • Decrease transfer position Brittleness Low melt temperature • Measure melt temperature with pyrometer Degraded/ overheated material • Decrease melt temperature • Decrease back pressure • Use smaller barrel/excessive residence time • Decrease screw rpm Gate location and/or size • Relocate gate to nonstress area • Increase gate size to allow higher flow rate and lower molded in stress Fibers on Surface (Splay) Melt temperature too low • Increase injection speed • Increase screw rpm Insufficient packing • Increase pack and hold pressure, and time Processing Guide 5 Sink Marks Part geometry too thick • Reduce wall thickness • Reduce rib thickness • Maintain nominal wall thickness Melt too hot • Decrease nozzle and barrel temperatures Insufficient material volume • Increase pack pressure/time Flash Injection pressure too high • Decrease injection pressure • Increase clamp pressure • Increase transfer position Excess material volume • Decrease pack pressure • Decrease shot size Melt and/or mold too hot • Decrease screw speed Excessive Shrink Too much orientation • Increase packing time and pressure • Increase hold pressure • Decrease melt temperature • Decrease injection speed • Decrease screw rpm • Increase venting Not Enough Shrink Too little orientation • Decrease packing pressure and time • Decrease hold pressure • Increase injection speed • Increase screw rpm • Decrease cooling time 6 Therma-Tech Burning Melt and/or mold too cold Mold design • Clean, widen and increase number of vents • Increase gate size or number of gates Moisture • 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 are too low • Increase pack and hold pressure • Increase vent width and locations Mold design • 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 • Decrease injection pressure and injection rate Mold design • Increase number of gates Sticking in Mold Cavities are overpacked • Decrease injection rate and pressure • Decrease pack and hold pressure Mold design • Increase draft angle Part is too hot 1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.

Nikrant President, Global Specialty Engineered Materials PolyOne Corporation Page 27 What We Do Concept to Design Specialty Formulations Global Specialty Engineered Materials PolyOne Corporation Page 28 4% Building & 18% Electrical & 16% 5% Transportation 20% 2014 Revenue by Industry Segment 2014 Revenues: $0.6 Billion At a Glance Global Specialty Engineered Materials 44% Europe 33% 19% Latin America PolyOne Corporation Page 29 A Case Study for Transformational Success 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1% 2006 2007 2008 2009 2010 2011 2012 2013 2014 Operating Margin $4 $5 $18 $21 $50 $46 $47 $57 $72 2006 2007 2008 2009 2010 2011 2012 2013 2014 Operating Income ($M) Global Specialty Engineered Materials •Globally harmonized specialty strategy and culture •Value proposition and customer centric selling •Differentiation with innovation and service •Expand technology portfolio with select acquisitions PolyOne Corporation Page 30 2006 2014 From Volume… (lbs in millions) 269 286 +6% $42 $163 2006 2014 To Value Gross Margin ($ in millions) +292% Global Specialty Engineered Materials PolyOne Corporation Page 31 Accelerating Growth Innovation Market Growth Geographic Expansion Collaboration Global Specialty Engineered Materials PolyOne Corporation Page 32 Who We Are Growing With Global Specialty Engineered Materials PolyOne Corporation Page 33 Innovation Pipeline Potential Global Specialty Engineered Materials Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 3 6 2 3 4 4 2 2 1 3 3 1 3 2 1 Breakthrough Platform Derivative Addressable Market ($ millions) $400 $100 $200 PolyOne Corporation Page 34 Megatrends Aligned with Key End Markets Increasing Energy Efficiency Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer Global Specialty Engineered Materials PolyOne Corporation Page 35 >$150M Revenue Potential Advanced Composites Healthcare Key Initiatives Light-weighting >$100M Revenue Potential Global Specialty Engineered Materials PolyOne Corporation Page 36 Platinum Vision 1.1% 8.0% 12.1% 20%+ 2006 2011 2014 2020 Platinum Vision World Class Operating Margin Accelerating Growth Global Specialty Engineered Materials Innovation Market Growth Geographic Expansion Collaboration PolyOne Corporation Page 37 Summary Accelerating growth is #1 priority • Collaboration across PolyOne • Market-driven Innovation • Commercial and Operational Excellence Global Specialty Engineered Materials PolyOne Corporation Page 38 Designed Structures and Solutions PolyOne Corporation Page 39 Custom Engineered 71% Packaging 29% 2%Building & 23% 27% 30% 2014 Revenue by Industry Segment 2014 Revenues: $0.6 Billion At a Glance Designed Structures and Solutions PolyOne Corporation Page 40 Early Progress 1.4% 5.6% 7.3% 2012 2013 2014 Operating Margin $16 $33 $45 2012 2013 2014 Operating Income ($M) • Cultural shift from volume to value • Emphasis on commercial excellence • Mix shift to profitable portfolio of offerings • “Rightsizing” the operational footprint • Deploy Lean Six Sigma Designed Structures and Solutions PolyOne Corporation Page 41 A Lot of Work Remains with Tremendous Upside Potential Guided by our Four Pillar Strategy Specialization Globalization Operational Excellence Commercial Excellence Designed Structures and Solutions Focused on improving: • Quality • On-time Delivery • Operational Efficiency PolyOne Corporation Page 42 Innovating with Cross-Business Unit Technologies Designed Structures and Solutions Specialty Engineered Materials Color and Additives GLS ColorMatrix Geon • Flame retardant solutions • Flexible sound abatement materials • Energy dissipation • Replacement of leaded glass • Foaming technologies • Improved renewable packaging • Next generation barrier packaging • Glass replacement in packaging PolyOne Corporation Page 43 Who We Are Growing With Designed Structures and Solutions PolyOne Corporation Page 44 Security Solutions Aerospace Key Initiatives Architectural Solutions $80M Addressable Market $85M Addressable Market $30M Addressable Market Designed Structures and Solutions PolyOne Corporation Page 45 Platinum Vision 1.4% 5.6% 7.3% 12-14% 2012 2013 2014 2020 Platinum Vision World Class Operating Margin Accelerating Growth Designed Structures and Solutions On-Time Delivery Improving Quality Customer Centric Selling Market Growth Innovation & Collaboration PolyOne Corporation Page 46 Summary Designed Structures and Solutions • Operational improvements to drive quality and service excellence • Continue to invest to optimize and upgrade capabilities to better serve our customers • Execution of four pillar strategy will drive sustained earnings performance • Collaboration will accelerate our success PolyOne Corporation Page 47 Performance Products and Solutions Michael A.

Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation

Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation

Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation

Engineered with short fiber reinforcements to provide precise levels of electrical conductivity

Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation

Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation

These cross bonds prevent the individual chains from slipping, thus preventing plastic flow when heat is added.