We thank you for your understanding, and we look forward to serving your needs. 3 Table of contents A Message from our Global Quality Manager ...............................................................2 Avient Corporation: Overview ............................4 Avient Policy for Customer Audits ......................5 Management Responsibility ...............................6 Product Liability Insurance .............................6 Ethics - Code of Conduct.................................6 Modern Slavery Statement.............................6 Conflict Mineral Policy....................................6 Technical Data Sheets.....................................6 Safety Data Sheets..........................................6 Regulatory Requests and Certificates (FDA certificate, Absence declaration, REACH, SDS) ........................................6 Safety Performance ........................................6 Environmental Performance...........................6 Energy Management ......................................6 Business Continuation Plan.............................6 Preventive - Predictive Maintenance..............6 Financial Report..............................................6 Quality Management..........................................7 3rd Party Certification......................................7 Complaint Handling ........................................7 Continuous Improvement...............................7 Traceability .....................................................7 Record Retention............................................7 IT Security.........................................................8 Firewall .........................................................8 Critical Data ..................................................8 IT Disaster Recovery .....................................8 IT Systems of Use Policy ...............................8 Annex 1 - Special dispositions related to ISO 13485 certification for Mevopur .......................9 Change control .............................................9 Validation .....................................................9 Control of documents and records ...............9 Supplier approval and supplier evaluation ...9 Traceability ...................................................9 Material management ..................................9 Release of finished products.........................9 Control of Non-conforming products, complaints handling, recall and CAPA..........9 Annex 2 – special dispositions related to ISO 22000 certification............................................10 Change..........................................................10 HACCP ..........................................................10 Control of documents and records ...............10 Material management ..................................10 Supplier approval and supplier evaluation ...10 Traceability ...................................................10 Release of finished products.........................10 Control of Non-conforming products, complaints handling, recall and CAPA..........10 4 Avient Corporation: Overview The Avient website is your home base for information about the company: http://www.avient.com/ To find our facility locations: http://www.avient.com/contact/global-directory-and-contacts For more information about our management systems certifications, including ISO, go to: http://www.avient.com/company/sustainability/environmental/global-iso-certificate-library Avient Governance (corporate policies and the Avient Code of Conduct): http://www.avient.com/investors/governance Financial reports: https://www.avient.com/investors Avient Sustainability Report: https://www.avient.com/company/sustainability http://www.avient.com/ http://www.avient.com/contact/global-directory-and-contacts http://www.avient.com/company/sustainability/environmental/global-iso-certificate-library http://www.avient.com/investors/governance https://www.avient.com/investors https://www.avient.com/company/sustainability 5 Avient Policy for Customer Audits Avient may permit audits of facilities, subject to:  Advanced notice and an audit agenda provided at least thirty (30) days in advance or as agreed by the Avient location to be audited for a routine audit.  Audits must be conducted during normal business hours.  Audits may require a signed Non-Disclosure Agreement (NDA) prior to the audit. Information that Avient considers as confidential and will not communicate through questionnaires:  Building and facilities figures  Workforce effective  Organization charts  Shift organization  Unions affiliations  Customers  Suppliers  Procedures  Work instructions  Quality Manuals  FMEA/CCP  Control plans http://www.avient.com/company/sustainability/environmental/global-iso-certificate-library https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/company/sustainability/sustainability-report/people/human-rights https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/company/policies-and-governance-0/global-iso-certificate-library https://www.avient.com/resources/safety-data-sheets https://www.avient.com/resources/technical-data-sheets https://www.avient.com/company/sustainability/people/safety https://www.avient.com/company/sustainability/sustainability-report/planet/energy-ghg-emissions https://www.avient.com/investors/investor-news? IT Systems of Use Policy This Policy is available here. https://www.avient.com/company/policies-and-governance/it-systems-use-policy 9 10 Annex 1 - ISO 13485 certification for Mevopur manufacturing sites North America & EMEA.

N0186567D 2020 Existen asientos de presentación vigentes No existen situaciones especiales Esta informacion se expide con referencia a los datos incorporados al archivo informático del Registro Mercantil y tiene un valor meramente informativo.

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A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations shortly after the live webcast. http://www.avient.com/investors https://sustainabilityday2023.avient.com/ http://www.avient.com/investors https://register.vevent.com/register/BI0b9400e410674b9d9dc80471579b64b9 https://www.avient.com/investors/events-presentations About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Rose Vice President, Marketing and Communications +1 440-930-3162 kyle.rose@avient.com http://www.avient.com/ http://www.avient.com/news mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com

Their use is subject to conditions available at https://www.sustainalytics.com/legal-disclaimers ISS DISCLAIMER STATEMENT E&S Disclosure QualityScore measures and identifies risk in environmental and social areas of concern through thorough analysis of company disclosures. Read more: https://www.issgovernance.com/esg/ratings/ http://www.sustainalytics.com/ https://www.sustainalytics.com/legal-disclaimers https://www.issgovernance.com/esg/ratings/

Continue fostering our Great Place to Work® culture Strategic Objectives Long Term Growth Rates Growth Drivers $340 $455 $790 $1,120 2016 2018 2020 2023E $51 $84 $212 $650 2016 2018 2020 2023E $108 $113 $231 $230 2016 2018 2020 2023E $265 $358 $726 $730 2016 2018 2020 2023E 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable Growth Great Place to Work 5.4% 10.9% 16.0% 2006 2014 2023E EBITDA Margins $0.14 $1.93 $2.30 2006 2014 2023E Adjusted EPS TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 3 5 87th 94th percentile 5 Innovation is the lifeblood of a specialty company. PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.47 2022 PF 2023 Adjusted EPS (in millions) - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 16 $112 $500 Q4 FY $0.47 $2.30 Q4 FY Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Q4 FY Sales Adjusted EBITDA Adjusted EPS 17 (in millions) (in millions) Guidance: Free Cash Flow $180 $180 Prior Guidance Guidance FREE CASH FLOW & INCREASED DIVIDEND 13th Consecutive Dividend Increase 0.16 0.26 0.42 0.58 0.79 0.85 0.99 1.03 2011 2013 2015 2017 2019 2021 2023 2024 18 S U S TAI NABI L I T Y DAY RE CAP SUSTAINABILITY AS A GROWTH DRIVERLONG-TERM REVENUE GROWTH DRIVERS 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other (GDP growth) 0–2% Avient 6% 20 SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 18 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) Sources: McKinsey, Bloomberg, Grand View Research SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 21 • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 16.0% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ ADJUSTED EBITDA MARGIN EXPANSION 22 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 23 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of December 29, 2023 Note: Avient reflects 2023 estimated revenue of $3,130 and estimated run-rate CAPEX of $110M. 26 3.5 1.8 2.7 3.1 3.3 3.7 3.0 3.7 4.7 4.8 6.8 6.8 8.7 11.1 Av ie nt KW R FU L PP G AV Y R PM FM C H U N C E EC L H XL AS H EM N SC L FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of December 29, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Discover advanced material solutions so you can solve tough challenges and leave the competition in your wake. 1.844.4AVIENT avient.com © 2025, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 TACTILE EXPERIENCE Soft Touch Feel, Wet Grip, Durable Performance, Reduced Heat Transfer SOLUTION: Thermoplastic Elastomers (TPEs), UV Blocking Additives, “Cooler to the Touch” Colorants METAL REPLACEMENT High Impact Resistance, Durability, Vibration Damping Properties, Weight Reduction, Design Flexibility SOLUTION: Long Glass Fiber Reinforced Composites, Chemical Foaming Agents WOOD REPLACEMENT & WEIGHT REDUCTION Exceptional Strength-to-Weight Ratio, Resistance to Chemicals and Moisture Degradation, Strong Adhesive Properties for Simplified Installation SOLUTION: Composite Sandwich Panels, Chemical Foaming Agents, Wood Plastic Composite (WPC) Technology, Continuous Fiber Reinforced Thermoplastic Tape & Laminates, Pultruded Composite Profiles HIGH IMPACT DURABILITY High Strength Performance, Localized Reinforcement, Material Reduction SOLUTION: Continuous Fiber Reinforced Thermoplastic Tape & Laminates CORROSION & MOISTURE RESISTANCE Extended Performance, Low Moisture Uptake, Durability SOLUTION: Moisture-Resistant Long Fiber Reinforced Composites, Corrosion Resistant Additives, Composite Sandwich Panels AESTHETIC APPEAL Custom Color and Special Effects, Paint Replacement, Color Fade Protection SOLUTION: Custom Polymer Colorants, UV Blocking Additives, Antioxidant Additives, Molded-In-Color Metallics, Scratch & Mar Additives, Laser Marking Additives, Pre-Colored High-Gloss Thermoplastics http://www.avient.com https://www.avient.com/products/thermoplastic-elastomers/versaflex-thermoplastic-elastomers https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/cesa-light-additives https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/oncolor-wpc-capstock-technology https://www.avient.com/products/long-fiber-technology/complet-long-glass-fiber https://www.avient.com/products/long-fiber-technology/complet-long-glass-fiber https://www.avient.com/products/polymer-additives/foaming-agents https://www.avient.com/products/advanced-composites/continuous-fiber-composite-panels/hammerhead-marine-composite-panels https://www.avient.com/products/polymer-additives/foaming-agents https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/oncolor-wpc-capstock-technology https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-pultruded-rods-tubes-custom-profiles https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/long-fiber-technology/complet-moisture-resistant-nylons https://www.avient.com/products/long-fiber-technology/complet-moisture-resistant-nylons https://www.avient.com/products/polymer-additives/corrosion-resistant-additives/cesa-cor-additives https://www.avient.com/products/advanced-composites/continuous-fiber-composite-panels/hammerhead-marine-composite-panels https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-fx-special-effect-colorants https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-fx-special-effect-colorants https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/cesa-light-additives https://www.avient.com/products/polymer-additives/antioxidant-additives https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-fx-paint-replacement-0 https://www.avient.com/products/polymer-additives/visual-enhancement-effects/cesa-scratch-mar-resistance-additives https://www.avient.com/products/polymer-additives/colorants-and-additives-wire-cable/cesa-laser-additives https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/artisan-pre-colored-thermoplastics-premium-finishes https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/artisan-pre-colored-thermoplastics-premium-finishes

For more on material solutions for snowmobiles, visit avient.com © 2025, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 EXTENDED PERFORMANCE Minimize Moisture Uptake from Melted Snow SOLUTION: Moisture-Resistant Long Fiber Reinforced Composites, Corrosion-Resistant Additives TACTILE EXPERIENCE Soft Touch Feel, Durable Performance, Lower Thermal Conductivity than Metals SOLUTION: Thermoplastic Elastomers (TPEs), Long Fiber Reinforced Composites THERMAL MANAGEMENT & SAFETY Heat Dissipation, Design Flexibility, Flame Retardancy SOLUTION: Thermally Conductive Formulations, Flame Retardant Additives HIGH IMPACT DURABILITY High Strength-To-Weight Ratio, Elevated and Low Temperature Performance SOLUTION: Long Carbon Fiber Reinforced Composites, Continuous Fiber Reinforced Thermoplastic Tape & Laminates COLD TEMPERATURE PERFORMANCE Cold Temperature Flexibility and Toughness SOLUTION: Thermoplastic Elastomers (TPEs), Long Fiber Reinforced Composites, Impact Modifiers WEIGHT REDUCTION 40–50% Lightweighting Compared to Metal, Exceptional Structural Properties, Extremely High Stiffness and Strength from -40° to 160°F SOLUTION: Long Carbon Fiber Reinforced Composites, Chemical Foaming Agents AESTHETIC APPEAL Custom Color and Special Effects, Paint Replacement, Color Fade Protection SOLUTION: Custom Polymer Colorants, UV Blocking Additives, Antioxidant Additives, Molded-In-Color Metallics, Scratch and Mar Performance, Laser Marking, Pre-Colored High-Gloss Thermoplastics https://www.avient.com/industries/consumer/consumer-discretionary/outdoor-recreation/powersports https://www.avient.com/products/long-fiber-technology/complet-moisture-resistant-nylons https://www.avient.com/products/polymer-additives/corrosion-resistant-additives/cesa-cor-additives https://www.avient.com/products/thermoplastic-elastomers/versaflex-thermoplastic-elastomers https://www.avient.com/products/long-fiber-technology https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma-tech-thermally-conductive-formulations https://www.avient.com/products/polymer-additives/colorants-and-additives-wire-cable/cesa-flame-retardant-additives https://www.avient.com/products/long-fiber-technology/complet-long-carbon-fiber https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/thermoplastic-elastomers/onflex-thermoplastic-elastomers https://www.avient.com/products/long-fiber-technology https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-combination-colorants-additives https://www.avient.com/products/long-fiber-technology/complet-long-carbon-fiber https://www.avient.com/products/polymer-additives/foaming-agents https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-fx-special-effect-colorants https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/cesa-light-additives https://www.avient.com/products/polymer-additives/antioxidant-additives https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-fx-paint-replacement-0 https://www.avient.com/products/polymer-additives/visual-enhancement-effects/cesa-scratch-mar-resistance-additives https://www.avient.com/products/polymer-additives/colorants-and-additives-wire-cable/cesa-laser-additives https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/artisan-pre-colored-thermoplastics-premium-finishes

SENSORY EXPERIENCE Wear Resistance, Noise Reduction, Low Friction SOLUTION: Internally Lubricated Formulations, Thermoplastic Elastomers, Scratch and Mar Resistant Additives POSSIBILITIES: Gears, Gaskets, Hood Dampers, Seating Systems STRUCTURAL INTEGRITY High Stiffness-to-Weight Ratio, Metal Replacement, Part Consolidation SOLUTION: Long Fiber Reinforced Composites POSSIBILITIES: Seat Base, Brake Pedal, Frame, Floor Pan, Controls EXTREME PERFORMANCE Chemical & Fire Resistance, Extreme Temperature Performance, Thermal Management, Lightweighting SOLUTION: Engineered Nylon Formulations, Flame Retardant Polyolefin Formulations, Engineered Polyketone Formulations, Thermally Conductive Formulations, Chemical Foaming Agents POSSIBILITIES: Under-the-Hood Applications, Electrical Connectors, Battery Assembly Housings, Exterior Trim and Equipment THERMAL MANAGEMENT Heat Dissipation, Flexible Design SOLUTION: Thermally Conductive Formulations POSSIBILITIES: LED Lights, Heat Sinks AESTHETIC APPEAL Custom Color, Special Effects, Paint Replacement, Corrosion Resistance, UV Stability SOLUTION: Custom Pre-Colored Formulations, Pre-Colored High-Gloss Thermoplastics, Solid Color Masterbatches POSSIBILITIES: Body Panels, Pedals, Control Grips, Bezels, Brand Elements TACTILE EXPERIENCE Soft-Touch Feel, Durable, Wet Grip Performance, Color Customization, UV Stability, Ergonomic Design, Overmolding SOLUTION: Thermoplastic Elastomers, Combination Colorant and Additive Formulations, Fabric-Effect Colorants and Additives POSSIBILITIES: Steering Wheel, Switches, Knobs © 2024, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/lubrione-internally-lubricated-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/lubrione-internally-lubricated-formulations https://www.avient.com/products/thermoplastic-elastomers/tpe-knowledge-center https://www.avient.com/products/thermoplastic-elastomers/tpe-knowledge-center https://www.avient.com/products/polymer-additives/visual-enhancement-effects/cesa-scratch-mar-resistance-additives https://www.avient.com/products/polymer-additives/visual-enhancement-effects/cesa-scratch-mar-resistance-additives https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/complet-long-fiber-reinforced-structural-thermoplastics https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/complet-long-fiber-reinforced-structural-thermoplastics https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax-bergamid-polymer https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax-bergamid-polymer https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/maxxam-fr-flame-retardant-polyolefin-formulations https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/maxxam-fr-flame-retardant-polyolefin-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/edgetek-pke-polyketone-formulations https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma-tech-thermally-conductive-formulations https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma-tech-thermally-conductive-formulations https://www.avient.com/products/polymer-additives/foaming-agents/hydrocerol-chemical-foaming-agents https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma-tech-thermally-conductive-formulations https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma-tech-thermally-conductive-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/custom-pre-colored-specialty-engineered-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/artisan-pre-colored-thermoplastics-premium-finishes https://www.avient.com/products/polymer-colorants/solid-color-masterbatches https://www.avient.com/products/thermoplastic-elastomers/tpe-knowledge-center https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-combination-colorants-additives https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-fabric-fx

PROBLEM CAUSE SOLUTION Incomplete Fill Melt and/or mold temperature too cold Mold design 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 shot size • 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 • Increase shot size • Increase gate size Sink Marks Part geometry too thick Melt temperature too hot Insufficient material volume • Reduce wall thickness • Reduce rib thickness • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase shot size • Increase injection rate • Increase packing pressure • Increase gate size 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 • Decrease injection speed • 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 Mold design • Increase pack and hold pressure • Increase melt temperature • Increase vent width and locations • Increase injection speed • Increase mold temperature • 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 Mold design • Increase cooling time • Increase melt temperature • Decrease injection pressure and injection speed • Increase number of gates Sticking in Mold Cavities are overpacked Mold design 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 • Increase cooling time TROUBLESHOOTING RECOMMENDATIONS www.avient.com Copyright © 2020, Avient Corporation.