GUIDELINES FOR USING CESA CLEAN ADDITIVES • Cesa Clean works best when molded maintaining normal (injection) pressure/shear • For best results, Avient recommends a “Running Color Change” which eliminates breaks in the molding cycle • Since the Cesa Clean concentrate will expand, it is recommended to reduce the shot size by 20% • It is designed for use at a let-down ratio (LDR) of 3.0% or (33:1); however, use rate can vary depending on the severity of the contamination but typically is 2.0–4.0% (a use rate higher than 6.0% may not have any positive affect on the cleaning performance) • Using Cesa Clean as a routine part of your color change rotation will allow faster changes and consume a minimal amount of raw material - Note: If the manifold is not cleaned routinely, this process may be more time consuming and additional material will be required • It is best to process at your normal polymer processing temperatures - For best performance, stock temperature should be at least 400°F - If 400°F is achieved during the purging process, no additional activation will occur during the reprocessing of regrind - All parts produced during the “Running Purge Cycle” should be captured as regrind, resulting in a scrap-free color change - If using sequential gates, open and close all gates at the same time while purging the tool - If contamination appears to be coming from one gate, open and close first, and for an extended period of time, to force more material through this location - When cleaning in this manner, pay close attention to shot size - Parts containing the previous or new color plus any Cesa Clean can be used as regrind INTRODUCING CESA CLEAN TO YOUR PROCESS Hand Blend • Hand weigh enough of the Cesa Clean and natural resin mix to equate to 3–5 times the barrel capacity • Use rate should be 3.0% or 33:1 for routine cleaning • For difficult-to-clean tooling, or tooling which is not routinely cleaned, start at 4.0% or 25:1 • Note: Do not attempt to vacuum load more than 15 feet from source as stratification/separation may occur Volumetric Feeder • Calibrate feeder to dispense 3.0% or 33:1 for routine cleaning • For difficult-to-clean tooling, or tooling which is not routinely cleaned, start at 4.0% or 25:1 • This style of feeder is highly recommended for at-the-throat metering of Cesa Clean Blending Units Most blenders have an extra bin for an additive • Fill the additive bin with Cesa Clean • Set blender to introduce the Cesa Clean at 2.0 to 4.0% • Note: Do not air convey any further than 15 feet as Cesa Clean has a high density and may separate from the mix. GETTING STARTED TIMING IS THE KEY TO A RUNNING COLOR CHANGE Hand Blend • Have the purge blend ready to load • If hopper contains a mixture of resin, color and/ or regrind, it should be run dry or drained before beginning the color change, keeping the screw full so press cycle continues • Run the main resin hopper dry or shut off hopper to hand feed at the throat • Once press is clean, slide hopper in place and proceed with next color-resin blend • The next color can be added while Cesa Clean is still in the barrel • When splay is no longer visible in parts, reset shot size, parts should be ready to pack (Single) Volumetric/Gravimetric Metering Unit at the Throat • Empty and clean feeder while press continues to run • Add Cesa Clean to the feeder color hopper and calibrate to a 3.0% use rate • When press is clean, start next color • When splay is no longer visible in parts, reset shot size, parts should be ready to pack • Note: If an open/unused secondary feeder is installed, use it for the Cesa Clean concentrate Central Blending Unit • Thoroughly clean unit while continuing to mold parts, keeping a resin feed to the press • Using a clean open hopper or regrind hopper, add the Cesa Clean concentrate • Set blender for additive/color to 3.0% • Once press is clean, drain hopper and/or central blending unit while continuing to mold parts • Begin new color and continue to mold parts • When splay is no longer visible in parts, reset shot size, parts should be ready to pack Process Adjustments That Can Help • Increase back pressure • Increase screw speed • Increase injection speed (in some tools maximum injection speed can facilitate cleaning) • Reduce mold close time (faster cycle) • Always remember a stock temperature of 400°F is essential When press and tool are clean, return all settings to standard production process profile.

COOKWARE MANUFACTURER A I R F R Y E R W I N D O W • Clear, FDA food-contact compliant material that can be run through a dishwasher • Able to withstand long-term steam and heat • Allows injection molding of a complex shape with aesthetics that convey cleanliness and quality • Added concentrate to a natural PES material allowing it to retain clarity and aesthetics in an FDA-compliant solution • Enabled material to withstand sterilization and maintain continuous heat resistance • Provided a more pleasing appearance that could command a greater price point due to perception of higher quality Colorant Chromatics™ PESU Concentrate KEY REQUIREMENTS WHY AVIENT? Neat PESU Modified PESU https://www.avient.com/products/polymer-colorants/high-temperature-color-concentrates/colorant-chromatics-pes/psu/ppsu-color-concentrates-0

LABORATORY EQUIPMENT MANUFACTURER P C R W E L L P L A T E S • Very high level of TiO2 to prevent “cross-talk” between the wells during the qPCR fluorescence testing procedure • Minimized background phosphorescence caused by agglomeration of TiO2 and/or oxidized (stressed) polystyrene • Preservation of polystyrene grade properties • Change control of formulation and manufacturing process • Robust product quality from batch to batch • Developed optimally dispersed, ready-to-use white formulation that maintains adequate signal transmission, as well as minimizing “cross-talk” and background phosphorescence • Optimized the use of general purpose polystyrene (GPPS) for a good balance between melt flow and other physical properties, such as stiffness • Provided comprehensive change control of raw materials and formulation, with a robust manufacturing process and quality control under a third party ISO 13485:2016 certified QMS Mevopur Healthcare Colorants and Formulations – pre-colored solution WHY AVIENT? All Rights Reserved. https://www.avient.com/products/polymer-colorants/healthcare-colorants/mevopur-healthcare-colorants-and-formulations Slide 1: laboratory equipment manufacturer

PRODUCT BULLETIN Stan-Tone™ Colorants Urethane Paste Colorants (PEP & ET) Stan-Tone™ PEP polyester urethane paste colorants are select organic and inorganic pigments dispersed in diethylene glycol adipate. These colorants are compatible with polyester systems, reacting to become part of the final cured product. These colorants are highly compatible with polyether systems, reacting to become part of the final cured product.

OnColor™ Naturals Colorants PRODUCT DESCRIPTION OnColor™ Naturals is a range of colorants formulated with natural pigments derived from plants, flowers, roots and minerals. Mineral and vegetal pigments can be mixed together to adjust color tones and match Pantone or other standard colors. COLOR POSSIBILITIES Vegetal pigments can give vivid color tones while minerals help achieve calmer and earthy hues.

The service delivers flat pricing for lower volumes coupled with fast turnaround in color design and production. It is available in liquid color form for injection molding applications using polyolefin resins. Avient’s exclusive production system specifically addresses the need for small volume requirements of color.

DATA COMMUNICATIONS CABLE MANUFACTURER M I C R O C O A X C A B L E S • Achieve required level of deep black and opacity • Maintain a let down ratio (LDR) of approximately 5% • Ensure there are no clumps in the finished part • Conform to RoHS REACH compliance requirements • Delivered desired level of black and opacity to optimize conductivity • Provided LDR within the acceptable range, resulting in consistent processibility • Formulated a RoHS REACH compliant solution that helped lessen data interference by avoiding clumps in the finished part Colorant Chromatics™ PFA Jet Black KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION COLOR + PERFORMANCE LEARN MORE Copyright © 2021, Avient Corporation. All Rights Reserved. https://www.avient.com/products/polymer-colorants/fluoropolymer-color-concentrates/colorant-chromatics-pfa/mfa-concentrates

AUTOMOTIVE INTERIORS MANUFACTURER I N S T R U M E N T P A N E L • Consistent and customizable color able to support heat and light shielding • Compliance with automotive industry standards • Provided breadth of high-performance custom color solutions that met specific customer needs • Offered dependable quality and technical support from ideation stages through final production while navigating all regulatory requirements Stan-Tone VC and VCP Vinyl Dispersions KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION COLOR + TECHNICAL EXPERTISE © 2024, Avient Corporation, All Rights Reserved. LEARN MORE https://www.avient.com/products/polymer-colorants/colorant-dispersions/stan-tone-vc-and-vcp-vinyl-dispersions Slide 1: Automotive interiors manufacturer

Certificate of Registration 9001:2015 MSP 9001:2015–MSP-ANAB-US (2.0) Page 1 of 2 Certificate of Registration of Quality Management System to ISO 9001:2015 The National Standards Authority of Ireland certifies that: Colorant Chromatics Ab Kroklundsvagen 346 AX-22 320 Odkarby Aland Finland has been assessed and deemed to comply with the requirements of the above standard in respect of the scope of operations given below: The Design, Manufacture and Sales of Fluoropolymer Color Concentrates and Compounds Additional sites covered under this multi-site certification are listed on the Annex (File No. 19.2540/C) Approved by: Geraldine LarkinChief Executive Officer Approved by: Lisa Greenleaf Operations Manager Registration Number: 19.2540/C Certification Granted: May 15, 1997 Effective Date: Oct 20, 2018 Expiry Date: Oct 19, 2021 National Standards Authority of Ireland, 20 Trafalgar Square, Nashua, New Hampshire, NH 03063, USA T +1 603 882 4412 9001:2015–MSP-ANAB-US (2.0) Page 2 of 2 Annex to Certificate Number: 19.2540/C Scope of Registration: The Design, Manufacture and Sales of Fluoropolymer Color Concentrates and Compounds Activity Location Central Management Group, Design, Manufacture Colorant Chromatics Kroklundsvagen 346 AX-22 320 Odkarby Aland Finland File No.: 19.2540/C Headquarters, Sales, Distribution Colorant Chromatics Europe B.V. Hastelweg 269 - 273 NL-5652 CV Eindhoven The Netherlands File No.: 19.2540/B Sales, Distribution Colorant GmbH Justus-Staudt-Strasse 1 Limburg-Offheim Germany 65555 File No.: 19.2540/A Design, Manufacture, Sales, Distribution Chromatics, Inc. 19 Francis J.

INDUSTRIAL EQUIPMENT MANUFACTURER H O U S I N G F O R C R A N E C O N T R O L • High impact performance, charpy notched > 60kJ/m2 • Part assembly: tight dimensional tolerances ±0.05mm • Critical weld lines are invisible on the final part • Red RAL 3020 as branding color • Color stability during injection • Offered a nylon (PA66) formulation with high impact resistance and dimensional stability • Supported injection trials with field technical services • Developed a ready-to-use solution in RAL 3020 with excellent color stability, helping to reduce scrap rate from >50% to 4% • Enabled timely production through fast new developments and samplings • Offered additional color options Bergamid Polyamide Formulations KEY REQUIREMENTS WHY AVIENT? HIGH-IMPACT PA66 + COLOR MATCHING LEARN MORE Copyright © 2025, Avient Corporation.