CLEVELAND – February 3, 2025 – Avient Corporation, an innovator of materials solutions, today announced the availability of Cesa™ WithStand™ SX Low Haze Antimicrobial Additives for clear polycarbonate and plexiglass applications. This patent-pending next-generation formula is especially useful for products incorporating recycled resin. Traditional antimicrobials often cause opacity or hazing in polycarbonate or acrylic.

Polycarbonate Omnicolor™ Multipurpose Colorants offered versatile solution across resins and low LDR Omnicolor™ Multipurpose Colorants provided resin compatibility for respiratory accessory parts

For all HB references, the color concentrates are listed with reference to resin chemistry, which enables total flexibility of choice for the resin grade. For V-0, V-1, V-2, 5VA and 5VB, the color concentrates have to be listed with reference to specific resin grades. If the required resin is not listed under Avient concentrates, please contact an Avient representative to discuss more options.

Depending on your application needs, we also can customize formulations with other base resins to deliver the right solution and help you deliver a better end product. Edgetek™ Polycarbonate Laser Welding Formulations - Video

For all HB references, the color concentrates are listed with reference to resin chemistry, which enables total flexibility of choice for the resin grade. For V-0, V-1, V-2, 5VA and 5VB, the color concentrates have to be listed with reference to specific resin grades. If the required resin is not listed under Avient concentrates, please contact an Avient representative to discuss more options.

We can provide bio-based solutions for polyethylene, polypropylene, polycarbonate, styrenics and ABS. The bio-based content of the carrier resin varies from 70% to 95% and even 100% in some cases. Bio-based content of carrier resin between 70-100%

Cesa™ Flame Retardant Additives PTFE-free and Non-halogen for Polycarbonate Polycarbonate is a material of choice for E&E products as it provides very good impact strength, dimensional stability, and heat resistance.Some applications require the use of flame-retardant solutions to increase safety and ensure compliance with fire hazard standards. Avient’s PTFE-free and non-halogen Cesa™ Flame Retardant Additives for polycarbonate are formulated without PTFE and are non-halogen in accordance with the IEC 61249-2-21 standard. They also offer the ability for producers seeking more flexibility in managing plastic material inventory to store large quantities of virgin or recycled resin and order flame-retardant concentrates as needed for individual projects.

Cesa™ WithStand™ SX Low Haze Antimicrobial Additives PRODUCT BULLETIN Cesa™ WithStand™ SX Low Haze Antimicrobial Additives counteract bacteria, fungi, and microbes to enhance the performance of clear polycarbonate or plexiglass applications that require visual clarity. The patented formula of Cesa WithStand SX is especially suited for those products that use recycled resin, as it will not cause opacity or hazing as traditional antimicrobials often do. KEY CHARACTERISTICS • Patented next-gen formulation that can preserve visual clarity and aesthetics in applications using recycled content • Reduces bacterial, mold, and fungal growth on the surface and through the thickness of the plastic part • Helps reduce odor, staining, discoloration, and loss of mechanical properties • Available for various processes including extrusion, injection molding, blow molding, rotational molding, and thermoforming MARKETS & APPLICATIONS These antimicrobial additives are well-suited for clear polycarbonate or plexiglass applications using recycled resin including: • Electronics • Packaging • Consumer goods • Protective shields and sneeze guards • Plexiglass windows or panels • Clear phone or tablet cases • Modular office construction • Point-of-purchase screens • Touchscreen information kiosks • Transportation infotainment screens 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

ColorMatrix™ Optica™ Specialty Toners for PC Polycarbonate is used for the production of automotive interiors and appliances to consumer goods and electronics, replacing more traditional materials such as glass and acrylic. ColorMatrix™ Optica™ Specialty Toners for PC is the cutting-edge liquid toner for polycarbonate resins that provides visual clarity for PC and improves aesthetics on the product surface. This solution offers better color consistency and better color dispersion in transparent PC resins, helping to retain transparent properties and preventing contamination by keeping production lines clean.

KEY CHARACTERISTICS • Formulated specifically for healthcare product applications • Wide portfolio of polymer additive solutions, including: - Antimicrobial technology - Surface energy modification, including low retention - Authentication technology - Lasermarking - Sterilization and content protection - Processing optimization - FDA compliant resin and color changeover solutions • OnCap HC Plus certified for USP Class VI and ISO 10993 bio-compatibility requirements; includes anti-oxidant, lasermarking, antimicrobial, radiopacifier, anti-stat, and polymer and gamma stabilization performance additives OnCap™ HC & OnCap™ HC Plus Additives for Healthcare PRODUCT BULLETIN INDUSTRY SUPPORT • Supported with a broad range of technical support and services: - Restricted medical-grade raw material selection process - Sampling program - World-class FDA cGMP manufacturing facilities - Batch traceability and formulation lockdown systems - FDA Drug Master Files or Medical Device Files maintenance MARKETS AND APPLICATIONS OnCap HC and OnCap HC Plus Additives are an excellent choice for medical devices and parts, pharmaceutical or cosmetic packaging, and many other healthcare related polymer applications. OnCap HC and HC Plus Additives can be used in a wide range of polymer resins. Polypropylene (PP) Polyethylene (PE) Polystyrene (PS) Thermoplastic Elastomer (TPE) Thermoplastic Polyurethane (TPU) Polyamide (PA) Copolyester (CoPET) Thermoplastic Vulcanizates (TPV) Polycarbonate (PC) Acrylonitrile Butadiene Styrene (ABS) Polycarbonate/ABS (PC/ABS) www.avient.com Copyright © 2020, Avient Corporation.