Homepage // News Center // PolyOne Introduces Excelite™ IM Chemical Foaming Additives for Injection Molding CLEVELAND – August 5, 2019 – PolyOne today announced availability of ColorMatrix™ Excelite™ IM chemical foaming additives (CFAs), formulated specifically for injection molding applications. PHOTO CAPTION: Excelite™ IM chemical foaming additives allow injection molders to reduce weight and density in molded parts such as pallets, crates, storage boxes and more.

GLS™ TPEs - Injection Molding Guide Processing & Design Guides Guide to overmolding material selection, part and mold design, material handling and preparation, TPE injection molding, processing, maximizing adhesion and troubleshooting for GLS™ TPEs

The search led Kruunutekniikka’s design engineering team to Avient. Avient engineered materials that combined the heat transfer and cooling capabilities of metals with the design freedom, weight reduction and cost advantages of conventional thermoplastics. Improved manufacturing: The company realized substantial savings during high-volume production thanks to a switch from die casting to injection molding.

Avient Corporation 3 Simplified Drop Test • 65g steel ball • Dropped from 305mm • Onto 3.175mm thickness flat samples Materials Tested • Standard TPE 30 Shore A • TPU alloy 60 Shore A • Damping TPE 32 Shore A VDT reduces bounce Avient Corporation 4 SIMULATION & CALIBRATION E N 1 6 2 1 - 1 L E V E L 2 Image courtesy of Airobag TV https://www.youtube.com/c/AirobagTV/videos Simulation of Impact A weight dropped onto protective element in contact with rigid substrate https://www.youtube.com/c/AirobagTV/videos Avient Corporation 5 SIMULATION & CALIBRATION E N 1 6 2 1 - 1 L E V E L 2 REFINING THE DESIGN D E S I G N A N D M A T E R I A L C O M B I N A T I O N Avient Corporation 6 • A number of different shapes and designs are created and simulated to determine which one works best • Refining to meet EN standard • VDT TPEs can help reach compliance with EN1621-1 level 2 and EN1621-2 level 1 • Optimum protection can be achieved by combining industrial design and engineering Avient Corporation 7 VALIDATION P R O T O T Y P I N G W I T H 3 D P R I N T I N G 3D Printing Validation -15% -10% -5% 0% 5% 10% Density Tensile Strength // Tear resistance // Rebound resilience 2mm 3D Printed VDT vs Injection Molded VDT can be 3D printed for concept evaluation early in the design process SUMMARY Avient Corporation 8 • Enabled a new, compact design with a customized VDT TPE formulation • Improved user comfort and functionality • Fulfilled EN standards • Reduced number of prototyping tools required • Reduced time spent in product development by 40 percent, enabling faster commercialization of product

Designs traditionally have required lead parts produced by machining or casting.  They wanted an injection moldable material with equivalent radiation shielding performance and the ability to provide uniform shielding with no “hot spots.”  Injection molding also would allow the company to eliminate machining and increase productivity and design freedom for components.

Typically, the amount polymers shrink is consistent and accounted for in component designs which enables the holding of tight design tolerances. Design Freedom From sweeping curves to intricate details, designs that would be cost prohibitive to machine or difficult to cast in metals are easy and inexpensive to repeatedly produce in high volumes using injection molding processing.

Processing & Design Guides Processing & Design Guides Injection molding parameters and troubleshooting recommendations for Gravi-Tech™

When PolyCase Ammunition was getting ready to produce its new line of high performance ammunition, the project team knew they needed a material that would be easily enable them to produce their patent-pending, injection molded projectile designs that function as well or better than conventional lead-core projectiles.  The designs were unique. The Avient team used their extensive knowledge and experience working with high-density polymers to develop a specialized Gravi-Tech™ high-density polymer composite that met PolyCase’s needs and fit the profile of their proprietary injection molding process.

When PolyCase Ammunition was getting ready to produce its new line of high performance ammunition, the project team knew they needed a material that would be easily enable them to produce their patent-pending, injection molded projectile designs that function as well or better than conventional lead-core projectiles.  The designs were unique. The Avient team used their extensive knowledge and experience working with high-density polymers to develop a specialized Gravi-Tech™ high-density polymer composite that met PolyCase’s needs and fit the profile of their proprietary injection molding process.

When PolyCase Ammunition was getting ready to produce its new line of high performance ammunition, the project team knew they needed a material that would be easily enable them to produce their patent-pending, injection molded projectile designs that function as well or better than conventional lead-core projectiles.  The designs were unique. The Avient team used their extensive knowledge and experience working with high-density polymers to develop a specialized Gravi-Tech™ high-density polymer composite that met PolyCase’s needs and fit the profile of their proprietary injection molding process.