Processing efficiency: In a competitive market, manufacturers want to maximize output, so choosing a material that processes well at good line speed is also essential. E-Beam requires heavy investment in E-radiation machinery, although it enables faster line speeds. They are cross-linked using sioplast technology and offer good processing and line speeds.

These materials are based on select engineering thermoplastic resins that are formulated with reinforcing additives such as carbon fiber, glass fiber and glass beads. Venting • Place vents at the end of fill and anywhere potential knit/weld lines will occur. • All vents need to be vented to atmosphere. • For circular parts, full perimeter venting is recommended. • Cut vent depths to: - PPA Compounds: 0.0015"–0.0025" depth and 0.250" width - PC Compounds: 0.002"–0.004" depth and 0.250" width - PSU Compounds: 0.003"–0.004" depth and 0.250" width - PES Compounds: 0.003"–0.004" depth and 0.250" width - PPS Compounds: 0.002"–0.003" depth and 0.250" width - Acetal Compounds: 0.0015" minimum depth and 0.250" width - PEEK Compounds: 0.002"–0.004" depth and 0.250" width - Nylon Compounds: 0.002" minimum depth and 0.250" width • Increase vent depth to 0.060" (1.5mm) at 0.250" (4.0mm) away from the cavity and vent to atmosphere. 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 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 www.avient.com Copyright © 2020, Avient Corporation.

By lowering the friction and reducing melt-fracture and die buildup, CESA Process Additives enable difficult-to-process materials such as narrowmolecular-weight LLDPE and LLDPE-rich blends to run on existing extrusion lines. Enables difficult-to-process materials to run on existing extrusion lines

Contract manufacturer reduces rejects, adds $100,000 to annual bottom line All told, these improvements contributed to more than $100,000 annually in savings to the manufacturer’s bottom line.

Long Fiber Technologies Application Development Avient Long Fiber Technology Complēt REC Long Fiber Reinforced Thermoplastics

Contract manufacturer reduces rejects, adds $100,000 to annual bottom line All told, these improvements contributed to more than $100,000 annually in savings to the manufacturer’s bottom line.

Contract manufacturer reduces rejects, adds $100,000 to annual bottom line All told, these improvements contributed to more than $100,000 annually in savings to the manufacturer’s bottom line.

Contract manufacturer reduces rejects, adds $100,000 to annual bottom line All told, these improvements contributed to more than $100,000 annually in savings to the manufacturer’s bottom line.

The Nymax™ / Bergamid™ line of crystalline materials features standard and custom-formulated nylon 6 and nylon 66 grades, as well as other nylon copolymer grades which can be combined with a wide range of reinforcements, modifiers, and fillers. Provided color matching expertise to match glass fiber reinforced formulation to specific customer requirement Nymax™ Glass and Mineral Fiber Reinforced Nylon 6 Formulation delivers service and performance for transportation OEM

In line with the continuing drive towards greater sustainability and circularity in the industry, we will demonstrate our latest advances in materials science at Chinaplas, from specialty colorants and color prediction to bio-based thermoplastic elastomers (TPEs) and engineered materials,” says Say-Eng Lee, Vice President and General Manager, Color & Additives Asia for Avient. Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports   Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility