https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-performance-enhancing-processes/performance-enhancing-coating
Fiber-Line Coatings Selection Guide
Product Selection Guide: Coatings
Product Selection Guide
https://www.avient.com/sites/default/files/2020-12/artisan-thermoplastics-nylon-processing-guide.pdf
ARTISAN™ PRE-COLORED THERMOPLASTICS NYLON (PA6) FORMULATIONS PROCESSING GUIDE 2 Artisan Pre-Colored Thermoplastics Artisan™ Pre-Colored Thermoplastics Artisan™ thermoplastics are vibrant, pre-colored high-gloss, scratch resistant engineered polymers formulated to replace paint for superior results.
Processing Guide 3 Start Up & Shut Down Recommendations Purge Compound 2–3 melt flow PP or purging compound.
Sink Marks Melt too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Insufficient material volume • Adjust transfer position • Increase shot size • Increase injection rate • Increase packing pressure Part geometry too thick • Reduce wall thickness • Reduce rib thickness Processing Guide 5 Troubleshooting Recommendations Problem Cause Solution Flash Injection pressure too high • Decrease injection pressure • Increase clamp pressure • Decrease injection rate • Increase transfer position Excess material volume • Adjust transfer position • Decrease pack pressure • Decrease shot size • Decrease injection rate Melt or mold too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Loose clamp • Reset mold height • Increase clamp tonnage Shrink Too much shrink • Increase cooling time • Decrease mold temperature Too little shrink • Decrease cooling time • Increase mold temperature Burning Process related • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease injection rate • Reduce decompression Mold design • Clean, widen and increase number of vents • Increase gate size to reduce shear Wet material • Verify material is dried at proper condition Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Incorrect nozzle • Use reverse taper tip Weld Lines Melt front temperatures are too low • Increase injection rate • Increase pack and hold pressure • Increase melt temperature • Increase mold temperature Mold design • Increase gate size • Identify end of fill pattern and verify proper vent location • Add vents or increase vent width • Move gate location 6 Artisan Pre-Colored Thermoplastics Problem Cause Solution Warp Process related • Increase melt temp • Reduce injection speed • Increase pack pressure • Increase pack time • Decrease mold temperature • Increase cool time Mold design • Non-uniform mold cooling Part design • Non-uniform wall thickness Thermolator incorrect temperature • Check settings • Inspect thermocouple Sticking in Mold Overfilled cavity • Decrease injection rate and pressure • Decrease hold pressure • Adjust transfer position • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease cooling time Part too hot • Decrease barrel temperature • Decrease mold temperature • Increase cooling time Mold design • Increase draft angle • Polish cores in direction of ejection Black Specks Contamination • Purge machine Degradation • Reduce melt temperature • Reduce screw speed • Reduce back pressure Machine related • Check for wear on screw, barrel or check ring Delamination Process related • Increase melt temperature • Decrease injection speed • Purge barrel to eliminate material contamination Mold design • Reduce sharp corners in material flow path • Increase venting Troubleshooting Recommendations Processing Guide 7 Troubleshooting Recommendations Problem Cause Solution Discoloration Oversheared material • Decrease melt temperature • Decrease injection speed • Reduce residence time Mold design • Increase gate sizing Dry material • Check moisture of material to ensure it is within the recommended moisture percentage for molding 1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.
https://www.avient.com/sites/default/files/2024-03/Nymax _ Nymax REC Processing Guide.pdf
NYMAX™ POLYMER FORMULATIONS PRIME & RECYCLED NYLON THERMOPLASTICS PROCESSING GUIDE 2 Nymax Polymer Formulations Nymax™ and Nymax™ REC Formulations Nymax™ thermoplastics include prime and recycled nylon formulations in both unfilled grades and with various levels of glass fiber and mineral reinforcements.
Injection Molding Parameters Base Resin PA6 PA6 IM/ST PA6 GF PA6 GMF PA66 IM/ST PA66 GF Barrel Temperatures °F (°C) Rear Zone 450–490 (232–254) 440–490 (226–254) 490–510 (254–265) 480–500 (249–260) 510–530 (265–276) 510–530 (265–276) Center Zone 460–500 (238–260) 450–500 (232–260) 500–520 (260–271) 490–510 (254–265) 510–530 (265–276) 520–540 (271–282) Front Zone 470–510 (243–265) 460–510 (237–265) 510–525 (265–273) 500–520 (260–271) 530–550 (276–288) 530–550 (276–288) Nozzle 480–520 (249–271) 470–510 (243–265) 515–530 (268–276) 510–525 (265–273) 530–560 (276–293) 540–560 (282–293) Melt Temperature °F (°C) 480–520 (249–271) 470–510 (243–265) 515–530 (268–276) 510–525 (265–273) 530–550 (276–288) 540–560 (282–293) Mold Temperature °F (°C) 120–180 (49–82) 120–180 (49–82) 120–200 (49–93) 120–200 (49–93) 140–220 (60–104) 140–220 (60–104) Pack and Hold Pressure 50–80% of Injection Pressure Injection Velocity 1.0–4.0 in/sec Back Pressure 25–100 psi Screw Speed 35–80 rpm Drying Parameters 4 hours @ 180°F (82°C) Moisture Allowable 0.1–0.2% Cushion 0.250 in Screw Compression Ratio 2.0:1–2.5:1 Nozzle Type Reverse Taper Clamp Pressure 3–5 tons/in2 Processing Guide 3 Start Up & Shut Down Recommendations Purge Compound Polypropylene Recycling Recycling prime grades up to 20% is permissible and recycling PIR or PCR grades up to 10% is permissible.
Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Incorrect nozzle • Use reverse taper tip Weld Lines Melt front temperatures are too low • Increase pack and hold pressure • Increase melt temperature • Increase injection rate • Increase mold temperature Mold design • 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 Process related • Increase cooling time • Increase melt temperature • Increase pack pressure • Increase pack time • Decrease mold temperature Mold design • Non-uniform mold cooling Part design • Non-uniform wall thickness Thermolator incorrect temperature • Check settings • Inspect thermocouple Processing Guide 7 Troubleshooting Recommendations Problem Cause Solution Sticking in Mold Overfilled cavity • Decrease injection rate and pressure • Decrease pack and hold pressure • Adjust transfer position • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease cooling time Mold design • Increase draft angle • Polish cores in direction of ejection Part is too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.
https://www.avient.com/resource-center/services/polymer-services-knowledge-center
Browse our collection of technical services, guides, articles, and unique resources for engineered polymers that provide you with the information and tools to make informed decisions and maximize your success globally.
Technical Guides
Browse our guides, trend reviews, technical bulletins and frequently asked questions
https://www.avient.com/sites/default/files/2020-10/luxury-closures-gravi-tech-design-guide-2.0-application-specific.pdf
The following design guides should be followed when designing for gussets, and side wall bosses.
Time Graph Design Guide 21 stresses.
Design Guide 27 Blush Root cause: Injecting too quickly through the gate.
https://www.avient.com/sites/default/files/2023-10/Stat-Tech TPE Static Dissipative _ Electrically Conductive Thermoplastic Elastomers Product Overview_A4.pdf
Compared to rubber and silicone alternatives they simplify manufacturing with single-step fabrication, reducing the energy used in production and can be overmolded directly onto non-polar polymer substrates such as polypropylene (PP) and polyethylene (PE).
KEY CHARACTERISTICS • Electrical resistivity range from 10–1010 Ω • Hardness range from 40–85 Shore A • Protects critical electrical components from EMI/RFI • Reduces static build-up • Simplifies manufacturing • Overmolds directly onto polymer substrates • Meets regulatory compliance requirements of ATEX and ESD • Food contact compliance grades are available MARKETS & APPLICATIONS Electrical applications that require a flexible material, and protection from EMI/RFI and static build-up.
https://www.avient.com/sites/default/files/2022-05/OnFlex S HF Electrical Housing Case StudyNEW.pdf
Next, the materials team formulated a grade that would offer enough heat resistance to be overmolded onto polypropylene, the underlying rigid material.
Natural grades can be colored during processing with compatible products from Avient’s OnColor™ color concentrate line. • The non-halogenated solution has a density 0.4 g/cm3 less than a traditional halogenated material, and this density advantage makes it price competitive with the traditional solution. • High-flow properties of OnFlex S HF TPE allow the gaskets to be overmolded in multi-cavity tools (up to 12 cavities per tool).
https://www.avient.com/sites/default/files/2020-10/composites-innovation-cell-program-bulletin_0.pdf
Thermoplastic Composite Innovation Cell Injection and Compression Overmolding HARNESS THE VERSATILITY Are you working on a project that would benefit from added reinforcement, reduced weight, material reduction or part consolidation?
Through injection or compression overmolding, composite tapes and multi- ply laminates are integrated into traditional thermoplastic molding processes to create locally-reinforced, molded components.
https://www.avient.com/products/long-fiber-technology/complet-moisture-resistant-nylons
Processing & Design Guides
Complēt™ and OnForce™ Long Fiber Reinforced Thermoplastic Composites - Design Guide
Processing & Design Guides
https://www.avient.com/sites/default/files/2024-04/SEM_NYMAX_PIR_Grades_Product_Selection_Guide-CN_4.11-2.pdf
SEM NYMAX PIR Grades Product Selection Guide-CN 4.11-2 产品选购指南 尼龙解决方案 工程热塑性塑料 定制尼龙特性 描述 基材 填充料 增韧 润滑 光 稳定性 热 稳定性 阻燃 批准/列名 Bergamid/ Nymax ✓ ✓ ✓ ✓ ✓ 玻璃纤维 玻璃微珠 矿粉 无填充 玻璃纤维 矿粉 无填充 原生料 再生料 汽车行业批准 汽车行业批准 UL列名 NSF 列名 Nymax PIR ✓ ✓ ✓ ✓ NYMAX REC回收尼龙配方 Nymax REC回收尼龙6和尼龙66产品中20-100%来源于后工 业可回收(PIR)和消费后可回收(PCR)成分。