https://www.avient.com/sites/default/files/2024-03/QF-02 QMS Global Standard Response.PDF
Please check
our certificate library here.
Detailed information on a site specific basis can be found in Avient’s Global Certificate Library here.
Standard handling time frame:
1 Business Day to
confirm receipt and
r .ecord it in our system
15 Business days to
analyze problem,
provide root cause
and action plan.
30 days to close
complaint
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8
The overall processing times may vary depending on the complexity of the issue and resources needed.
https://www.avient.com/resources/safety-data-sheets?page=5220
YELLOW 20-410 DISC TOP
YELLOW 24-410 DISC TOP
PINK 20-410 DISC TOP
https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/lubrione-internally-lubricated-formulations
Explore What's Possible
Explore What's Possible
Explore What's Possible
https://www.avient.com/products/polymer-colorants/high-temperature-color-concentrates/colorant-chromatics-pes/psu/ppsu-colorants
Explore What's Possible
Explore What's Possible
Browse our library of product data sheets containing technical descriptions and details.
https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/artisan-pre-colored-thermoplastics-premium-finishes
Explore What's Possible
Explore What's Possible
Browse our library of product data sheets containing technical descriptions and details.
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Explore What's Possible
Browse our library of product data sheets containing technical descriptions and details.
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Browse our library of product data sheets containing technical descriptions and details.
https://www.avient.com/sites/default/files/2020-12/artisan-thermoplastics-nylon-processing-guide.pdf
Processing Guidelines
Base Resin PA6
Barrel Temperatures °F °C
Rear Zone 440–470 227–243
Center Zone 450–480 232–249
Front Zone 460–490 238–254
Nozzle 470–500 243–260
Melt Temperature 470–500 243–260
Mold Temperature 120–180 49–82
Pack and Hold Pressure 50–75% of Injection Pressure
Injection Velocity 0.5 in/s–3 in/s 13 mm/s–76 mm/s
Back Pressure 50–100 psi 3.4–6.9 Bar
Screw Speed 30–70 rpm
Cushion 0.25 in 6.35 mm
Drying Parameters 2–4 Hours @ 180°F 2–4 Hours @ 82°C
Moisture % Allowable 0.08–0.18%*
Screw Type General Purpose Screw
Screw Compression Ratio 2.0:1– 2.5:1
Screw L/D 20:1
Non-return Check Valve Free Flow Check Ring
Nozzle Type Reverse Taper
Clamp Pressure 2–3 Tons/in²
Barrel Capacity 30-80% of barrel should be used
* Avient suggests measuring moisture using a Karl Fischer method or Vapor Pro® moisture analyzer that titrates only for moisture.
HDPE is not recommended
for purging as it can cause delamination or lead to black specks.
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
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Copyright © 2020, Avient Corporation.
https://www.avient.com/sites/default/files/2021-11/artisan-ar7300-pre-colored-formulation-processing-guide.pdf
BASE RESIN ABS
Drying Temperature 80–90°C
Drying Time 2–3 Hours
Barrel Temperatures °C
Rear Zone 180–210
Center Zone 190–220
Front Zone 200–230
Nozzle 210–240
Mold Temperature 50–80
Screw Speed Moderate
Back Pressure 3–10 bar
Cushion 5–15 mm
Injection Speed Low to medium
Injection Pressure Moderate to high
Holding Pressure 10–30% of injection pressure
Screw Type General purpose
Screw L/D 20:1
Screw Compression Ratio 2.0:1–2.5:1
Non-return Check Valve Free flow check ring
Nozzle Type Reverse taper
Barrel Capacity 30–80% of barrel should be used
STARTUP & SHUTDOWN RECOMMENDATIONS
Purge Compound
2–3 melt flow PP or purging compound.
HDPE is not recommended for purging
as it can cause delamination or lead to black specks.
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
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 and/or mold
temperature 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
TROUBLESHOOTING RECOMMENDATIONS
PROBLEM CAUSE SOLUTION
Warp
Process related
• Increase melt temperature
• 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
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
TROUBLESHOOTING RECOMMENDATIONS
1.844.4AVIENT
www.avient.com
Copyright © 2021, Avient Corporation.
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