https://www.avient.com/news/polyone-launches-first-ever-tpe-blue-jean-stain-resistance-phone-cases
This new Versaflex offering can be pre-colored to specifications or used with a PolyOne OnColor™ masterbatch colorant.
https://www.avient.com/products/polymer-additives/visual-enhancement-effects/oncolor-lux-colorants
Color Masterbatches: OnColor™
https://www.avient.com/products/polymer-additives/performance-enhancement-additives/cesa-bio-additives
Cesa Bio Additives are not only suitable for your manufacturing process, they also meet relevant industry and composting standards, and can be combined with OnColor™ Bio Colorants to deliver performance and color in a single masterbatch.
https://www.avient.com/products/polymer-additives/surface-modifier-additives/cesa-anti-fog-plus-additives-multilayer-films
They work in both hot and cold fog conditions, and in mono and multilayer film, thanks to a combination of multi-additives in the masterbatch formulation that allows good fog clearance performance before and after lamination.
https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/remafin-ep-white-colorants
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Remafin™ EP White Colorants
https://www.avient.com/resources/safety-data-sheets?page=3624
3133-GY-80 GREY PP MASTERBATCH
Geon(TM) DB4980 Black Slower Gel
X HC5210-0015 ESD Black
https://www.avient.com/sites/default/files/2022-06/Maxxam FR Injection Molding Processing Guide.pdf
Vents should be placed at the intersection of each 90° bend in the runner
system off of the cold slug well and vented to atmosphere
Black Specks
Contamination
• Purge barrel with general purpose PP
• Verify correct nozzle is being used
• Pull screw for cleaning
Degraded/overheated
material
• Decrease melt temperature
• Decrease injection speed
• Use appropriately sized barrel
Brittleness
Degraded/overheated material
• Decrease melt temperature
• Decrease injection speed
• Use appropriately sized barrel
Gate location and/or size
• Relocate gate to nonstress area
• Increase gate size to allow higher flow rate and
lower molded-in stress
Burning
Process related
Mold design • Clean, widen and increase number of vents
• Increase gate size to reduce shear
Fibers/Minerals on
Surface or Uneven
Surface Appearance
Melt temperature too low
• Increase injection speed
Insufficient packing • Increase hold pressure and time
Flash
Injection pressure
too high
• Decrease injection pressure
• Increase clamp pressure
• Increase transfer position
Excess material volume
• Decrease pack pressure
• Decrease shot size
Melt and/or mold too hot
• Decrease screw speed
Loose clamp • Reset mold height
• Increase clamp tonnage
Troubleshooting Recommendations
Incomplete Fill
Melt and/or mold too cold
• Increase nozzle and barrel temperatures
Mold design
• 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
Shot size • Adjust transfer position to 98% full
Nozzle Drool Nozzle temperature too hot
• Decrease nozzle temperature
• Increase screw decompression
Shrink
Too much shrink • Increase cooling time
Too little shrink • Decrease cooling time
Sink Marks
Part geometry too thick • Reduce wall thickness
• Reduce rib thickness
Melt too hot • Decrease nozzle and barrel temperatures
Insufficient material
volume
• Increase packing pressure
Troubleshooting Recommendations (continued)
Sticking in Mold
Overfilled cavity
• Decrease injection rate and pressure
• Decrease hold pressure
• Decrease cooling time
Mold design • Increase draft angle
• Polish cores in direction of ejection
Part is too hot
• Increase cooling time
Warp
Process related
• Increase cooling time
• Increase pack pressure
• Increase pack time
Mold design • Inspect for non-uniform mold cooling
Part design • Inspect for non-uniform wall thickness
Temperature control unit
incorrect temperature
• Check settings
• Inspect thermocouple
Weld Lines
Melt front temperatures
are too low
• Increase pack and hold pressure
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
1.844.4AVIENT
www.avient.com
Copyright © 2022, Avient Corporation.
https://www.avient.com/sites/default/files/2022-06/Nymax BIO Bio-based Polyamide Solutions Processing Guide.pdf
Increase cooling time
Black specks
Contamination 1.
https://www.avient.com/sites/default/files/resources/HIGH_PERFORMANCE_CLEAR_THERMOPLASTICS_ELASTOMER.pdf
Styrene domain is stained black.
https://www.avient.com/sites/default/files/2020-09/cai-healthcare-application-bulletin.pdf
COLORANTS & ADDITIVES
FOR HEALTHCARE
Essential polymer solutions
for critical healthcare applications
WHEN MATERIAL EXPERTISE IS
CRITICAL
AESTHETIC APPEAL
Regulatory compliant and
approved masterbatch colors
use custom polymer colorants
to achieve any shade
SPECIAL EFFECTS
Enhance your brand and stand
apart with pearlescent, metallic,
iridescent, fluorescent or
thermo-chromatic effects
SOLID TO LIQUID
SOLUTIONS
Choose from a full range of
available color solutions,
from liquid color to solid
product forms
ANTIMICROBIALS
Efficacy performance and
regulatory requirements are
met in a wide range of resins
compatible with Withstand™
antimicrobial technology
SURFACE ENERGY
MODIFICATION
Additive technologies such as
low retention, hydrophobic,
lubricious, light diffusion, or
anti-stat provide desired surface
manipulation
Materials used for today’s medical devices, parts and pharmaceutical packaging contribute significantly to
performance and, in turn, to a patient’s health and well-being.