https://www.avient.com/knowledge-base/article/injection-molding-mold-design
An EDM finish is acceptable for most GLS TPE formulations.
1, 2 and 4
Valve gates do not require the material in the part to freeze before the valve is closed and hold pressure is released.
https://www.avient.com/sites/default/files/2024-03/Nymax _ Nymax REC Processing Guide.pdf
Each 90° bend in the system should step down in size.
4.
Increase the vent depth to 0.010" at 0.100" away from the cavity and
vent to atmosphere.
4.
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
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 pack pressure
• Increase pack time
Mold design • Non-uniform mold cooling
Part design • Non-uniform wall thickness
Thermolator incorrect
temperature
• Check settings
• Inspect thermocouple
Processing Guide 7
Sticking in Mold
Overfilled cavity
• Decrease injection rate and pressure
• Decrease pack and hold pressure
• Adjust transfer position
• Decrease cooling time
Mold design • Increase draft angle
• Polish cores in direction of ejection
Part is too hot
1.844.4AVIENT
www.avient.com
Copyright © 2024, Avient Corporation.
https://www.avient.com/sites/default/files/2025-01/Tossiat-IATF 16949-2016 POLYONE FRANCE SAS Certificate FR094003.pdf
Date Of Certification: 11 December 2024
Date Of Expiration: 10 December 2027
IATF Certificate N°: 0558656
Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1
For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France
(The official document is in English.
Any translations of this document shall be used for reference only.)
1/2
Certificate of Approval
AWARDED TO
PolyOne France Tossiat
Route de la vavrette, 01250, Tossiat - France
IATF USI: LWZS4P
Bureau Veritas Certification certify that the Quality Management System of the above
organisation has been audited and found to be in accordance with the requirements of
IATF 16949 - FIRST EDITION
and the applicable customer specific requirements
SCOPE
Design and manufacturing
PERMITTED EXCLUSION(S)
None
PRODUCT(S) DELIVERED
colour with additive concentrates for thermoplastic resins and speciality compounds
obtained by mixing and extrusion
https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX
Date Of Certification: 11 December 2024
Date Of Expiration: 10 December 2027
IATF Certificate N°: 0558656
Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1
For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France
(The official document is in English.
https://www.avient.com/knowledge-base/article/using-post-consumer-recycled-content-plastic-packaging-closures
Viscosity changes also influence other process parameters, such as hold time in the mold and temperature profiles, impacting the total cycle time of the process
4.
https://www.avient.com/knowledge-base/article/using-post-consumer-recycled-content-plastic-packaging-closures?rtype[]=1164
Viscosity changes also influence other process parameters, such as hold time in the mold and temperature profiles, impacting the total cycle time of the process
4.
https://www.avient.com/knowledge-base/article/using-post-consumer-recycled-content-plastic-packaging-closures?sust[]=1133
Viscosity changes also influence other process parameters, such as hold time in the mold and temperature profiles, impacting the total cycle time of the process
4.
https://www.avient.com/sites/default/files/2020-09/swiss-army-knife-case-study.pdf
Avient material scientists found the perfect combination
with a custom rigid nylon formulation for the handle
paired with a soft GLS™ thermoplastic elastomer (TPE)
in the grip areas.
https://www.avient.com/sites/default/files/2023-12/Polystrand Thermoplastic Composite Panel Application _ Install Guide.pdf
Example: Deflection for 24 inch panel = Chart value *[12 / 24]
Performance Comparison
Hammerhead Panels and Marine Plywood
INSTALLATION INSTRUCTIONS
∠Θ°
CUTTING & DRILLING
Recommended blade: Industrial fine cut-off saw blade, 10" x 80 teeth 38° ATB grind with 5/8" bore,
PTFE coating
Recommended router bits: 3/8" diameter, 4 flute TiAlN (titanium aluminum nitride) coated carbide bit
PANEL SHAPING
• Determine bend angle
• Cut relief
• Heat core to softening point
• Bend, hold, and cool
• Glue joint for added strength
FINISHING
Gel coat finish is possible with minimal surface preparation.
https://www.avient.com/products/polymer-colorants/fiber-colorants/magiq-liquid-fiber-additives-and-colorants
Take the next big step towards true sustainability in fashion textiles
https://www.avient.com/knowledge-base/article/injection-molding-troubleshooting
Reduce pack and hold pressure.
Check hold pressures.
Increase hold time.