https://www.avient.com/resource-center?document_subtype=127&document_type=59&form_build_id=form-Ojq3VtEkRrXIsgZSyKvAgO_Z3JHuKtjJLR7xfOXoAI8&form_id=resource_filter_form&industry=0&op=FILTER RESULTS&product_family=81&product_name=0&product_subfamily=0&page=0
Versaflex™ TPE Formulation provided chemical resistance and bonding for EV charging gun grip
https://www.avient.com/news/polyone-launches-new-technologies-highlights-design-services-and-3d-printing-npe-2015
Versaflex™ VDT Vibration Damping TPE for Overmolding enables manufacturers of consumer electronics, power tools, sporting goods and appliances to add comfort and resilience to their products, providing a better end-user experience.
https://www.avient.com/news/unlocking-sustainability-avient-showcase-solutions-circular-economy-chinaplas-2021
Versaflex™ CE Non-Blooming TPEs overmold onto PC and PC/ABS with a smooth surface, and overcome the challenge of surface blooms for consumer electronics while decreasing cycle times.
https://www.avient.com/resource-center/services/avient-design/industrial-design
Avient Design services and a custom Versaflex™ wet grip TPE combine to deliver an optimized and aesthetically differentiated fishing tool for outdoor gear OEM
https://www.avient.com/sites/default/files/2023-03/Avient Annual Report 2022.pdf
Thermoplastics offer versatility and a wide range of applications.
Garratt
worked for DuPont Dow Elastomers, a joint venture of Dupont and Dow (global manufacturers of engineered
13 AVIENT CORPORATION
thermoset rubber and thermoplastic elastomer materials) in market development and product management
positions, culminating in a regional commercial leadership role for Europe, the Middle East and Africa.
Our product portfolio, which we believe to be one of the most diverse in our industry,
includes specialty formulated high-performance polymer materials that are manufactured using thermoplastic resins
and elastomers, which are then combined with advanced polymer additives, reinforcement, filler, colorant and/or
biomaterial technologies.
https://www.avient.com/sites/default/files/2020-10/2020-gravi-tech-design-guide-.pdf
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Four Main Areas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Obtain Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Strategy Theory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Defects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Angel Hair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Burns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Delamination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Dimension – Small . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Dimension – Large . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Distortion / Deformation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Flash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Jetting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Plate-Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Short Shot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Splay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Surface Finish. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Gate Vestige. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Voids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Warpage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Weld Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
The Injection Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Non-Return Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Nozzle Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Important Advice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
The Clamping Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Mold Design Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Determining Cooling Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Cooling Line Spacing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Bibliography. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Design Guide 5
CHAPTER 1 | PRODUCT SUMMARY
GRAVI-TECH™ DENSITY MODIFIED FORMULATIONS
High-Performance Alternative to Lead and Other Traditional Metals
PRODUCT DESCRIPTION
Gravi-Tech™ polymer-metal composites offer
a high-performance thermoplastic-based
alternative to lead and other traditional dense
metals.
KEY CHARACTERISTICS
The primary features and benefits
of Gravi-Tech formulations are:
• Customized density, offering a wide range of
specific gravities from 1.5 to 11 gm/cm3
• Broad modulus range, from very flexible to
very rigid grades
• Corrosion resistance, withstanding oxidation
for long-term use and benefit
• Chemical resistance, withstanding fuels, oils
and other harsh chemicals
Additional features include:
• Design flexibility and processing ease
• Good impact strength
• Elevated heat deflection temperature
6 Gravi-Tech Design Guide 7
CHAPTER 2 | PROCESS SETTINGS
Density Modified Formulations
Gravi-Tech™ polymer-metal composites are high-density materials developed as thermoplastic-based
alternatives to lead and other traditional metals.
These materials have been formulated using select metallic
fillers and engineered thermoplastic resins to have densities similar to actual metals, while also providing the
design flexibility and processing ease of conventional thermoplastics.
https://www.avient.com/sites/default/files/2022-03/Avient 2021 Annual Report.pdf
Thermoplastics offer versatility and a wide range of applications.
Garratt worked for DuPont
Dow Elastomers, a joint venture of Dupont and Dow (global manufacturers of engineered thermoset rubber and
thermoplastic elastomer materials) in market development and product management positions, culminating in a
regional commercial leadership role for EMEA.
Our product portfolio, which we believe to be one of the most diverse in our industry,
includes specialty formulated high-performance polymer materials that are manufactured using thermoplastic resins
and elastomers, which are then combined with advanced polymer additives, reinforcement, filler, colorant and/or
biomaterial technologies.
https://www.avient.com/sites/default/files/2021-06/colormatrix-select-brochure.pdf
Since
pioneering the development of liquid color
dispersions in the 1970s, ColorMatrix is now a
leading innovation brand in advanced liquid
colorants for thermoplastic applications.
https://www.avient.com/sites/default/files/2020-10/neu-quality-commitment.pdf
In the event of a conflict between this Quality
Commitment and any mutually agreed specifications or quality agreement that is executed by NEU,
the mutually agreed specifications or signed quality document shall control.
1.0 PRODUCT DESCRIPTION
Thermoplastic material in pellet form.
2.0 TEST METHODS
NEU test methods are modeled after ASTM testing standards, where applicable.
3.0 OPERATIONAL DEFINTIONS
3.1 Lot (Batch): Material manufactured at one time.
3.2 Blend: No more than three lots of a specific raw material, combined together to form a
homogeneous mixture.
3.2.1 Full lot tractability of non-proprietary formulations will be reflected on the COC
3.3 Certification: “Certificate of Conformance” or “Certificate of Analysis” based material
requirements
3.4 Certificate of Analysis: Document containing information that the product conforms to
the established Product Specifications.
3.5 Certificate of Conformance: Document containing confirmation that the product
conforms to the defined formulation.
3.6 Finished Product Form: Finished product shape (Cylindrical, Spherical)
3.7 Product Specification: the product specifications that are contained in a written
document signed by NEU, or if such document does not exist, the Certificate of Analysis
or Certificate of Conformance issued by NEU.
4.0 PACKAGING
4.1 Standard product packaging options include:
4.1.1 Drum
4.1.2 Gaylord
4.1.3 Pail
4.1.4 Individual bag in box
Approved
Plant/Local : Reference Document
Document #: DOC-10815 Revision: 3
Document
Owners:
Dean Clark Effective Date: Oct 29, 2020
Title: NEU Quality Commitment
Page 2 of 4
Only the electronic version of this document in ETQ is the controlled version of the document.
https://www.avient.com/sites/default/files/2023-07/Avient_CodeConduct_2023_France.pdf
FAQ
Q : L’un de nos clients nous est resté fidèle
alors que nous travaillions à la résolution
d’une série de problèmes.