https://www.avient.com/resource-center?document_type=59&document_subtype=0&industry=0&product_family=0&product_name=0&op=FILTER RESULTS&form_id=resource_filter_form&page=30
Gravi-Tech Density Modified Formulations - Design Guide for Luxury Closures
https://www.avient.com/resource-center?document_type=59&document_subtype=0&industry=0&product_family=0&product_name=0&op=FILTER RESULTS&form_id=resource_filter_form&page=21
Impact modified polyketone (PK) formulations provide excellent chemical resistance, low moisture uptake, and outstanding high impact performance and abrasion resistance
https://www.avient.com/sites/default/files/2020-10/2020-gravi-tech-processing-guide.pdf
Gravi-Tech™
Density Modified
Formulations
PROCESSING GUIDE
2 Gravi-Tech
GRAVI-TECH™
Density Modified Formulations
Gravi-Tech™ polymer-metal composites are high-density materials developed as thermoplastic-based
alternatives to lead and other traditional metals.
Full-round runners or a modified trapezoid runner are the
best designs.
https://www.avient.com/sites/default/files/2024-03/Luxury Closures Application Bulletin_Online.pdf
SPECIALTY PACKAGING SOLUTIONS
ADD WEIGHT AND AESTHETICS
TO YOUR LUXURY PACKAGING
CLOSURE DESIGNS WITH DENSITY
MODIFIED FORMULATIONS
Consumers of luxury cosmetics and spirits tend to perceive added value from packaging that incorporates
weight, aesthetics, and visual surface effects into the design.
Injection-moldable
Gravi-Tech™ density modified formulations can help you achieve the evenly distributed weight, complex
designs, and visual surface effects of metal without the extra costs and steps associated with die cast mold
tooling or secondary assembly operations.
https://www.avient.com/sites/default/files/2023-04/Advanced simulation captures part performance for fibre reinforced thermoplastics_Case_Study.pdf
If the simulation
fails, parameters can be modified – enter a new material,
modify the design, augment manufacturing, etc. – to yield
the desired results.
https://www.avient.com/sites/default/files/2023-03/Artisan Pre-colored Thermoplastics Technical Bulletin.pdf
Available in a wide range of customizable colors,
these impact-modified nylon formulations
eliminate secondary painting processes—unlike
traditional materials such as painted plastics or
metals—providing the added manufacturing and
sustainability benefits of reducing energy use and
removing VOC emissions.
TECHNICAL BULLETIN
Characteristics
Artisan™
Nylon
Solution
Painted
Metal
Painted
Plastic
Traditional
Molded-in
Color
Impact
Modified
Nylon
PA
Ionomer
Alloy
Aesthetic Very Good Excellent Excellent Good Very Good Very Good
Scratch Appearance Excellent Poor Poor Good Excellent Excellent
Scratch & Mar
Resistance Very Good Excellent Excellent Poor Very Good Excellent
Color Customization Good Excellent Excellent Very Good Good Good
Stress Whitening Excellent Fair Fair Poor Excellent Excellent
Weatherability Good Excellent Excellent Very Good Good Very Good
Temperature
Performance Good Excellent Fair Fair Fair Good
Corrosion Resistance Excellent Fair Excellent Excellent Excellent Excellent
Processability One Step Multi Step Multi Step One Step One Step Complex
One Step
Total Production Cost $$$ $$$$$ $$$$ $$ $$$ $$$$
Order Quantity
Restrictions Some Some Some None More More
COMPARISON OF NYLON, METAL, AND PLASTIC
Properties Test Method Artisan™ AR6000-0007 HI UV*
Gloss Level** Gloss reading at 60 degrees 80-93
Molding Shrinkage – Across Flow ASTM D955 0.009 to 0.013 in/in
Tensile Strength (Yield) ASTM D638 7300 psi
Tensile Strength (Break) ASTM D638 5300 psi
Tensile Elongation (Yield) ASTM D638 6.0%
Flexural Modulus ASTM D790 270500 psi
Flexural Strength (Yield) ASTM D790 9950 psi
Notched Izod Impact ASTM D256 -4°F (-20°C) 5 ft-lb/in
73°F (23°C) 11 ft-lb/in
Unnotched Izod Impact ASTM D256 -4°F (-20°C) 29 ft-lb/in
73°F (23°C) 30 ft-lb/in
Color & Aesthetics*** Green, medium blue, dark blue, red, orange, white, gray, black
Color customization available based on specific needs
KEY PROPERTIES
Features: high-gloss finish, UV stability, scratch resistance, chemical/corrosion resistance,
cold temperature impact resistance, heat resistance
* Reflects average of several colors, properties shift slightly depending on color
** Gloss level varies based on tooling temperature
*** UV data available upon request
Copyright © 2023, Avient Corporation.
https://www.avient.com/sites/default/files/2023-02/Gravi-Tech REC - Luxury Bottle Top - Applications Snapshot.pdf
CAP PRODUCER
L U X U R Y B O T T L E C A P
• A density modified solution - ABS filled 2.2g/cm3
• Incorporates post-consumer recycled ABS content
• Ability to be metallized comparable to prime materials
• Continuity of supply
• Formulated a custom material with post-
consumer recycled ABS content
• Provided a more sustainable solution while
keeping comparable performance characteristics
to the prime grade previously used
• Enabled customer to produce bottle top with
weight, look and touch of metal, denoting luxury
Gravi-Tech™ REC Recycled Formulation
KEY REQUIREMENTS
WHY AVIENT?
https://www.avient.com/sites/default/files/2023-02/Gravi-Tech REC - Perfume Cap - Application Snapshot.pdf
PACKAGING
COMPONENT
MANUFACTURER
P E R F U M E C A P
• A density modified formulation - PP filled, 1,2g/cm3
• Needs to contain recycled PP PIR content
• Electroplatable - comparable to prime materials
• Provide continuity of supply
• Utilized formulation expertise to develop a custom
material with post-industrial recycled PP content
• Provided a more sustainable solution with 60%
recycled content while maintaining the
performance characteristics of prime PP
• Expedited speed to market, delivering material in
three weeks
Gravi-Tech™ REC Recycled Formulation
KEY REQUIREMENTS WHY AVIENT?
https://www.avient.com/sites/default/files/2025-03/Latam Cesa Slip AntiBlock Case Study.pdf
https://www.avient.com/products/polymer-additives/surface-modifier-additives/cesa-anti-block-additives
Slide 1: Flexible packaging manufacturer
https://www.avient.com/resource-center/services/avient-design/engineering
Density Modified Formulations: Gravi-Tech™