https://www.avient.com/sites/default/files/2023-11/Cesa Clean Processing Usage Guide.pdf
VALVE-GATED TOOLS IN
INJECTION MOLDING GUIDELINES
CESA
CLEAN ADDITIVES
™
KEY FEATURES
Cesa™ Clean Additives
• Cesa Clean is a concentrated purge product, not a purge compound.
• It can be processed through manifolds, valve-gated tools and small sub gates.
• Cesa Clean is 100% recyclable with polyolefin resins and compounds.
The preferred approach is with the
blender mounted above the feedthroat of the
molding machine.
GETTING STARTED
TIMING IS THE KEY TO A RUNNING
COLOR CHANGE
Hand Blend
• Have the purge blend ready to load
• If hopper contains a mixture of resin, color and/
or regrind, it should be run dry or drained before
beginning the color change, keeping the screw
full so press cycle continues
• Run the main resin hopper dry or shut off hopper
to hand feed at the throat
• Once press is clean, slide hopper in place
and proceed with next color-resin blend
• The next color can be added while Cesa Clean is
still in the barrel
• When splay is no longer visible in parts, reset shot
size, parts should be ready to pack
(Single) Volumetric/Gravimetric Metering Unit
at the Throat
• Empty and clean feeder while press continues
to run
• Add Cesa Clean to the feeder color hopper and
calibrate to a 3.0% use rate
• When press is clean, start next color
• When splay is no longer visible in parts, reset shot
• Note: If an open/unused secondary feeder is
installed, use it for the Cesa Clean concentrate
Central Blending Unit
• Thoroughly clean unit while continuing to mold
parts, keeping a resin feed to the press
• Using a clean open hopper or regrind hopper, add
the Cesa Clean concentrate
• Set blender for additive/color to 3.0%
• Once press is clean, drain hopper and/or central
blending unit while continuing to mold parts
• Begin new color and continue to mold parts
• When splay is no longer visible in parts, reset shot
Process Adjustments That Can Help
• Increase back pressure
• Increase screw speed
• Increase injection speed (in some tools maximum
injection speed can facilitate cleaning)
• Reduce mold close time (faster cycle)
• Always remember a stock temperature of 400°F
is essential
When press and tool are clean, return all settings to
standard production process profile.
https://www.avient.com/sites/default/files/2024-09/Complet OnForce LFT Overview _ Brand Brochure.pdf
Long fiber reinforced thermoplastics provide
structural performance that can go head-to-
head with metals at a fraction of their weight
while retaining the processing ease
of injection molding.
Pyrolysis removes the matrix polymer of injection-molded specimens
to reveal the different internal fiber structure of long glass fiber and
short glass fiber parts.
Entanglement of longer fiber filaments allows the long fiber part to
retain its molded form, which provides more structural integrity and
increased toughness.
https://www.avient.com/sites/default/files/resources/TRA%2520-%25202016%2520Annual%2520Report%2520for%252015%2520Tideman.pdf
Progress on TRA Plan Amendments
Were any amendments made to
the toxic substance reduction
plan during the reporting period
Description any amendments that
were made to the toxic substance
reduction plan during the reporting
Provide a public summary of the description of any
amendments that were made to the toxic
substance reduction plan during the reporting
Report Submission and Electronic Certification
NPRI Electronic Statement of Certification
Specify the language of correspondence
English
Comments (optional)
I hereby certify that I have exercised due diligence to ensure that the submitted information is true and complete.
ON MOE TRA Electronic Certification Statement
Annual Report Certification Statement
As of 30/04/2018, I, Robert Greenop, certify that I have read the reports on the toxic substance reduction plans for the toxic substances referred
to below and am familiar with their contents, and to my knowledge the information contained in the reports is factually accurate and the reports
comply with the Toxics Reduction Act, 2009 and Ontario Regulation 455/09 (General) made under that Act.
Highest Ranking Employee
Robert Greenop
Report Submitted by
Najat Kamal
Website address
I, the highest ranking employee, agree with the certification statement(s) above and acknowledge that by checking the box I am electronically
signing the statement(s).
https://www.avient.com/sites/default/files/2022-10/Cesa WIthStand Antimicrobial Additives Product Bulletin.pdf
Formulated with organic and
inorganic antimicrobial additives, Cesa WithStand
technologies are tested to specific log reduction
requirements to eliminate or inhibit microbe
growth, and protect against microbial degradation,
mold and mildew.
PRODUCT BULLETIN
KEY CHARACTERISTICS
• Additives to retard microbe growth
in finished plastic parts, enhancing
product performance
• Reduces bacterial, mold and fungal
growth on the surface as well as through the
thickness of the plastic part
• Helps reduce odor, staining, discoloration
and loss of mechanical properties
• Available for a variety of processes including
extrusion, injection molding, blow molding,
rotational molding and thermoforming
MARKETS AND APPLICATIONS
Suitable for a wide variety of applications,
Cesa WithStand Antimicrobial Additives add
value across these key markets:
• Packaging*
• Cosmetics
• Wellness
• Appliances
• Electronics
• Building & construction
• Transportation
• Wire & cable
* Contact an Avient representative to check
food contact compliance
1.844.4AVIENT
www.avient.com
Copyright © 2022, Avient Corporation.
https://www.avient.com/knowledge-base/article/continuous-fiber-reinforced-thermoplastic-composites?rtype[]=1164
It is possible to create injection or compression molded plastic parts that would be difficult or impossible to machine using traditional materials such as steel or aluminum.
These parts can be molded with assembly features in place to reduce product fabrication and secondary operations.
These materials can be formed into multi-ply laminates to offer off-axis performance, post-molded into complex shapes, and overmolded with traditional thermoplastics to provide localized reinforcement in specific part locations.
https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/gravi-tech-density-modified-formulations
Formulated using select metallic fillers and engineered thermoplastic resins, these solutions offer densities similar to traditional metals while also providing design and processing flexibility because it can be extruded, molded, calendered or thermoformed into the final desired shape.
Injection molding parameters and troubleshooting recommendations for Gravi-Tech™
Injection molding parameters and troubleshooting recommendations for Gravi-Tech™ (Chinese language version)
https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/onforce-long-glass-fiber-reinforced-polypropylene-composites
Using long glass fiber reinforcement in these formulations is an economical way to achieve a very strong thermoplastic solution that can be used for a variety of applications via injection molding.
Can be processed on standard injection molding machines
Guidance on key elements of preparation and molding process for Complet & OnForce LFT
https://www.avient.com/news/avient-showcase-newest-additions-its-healthcare-portfolio-mdm-west-2025
These additive concentrates and pre-compounds enhance hydrophobicity in injection-molded polypropylene components, delivering high-performance water, solvent, and lab solution repellency.
3D Molding and Design Services from Avient Design: These services accelerate product development with advanced design simulation and 3D printing technologies to provide accurate predictions of performance, as well as cost-effective and functional prototypes to help optimize part design.
Versaflex™ HC and Versaflex HC BIO Thermoplastic Elastomers (TPEs): These specialty TPE formulations offer versatile and customizable performance for medical and biopharmaceutical tubing, device overmolds, and injection molded applications.
https://www.avient.com/knowledge-base/article/continuous-fiber-reinforced-thermoplastic-composites
It is possible to create injection or compression molded plastic parts that would be difficult or impossible to machine using traditional materials such as steel or aluminum.
These parts can be molded with assembly features in place to reduce product fabrication and secondary operations.
These materials can be formed into multi-ply laminates to offer off-axis performance, post-molded into complex shapes, and overmolded with traditional thermoplastics to provide localized reinforcement in specific part locations.
https://www.avient.com/sites/default/files/2020-10/composites-innovation-cell-program-bulletin_0.pdf
Our
application development, engineering and
industrial design teams can help you to:
• Increase stiffness
• Improve impact resistance
• Reduce weight through thin-walling and
material reduction or replacement
• Add strength in high stress areas
Avient’s thermoplastic composite innovation
cell in Englewood, CO features injection and
compression molding equipment as well as design
and testing services, all under one roof.
CAPABILITIES
• Prototype part sampling
• Tooling validation
• Process optimization
• Material configuration
• Application development support
• Laminate analysis
• Mechanical system analysis
• Resin flow with laminate inserts
• Finite Element Analysis
EQUIPMENT SPECIFICATIONS
Injection Molding
• Milacron-Fanuc Roboshot α-S15OiA with
4-axis robot
• Maximum shot capability at 171 grams
with a clamping for 198 tons
• Trial molds include a 4"x6" flat plaque
and a 3"x10" hat stiffening member
Compression Molding
• 450 ton down acting press
• 39" x 39" platen size
• Features automatic shuttle table with
IR preheat oven
Material Testing
• Instron Model 5982 Universal Testing System
with 100 kN load capacity
• AVE2 non-contacting video extensometer with
digital image correlation capability
• Environmental chamber that enables testing
from -150° to 350° C
PRODUCT BULLETIN
PROCESSABILITY
MEETS PERFORMANCE
Polystrand™ advanced thermoplastic
composites combine high strength,
unidirectional, continuous fibers with
engineered thermoplastic resins to create
continuous fiber reinforced thermoplastic
(CFRTP) materials that feature exceptional
strength-to-weight ratio and high impact
resistance.
Through injection or compression
overmolding, composite tapes and multi-
ply laminates are integrated into traditional
thermoplastic molding processes to create
locally-reinforced, molded components.