https://www.avient.com/sites/default/files/2020-12/excelite-one-pager-pallet-manufacturer.pdf
A M E R I C A & A S I A
• Eliminate voids in plastic that create quality issues
• Reduce high scrap rates due to sink marks
• Improve low strength-to-weight ratio due to voids
• Reduce long cycle times
• Run more fractional melt / low melt flow resins
• Improved cell structure and physical properties
• Removed sink marks to reduce scrap rates
• Improved gas retention when used with N2
physical foam
• Reduced short shots for lower scrap rates
• Improved melt flow and created a more
controllable foaming process
• Provided greater ability to process low melt flow
resins
Excelite™ IM Chemical Foaming Additives
KEY REQUIREMENTS*
WHY AVIENT?
https://www.avient.com/sites/default/files/2025-02/PET Recycling Eco-System Infographic.pdf
© 2024 Avient, All Rights Reserved
RESIN (RPET/PET) PRODUCTION
Create Value
• Increase yield
• Expand applications
• Improve aesthetics
• Reduce energy
• rePrize™ IV Builder
• Ionix™ Flake Treatment
• Optica™ Toners & Colors for
Enhanced Recyclability
• Joule™ Reheat Additive
DISTRIBUTION, RETAIL SALES,
CONSUMPTION
Enhance Consumer Experience
• Improve aesthetics and visual
appeal
• Extend shelf life
• Bolster consumer safety
• Improve organoleptics
• Ultimate™ UV390 Light Barrier
• Lactra™ Light Blocking Additive
• Triple A™ Acetaldehyde
Scavenger
• Amosorb™ Oxygen Scavenger
• Optica™ Toners
COLLECTION, SORTING,
Supply Quality Feedstock with
APR* Recognized Solutions
• Expand end-use applications
• Reduce downcycling
• Improve color stability
• Ultimate™ UV390 Light Barrier
• Capture™ Oxygen Scavenger
PREFORM MOLDING &
BOTTLE BLOWING
Promote Process Optimization
• Reduce energy
• Reduce bottle blow-outs
• Mitigate stress cracking
• Improve mechanical and
dimensional stability
• Increase throughput
• Eze™ Slip AgentPET
RECYCLING
ECO-SYSTEM
PREFORM
MOLDING
& BOTTLE
BLOWING
COLLECTION,
SORTING,
DISTRIBUTION,
RETAIL SALES,
CONSUMPTION
RESIN
(RPET/PET)
PRODUCTION
* APR - Association of Plastics Recyclers
https://www.avient.com/sites/default/files/2020-09/pei-masterbatch-product-bulletin.pdf
Colorant Chromatics™ PEI Masterbatch
Colors for High-Temperature Injection Molding Applications
Colorant Chromatics™ PEI colorants are specifically
designed to color polyetherimide (PEI) resin used in
high-temperature injection molding applications.
Since PEI resin offers excellent resistance to
heat and fire, and has very good dimensional
stability, it is ideal for a variety of applications
in industries such as aerospace, automotive,
telecommunications and healthcare.
Colorant
Chromatics PEI colorants are designed specifically
for use in these resins to help boost color
consistency and streamline product development
for increased speed to market.
https://www.avient.com/sites/default/files/2024-09/Colorant Chromatics Brochure_2024.pdf
Colorant Chromatics color concentrates and pre-colored
solutions are based on resins from the world’s leading suppliers.
Because of the thermal
similarities of the resins they can also be used on
PFA substrates.
They feature a synthetic resin binder to
hold the pigment in place after sintering.
https://www.avient.com/products/advanced-composites/continuous-fiber-composite-panels/hammerhead-marine-composite-panels
Avient’s reinforced composite technologies use carbon, glass and aramid fibers with custom formulated thermoset or thermoplastic resins in continuous forming processes
Thermoset composite sandwich panels manufactured via continuous resin transfer molding for custom engineered performance.
https://www.avient.com/products/advanced-composites/continuous-fiber-composite-panels/polystrand-thermoplastic-composite-panels
Unidirectional fibers and engineered thermoplastic resins combine to create CFRTP tapes & laminates
Avient’s reinforced composite technologies use carbon, glass and aramid fibers with custom formulated thermoset or thermoplastic resins in continuous forming processes
https://www.avient.com/products/polymer-colorants
Colorant Chromatics™ PEEK and PEI-Siloxane (SILTEM™ resin) Colorants & Pre-colored Solutions
Colorant Chromatics™ PEEK and PEI-Siloxane (SILTEM™ resin) Colorants & Pre-colored Solutions
https://www.avient.com/news/where-sustainability-matters-avient-highlight-its-latest-solutions-support-circular-economy-chinaplas-2023
ColorMatrix™ Optica™ PET Blue Toners & Colors: developed for polyethylene terephthalate (PET) resins and preforms, designed to enhance recyclability and reduce yellowing that occurs during the recycling process.
Colorant Chromatics™ UV Laser Marking Technology for Fluorinated Ethylene Propylene resins (FEP): can outperform traditional and infra-red marking, enabling a permanent, gentle, cost-effective ultraviolet (UV) marking with 60%- 80% percent contrast, such as required for cables in aerospace.
https://www.avient.com/sites/default/files/2022-01/Carbon Fiber Composites Infographic.pdf
Carbon fibers combined with vinyl ester or epoxy resin
create a composite material that, like all composites,
has higher performance properties than the individual
materials alone.
FIBER + RESIN = COMPOSITE
Carbon fiber
is formed by
bonding carbon
atoms together
to form a long
chain.
Filaments
can be woven into
a fabric, or used
in continuous
unidirectional form
and combined with
resin to create a
composite.
https://www.avient.com/sites/default/files/2023-11/Cesa Clean Processing Usage Guide.pdf
• Cesa Clean is 100% recyclable with polyolefin resins and compounds.
GUIDELINES FOR USING CESA CLEAN ADDITIVES
• Cesa Clean works best when molded maintaining normal (injection)
pressure/shear
• For best results, Avient recommends a “Running Color Change”
which eliminates breaks in the molding cycle
• Since the Cesa Clean concentrate will expand, it is recommended
to reduce the shot size by 20%
• It is designed for use at a let-down ratio (LDR) of 3.0% or (33:1); however,
use rate can vary depending on the severity of the contamination but
typically is 2.0–4.0% (a use rate higher than 6.0% may not have any
positive affect on the cleaning performance)
• Using Cesa Clean as a routine part of your color change rotation will
allow faster changes and consume a minimal amount of raw material
- Note: If the manifold is not cleaned routinely, this process may be
more time consuming and additional material will be required
• It is best to process at your normal polymer processing temperatures
- For best performance, stock temperature should be at least 400°F
- If 400°F is achieved during the purging process, no additional
activation will occur during the reprocessing of regrind
- All parts produced during the “Running Purge Cycle” should be
captured as regrind, resulting in a scrap-free color change
- If using sequential gates, open and close all gates at the same time
while purging the tool
- If contamination appears to be coming from one gate, open and
close first, and for an extended period of time, to force more material
through this location
- When cleaning in this manner, pay close attention to shot size
- Parts containing the previous or new color plus any Cesa Clean
can be used as regrind
INTRODUCING CESA CLEAN TO YOUR PROCESS
Hand Blend
• Hand weigh enough of the Cesa Clean and
natural resin mix to equate to 3–5 times the
barrel capacity
• Use rate should be 3.0% or 33:1 for routine
cleaning
• For difficult-to-clean tooling, or tooling which
is not routinely cleaned, start at 4.0% or 25:1
• Note: Do not attempt to vacuum load more than
15 feet from source as stratification/separation
may occur
Volumetric Feeder
• Calibrate feeder to dispense 3.0% or 33:1 for
routine cleaning
• For difficult-to-clean tooling, or tooling which
is not routinely cleaned, start at 4.0% or 25:1
• This style of feeder is highly recommended for
at-the-throat metering of Cesa Clean
Blending Units
Most blenders have an extra bin for an additive
• Fill the additive bin with Cesa Clean
• Set blender to introduce the Cesa Clean at
2.0 to 4.0%
• Note: Do not air convey any further than 15 feet
as Cesa Clean has a high density and may separate
from the mix.
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.