https://www.avient.com/news/avient-launches-automotive-specific-grades-within-its-resound-rec-recycled-content-tpes-portfolio
They are colored black to provide consistent and comparable aesthetics to prime grades for OEM-specific blacks.
https://www.avient.com/resource-center?document_type=0&form_build_id=form-fNS88LG3BRw1MCsEhxqrGzoCcCISeOxlsDfIOUV4Mx0&form_id=resource_filter_form&industry=0&op=FILTER RESULTS&product_family=84&product_name=0&product_subfamily=0&page=4
OnColor™ RC Environmental Black Color Concentrate
Product description, value solution, key characteristics, markets and applications of OnColor™ RC Environmental Black Color Concentrate
https://www.avient.com/knowledge-base/article/injection-molding-mold-processing?rtype[]=1164
The use of a polyethylene (PE) carrier may adversely effect adhesion to the substrate for some overmolding applications.
High levels of regrind are better tolerated in black materials.
https://www.avient.com/resources/safety-data-sheets?page=4331
X ET #SR-13515 Bronzed Black
X ET #SR-13515 Golder Black
X ET #SR-13515 Black Metallic Sparkle
https://www.avient.com/resources/safety-data-sheets?page=4795
HIGH STR BLACK
STD STR BLACK
BLACK FRPET 255287
https://www.avient.com/resources/safety-data-sheets?page=5656
Geon(TM) MB3093D BLACK 20 NO SCENT
Geon(TM) V1840B BLACK FLUID BED PVC
STAN-TONE MB- BLACK
https://www.avient.com/resources/safety-data-sheets?page=5655
Geon(TM) MB3047 BLACK REWORK
Geon(TM) V1841 BLACK FLUID BED
Geon(TM) MB3136 BLACK FILTER END CAP
https://www.avient.com/content/resource-center/substance-safety-summaries
Carbon Black
https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/colormatrix-lactra-four-one-zero
OnColor™ IR Sortable Black Colorants Video
New Black Colorants from Avient turn former waste into recyclable packaging
https://www.avient.com/idea/tier-1-auto-supplier-saves-supply-chain-expansion
And while underhood elements aren’t classified as appearance parts, the OEM wanted to achieve visual harmony when the hood was opened, so the material also had to match the black of other components in the engine compartment.
This meant that when a prospective customer opened the hood of a vehicle, they would see a single shade of black.
