Aluminum extrusions -- as well as polyurethane and polyamide thermal barrier materials -- are not considered toxic and do not appear on the Red List. Review the AEC white paper, "Aluminum Extrusions: Building Occupant Health and Safety" for more information.
Aluminum extrusions used in building materials are furnished in mill, anodized, or painted (liquid or powder) finishes. Extrusions are naturally free of Volatile Organic Compounds (VOCs), whether in mill finish, anodized, or painted. Low-VOC liquid paints are managed during application in the manufacturing facility and are not associated with off-gassing from cured, final product.