Coated Paperboard Electrical Box Seals from Canada
Washers and seals cut from flame-retardant coated paperboard for electrical junction boxes. HTS 4823.90.60.00 classification for coated paperboard seals preventing dust/moisture ingress. Coating meets UL94 flammability standards.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include UL or equivalent certification for flame retardancy in import files
• Specify dielectric strength and IP rating in technical documentation