Housewrap Microporous Polypropylene Film from Japan
>- Microporous polypropylene breathable film used in construction housewrap for moisture vapor transmission. This is a cellular (microporous) sheet of polypropylene, which is not one of the named plastics in other subheadings of heading 39.21, so it falls under 3921.19.00 as "of other plastics."
Duty Rate — Japan → Canada
0%
Import Tips
• >- Provide the film's microporous structure and moisture vapor transmission rate (MVTR) data to support the cellular classification
• Ensure the product is declared as a sheet/film, not as a finished building product, to avoid classification under a different heading
• If the film is imported with adhesive strips or fasteners, verify whether it remains classifiable as a sheet