Door and window seals are classified based on the constituent material of the product.
Those made of plastic material are classified under HS Code 3916 (i.e. those of monofilament of which any cross-sectional dimension exceeds 1 mm ), 3919 (i.e. those made of self-adhesive flat shapes of plastics) or 3926 (other plastic materials)
Those made of vulcanized rubber are classified under HS Code 4008 or 4016. Rubber door and window seals with bevelled or moulded edges, or with rounded corners, openwork borders or otherwise worked, or cut into shapes other than rectangular (including square) fall into the scope of HS Code 4016. If rubber seal is a strip (having any cross-sectional dimension exceeding 5 mm) in the length, or merely cut to length or into rectangles (including squares), then such rubber seals are classified under HS Code 4008.
Those made of textile materials (i.e. man-made fibres such as polyester) are classified under HS Code 6304.93.