Silicone Sponge Rubber Strip from China

Cellular silicone rubber strips in rectangular cross-section for thermal insulation and gasketing in HVAC systems. HTS 4008.19.80.00 covers such vulcanized cellular rubber strips simply cut to length. Excludes textile-covered belting per chapter note.

Duty Rate — China → United States

38.3%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

Import Tips

Certify silicone as synthetic rubber per chapter note 2 definition (vulcanizable, elongation/recovery test compliant)

Ensure strip width/thickness qualifies as 'strip' per chapter note 8 (regular geometric shape, simply cut)

Avoid packaging as sets with metal/hardware, which could trigger 4008.90 or Section XVI classification