Unvulcanized Silicone Rubber Sheets from China

High-temperature resistant unvulcanized silicone rubber sheets for molding into seals and gaskets. This compounded product is classified in HTS 4005.91.00.00 as unvulcanized rubber in sheet form, prior to vulcanization.

Duty Rate — China → United States

35%

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

Test for vulcanization status; provide lab reports if challenged by CBP

Avoid antioxidants or stabilizers in excess to retain raw material character

Declare exact thickness to confirm 'sheet' vs 'plate' but both covered here

Unvulcanized Silicone Rubber Sheets from China — Import Duty Rate | HTS 4005.91.00.00