Diphenylguanidine (DPG) Rubber Accelerator DPG from China
Commercial-grade N,N'-Diphenylguanidine (DPG) specifically packaged for rubber industry use falls under HTS 2925.29.18.00 as the enumerated compound. Purity typically 95-99% with stabilizers permitted by chapter notes. Essential delayed-action accelerator for NR and SR 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
• Include vulcanization accelerator specification sheets showing DPG content >90%
• Provide stabilizer analysis confirming chapter note (f) compliance (preservation/transport only)
• Declare commercial grade vs. technical grade to avoid reclassification as mixtures