Vinyl Ester Pre-Polymer Resin from China
Methacrylate-capped unsaturated polyester pre-polymer known as vinyl ester for chemical tanks and pipes. Technically an unsaturated polyester derivative in primary form, HTS 3907.91.5000 'other' as it doesn't meet specific copolymer exclusions. Superior hydrolysis resistance.
Duty Rate — China → United States
44%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Differentiate from true epoxies via FTIR if challenged; declare bisphenol-A content; pressure test containers pre-shipment