Ethylene Glycol Dimethacrylate (EGDMA) from Japan
Ethylene glycol dimethacrylate (EGDMA) is a difunctional crosslinking monomer for improved mechanical properties in resins. Though di-functional, it classifies as 'other' methacrylic ester under HTS 2916.14.20 since Chapter 29 prioritizes monocarboxylic acid ester heading. Used in dental composites and 3D printing resins.
Duty Rate — Japan → United States
13.7%
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
Import Tips
• Functionality testing (double bond equivalence) confirms difunctional nature
• Refractive index (1.45-1.46) purity check
• Avoid copper/iron contamination; accelerates polymerization