Vinyltriethoxysilane from Canada
Although silicones often classified elsewhere, vinyltriethoxysilane with Si-C vinyl bond qualifies as organo-inorganic under 2931.90.90 when imported as pure compound. Silane coupling agent for composites; chapter notes distinguish from polymers.
Duty Rate — Canada → United States
3.7%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Flammable liquid UN1993; distillation residue documentation often required
• Common misclassification to 3910 silicone oils—prove monomer status with GC analysis
• REACH Annex XVII restrictions apply to certain silanes