Aerospace-Grade Elastomeric Polysulfide Sealant Resin from Mexico
Aerospace-Grade Elastomeric Polysulfide Sealant Resin is a primary form polymer for fuel tank coatings. HTS 3911.90.10.00 covers its elastomeric nature under polysulfides, compliant with 95% monomer rule. High chemical resistance suits aviation demands.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Comply with REACH/ TSCA for aerospace chemicals; provide safety data sheets
• Confirm dimensions don't trigger 3921 Free (B) note if in sheet form