High-Performance MS Polymer Caulk from Mexico
Modified silane (MS) polymer hybrid caulking for demanding joints, combining silicone and polyurethane benefits. As a caulking mastic, it fits HTS 3214.10.00.10 for construction gap sealing. UV-stable and isocyanate-free.
Duty Rate — Mexico → United States
13.7%
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
• Provide polymer composition breakdown to confirm non-excluded Chapter 32 status
• Hazardous material shipping papers required for moisture-curing types
• Avoid classifying as glue if primary use is caulking per end-use