High-Performance MS Polymer Caulk from Canada
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 — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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