Polyurethane Construction Caulk from Canada
Polyurethane construction caulk is a high-performance mastic for exterior building joints. It remains elastic under movement, classified under HTS 3214.10.00 as caulking compound.
Duty Rate — Canada → 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
• Submit isocyanate content declaration for OSHA and EPA compliance
• Include joint movement capability ratings in technical specs
• Certify for ASTM C920 standards if claiming construction grade