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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

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

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