Industrial Coating Flame Retardant Concentrate from Canada
High-concentration phosphonate mixture for intumescent coatings on steel structures and wood panels, matching 3824.91.00.00 substance requirements. Forms protective char layer during fire exposure. Classified as chemical preparation due to predominant specified phosphonate content.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include fire test data (ASTM E84, etc.) supporting industrial coating application
• Segregate from pesticide mixtures to avoid 3808 scrutiny