Bitumen-Free Roofing Mastic from Mexico
Synthetic rubber mastic for roof flashing seals, waterproof. Explicitly HTS 3214.10.00.20 other mastics, non-bituminous. Surfacing for ceilings/roofs.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Confirm non-bituminous via assay to uphold chapter note
• Fire rating docs for roof applications
• Tube vs pail affects retail classification