Outdoor Butyl Tape Caulking Compound from Canada
Roll-form butyl rubber caulking mastic applied via tape for RV, gutter, and flashing seals. HTS 3214.10.00.10 includes this as caulking compound despite tape format due to mastic composition. Self-adhering for weatherproofing.
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
• Distinguish from adhesive tapes (Chapter 39/59) by emphasizing mastic layer
• Weight solvent content to comply with Chapter 32 note on organic solvents