Hypalon Rubber Roof Coating Mastic from Mexico
Chlorosulfonated polyethylene (Hypalon) rubber mastic for coating flat roofs and seams. Under HTS 3214.90.10.00 as nonrefractory surfacing preparation based on rubber for ceilings/roofs. Provides waterproof membrane protection.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Differentiate from roof paints (3208-3210) by emphasizing mastic thickness/application
• Fire rating documentation aids classification for roof use
• Pesticide registration if marketed as anti-mold coating