Hypalon Rubber Roof Coating Mastic from Canada
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 — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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