Acoustic Wall Mastic Sealant from Canada
Sound-dampening mastic for sealing drywall joints, non-hardening. HTS 3214.10.00.20 as wall surfacing mastic. Reduces noise transmission.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• ASTM E90 sound tests for claims
• Non-toxic certs for interior use
• Avoid 'foam' terms to stay mastic