Setting-Type Joint Compound Base from Canada
Setting-type joint compound base is calcined gypsum plaster used as the primary ingredient in drywall finishing compounds. Under HTS 2520.20.00.00 when imported as bulk powder before mixing with fillers and polymers. Provides the chemical setting action essential for professional drywall installations.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Import as bulk powder only; pre-mixed compounds classify under 3212.90 as finishing agents
• Provide lab analysis showing gypsum >90% composition to maintain mineral product status
• Confirm absence of vinyl polymers that would shift classification to Chapter 39 plastics