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HSChapter 32
U.S. imports of prepared driers (HS 321100) totaled $1.4M in April 2026, traded with 15 countries.
Importers of Prepared Driers paid $184K in duties in April 2026 — an effective duty rate of 14% on $1.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataPrepared driers are metal-organic compounds — typically cobalt, manganese, zirconium, or calcium soaps — added to alkyd and oil-based coatings to catalyze oxidative crosslinking and accelerate dry times. Spain leads US imports under this heading, followed by Austria and France, reflecting European dominance in specialty organometallic chemistry for the coatings industry. Because prepared driers are functional additives rather than finished coatings, they classify separately from the paints they serve; importers should confirm that the product is a formulated drier blend rather than a pure metal salt, which could fall under a different chemical heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Heading 3211 covers formulated drier preparations — blends of metal soaps (such as cobalt, manganese, or zirconium octoates or naphthenates) combined with solvents or other components ready for addition to coatings. A pure, single-component metal carboxylate salt without formulation additives would typically classify under Chapter 29 (organic chemicals) rather than 3211. The presence of a solvent carrier or a multi-metal blend is a strong indicator of a prepared drier.
Cobalt compounds face increasing scrutiny under occupational health and environmental regulations in various jurisdictions, though US import classification itself does not impose specific admissibility restrictions on prepared driers. Importers should nonetheless review OSHA hazard communication requirements and ensure SDS documentation is current, particularly for cobalt-containing formulations, as downstream users may require compliance documentation.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 3211000000 | PREPARED DRIERS | $1.4M | 13.88% | $184K |
PREPARED DRIERS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3211000000 | PREPARED DRIERS | $988K |
PREPARED DRIERS
72.4K kg
MASTICS; PAINTERS' FILLINGS
HS 321410
PIGMNTS/PREPS CONT =>80% TITANIUM DIOXIDE, DRY WT
HS 320611
PRINTING INK, OTHER THAN BLACK
HS 321519
COLORING MATTER OF VEGETABLE OR ANIMAL ORIGIN
HS 320300
PIGMENTS & PREPARATIONS BASED THEREON
HS 320417
PAINTS & VARNISHES,IN NONAQUEUS MEDIUM,NESOI
HS 320890
| State | Imports | Exports | Balance |
|---|---|---|---|
| Pennsylvania | $287K | $358K | +$71K |
| New Jersey | $612K | $16K | -$596K |
| Indiana | $305K | -- | -$305K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEW YORK, NY | $74K | $452K | +$378K |
| NEWARK, NJ | $458K | -- | -$458K |
| LAREDO, TX | -- | $292K | +$292K |