Zinc Dust for Rubber Vulcanization
Fine zinc dust produced by condensing zinc vapor, used as an activator in rubber vulcanization processes. It meets chapter definitions with at least 85% metallic zinc and 80% of particles passing 63-micron sieve, classifying under 7903.90.60.00 as other zinc dust.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in flake form
Zinc flakes have different morphology and production, falling under the specific subheading for flakes.
If chemically treated or in dispersion
Prepared chemical products or dispersions containing zinc dust shift to Chapter 38 for chemical preparations.
If used in jewelry manufacturing as base material
Zinc dust for specific end-use in gold/silver working classifies under Chapter 71 as other articles of precious metal working.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify zinc content certification (min 85% metallic zinc) and particle size analysis to confirm HTS 7903.90.60.00 classification
• Provide Material Safety Data Sheets (MSDS) for handling hazardous fine powders during customs clearance
• Avoid misclassification as zinc powder by proving vapor condensation method via manufacturer specs
Related Products under HTS 7903.90.60.00
High-Purity Zinc Dust for Paint Pigments
Spherical zinc dust from vapor condensation, ideal for anti-corrosive paint formulations due to its fine particle size (<63 microns). Classified in 7903.90.60.00 as other zinc dust per chapter note (c) definitions.
Zinc Dust for Diamond Polishing Compounds
Ultra-fine zinc dust meeting chapter note (c) specs, used as a binder in diamond polishing slurries for gemstone and industrial diamond finishing. Falls under 7903.90.60.00 as other zinc dust/powders/flakes.
Metallic Zinc Dust for Pyrotechnics
Fine spherical zinc dust from zinc vapor condensation, containing ≥85% metallic zinc, used in pyrotechnic compositions for sparks and effects. HTS 7903.90.60.00 covers this as other zinc dust.
Industrial Zinc Dust for Chemical Synthesis
High-grade zinc dust with 90%+ metallic content and fine particle distribution (<63 microns), employed as a reducing agent in organic synthesis reactions. Classified under 7903.90.60.00 per precise chapter definitions.