Powders
Zinc dust, powders and flakes: > Other: > Powders
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 7903.90.30.00
Zinc Dust for Rubber Vulcanization
Fine zinc dust powder used as an activator in the vulcanization process of rubber tires and products. Classified under HTS 7903.90.30.00 as it meets the chapter definition of zinc dust with at least 85% metallic zinc and particles finer than 63 microns. It is produced by condensation of zinc vapor for industrial compounding applications.
Atomized Zinc Powder for Paints
High-purity atomized zinc powder designed for anti-corrosion primer paints and coatings. Falls under HTS 7903.90.30.00 as zinc powder distinct from dust, used in industrial paint manufacturing. Particle size typically 10-50 microns for optimal dispersion.
Spherical Zinc Dust for Diamond Polishing
Ultra-fine spherical zinc dust obtained from zinc vapor condensation, used in diamond polishing compounds. Meets HTS 7903.90.30.00 zinc dust definition with 90%+ particles passing 63-micron sieve and 97% metallic zinc purity.
Zinc Flake Powder for Brake Linings
Zinc powder in flake form used as friction modifier in automotive brake lining formulations. Classified as 'other powders' under HTS 7903.90.30.00, distinct from dust due to morphology but suitable for composite materials.
High-Purity Zinc Powder for Batteries
Ultra-fine zinc powder (>99% purity) for alkaline battery anode production. HTS 7903.90.30.00 applies to this powder form used in electrochemical applications, meeting powder specifications.
Zinc Dust for Pyrotechnics
Specialty zinc dust with controlled particle size for pyrotechnic compositions and fireworks production. Precisely matches HTS 7903.90.30.00 zinc dust definition including vapor condensation origin and micron sieve compliance.
Microfine Zinc Powder for 3D Printing
Spherical microfine zinc powder optimized for metal 3D printing and additive manufacturing processes. HTS 7903.90.30.00 covers this high-tech powder application with 15-45 micron particle distribution.
Zinc Powder for Catalyst Manufacturing
High surface area zinc powder used as precursor in heterogeneous catalyst production for chemical processing. Fits HTS 7903.90.30.00 as industrial powder meeting zinc content specifications.
Galvanizing Zinc Dust Recovery Powder
Recycled zinc dust from hot-dip galvanizing kettle dross processing, suitable for powder coating applications. Recovered material meets HTS 7903.90.30.00 powder specifications despite secondary origin.
Zinc Powder for Sintered Bronze Bearings
Fine zinc powder blended with copper for producing sintered bronze bearings and bushings. HTS 7903.90.30.00 applies to the pure zinc powder component before metallurgical mixing.