Zinc Stearate Powder
Zinc stearate is a fine white powder used as a lubricant and release agent in plastics and rubber manufacturing. It qualifies under HTS 3815.90.3000 as a catalytic preparation consisting wholly of inorganic substances, specifically zinc compounds that facilitate polymerization reactions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If contains organic activators
Products with organic substances exceed the 'wholly inorganic' requirement of 3815.90.3000
If sold as general chemical preparation without catalytic claim
Lacks specific reaction initiation properties required for heading 3815
If imported as pure zinc salt without formulation
Basic inorganic salts fall under Chapter 28, not formulated preparations of 3815
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Import Tips & Compliance
• Verify purity certificate to confirm 100% inorganic composition; organic blends shift to 3815.90.5000
• Include technical data sheets proving catalytic function to avoid reclassification as simple chemicals
• Check REACH/EPA restrictions on zinc compounds; obtain TSCA certification for U.S. entry
Related Products under HTS 3815.90.30.00
Aluminum Chlorohydrate Catalyst
Catalytic-grade aluminum chlorohydrate used in polymerization processes for water treatment resins. Classified under 3815.90.3000 as it consists entirely of inorganic aluminum compounds acting as reaction accelerators.
Sodium Perborate Accelerator
Anhydrous sodium perborate used as oxygen bleach catalyst in epoxy resin curing. Falls under HTS 3815.90.3000 as a wholly inorganic reaction accelerator for industrial coatings.
Magnesium Oxide Polymerization Catalyst
High-purity MgO powder serving as catalyst in polypropylene production. Classified in 3815.90.3000 for its wholly inorganic composition and role as reaction initiator.
Titanium Dioxide Accelerator
Nano-grade TiO2 used as photoinitiator in UV-curable coatings. HTS 3815.90.3000 covers this wholly inorganic catalytic preparation for radical polymerization.
Cerium Oxide Polishing Catalyst
Ceria nanoparticles catalyzing chemical mechanical planarization in semiconductor manufacturing. Classified under 3815.90.3000 as inorganic reaction accelerator.
Zeolite Y Reaction Initiator
Synthetic zeolite Y faujasite used as shape-selective catalyst in hydrocarbon cracking. HTS 3815.90.3000 for wholly inorganic aluminosilicate framework.