Barium Naphthenate Paint Dryer
Barium naphthenate acts as a polymerization catalyst and dryer in oil-based paints and inks, derived from water-insoluble naphthenic acid salts. It is covered by HTS 3824.99.7550 as other esters and salts of naphthenic acids for industrial use. This accelerates drying in alkyd formulations without affecting color.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as prepared driers of heading 3211
Dedicated paint driers not specified as naphthenic classify separately from chemical mixtures.
If containing listed persistent pollutants like PCBs
Subheadings 3824.81-3824.89 apply to mixtures with specific hazardous substances per notes.
If for purified naphthenic acid esters only
Pure saturated acyclic monocarboxylic acid esters shift to Chapter 29 organic chemicals.
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Import Tips & Compliance
• Provide formulation breakdown showing naphthenic content >40%; use COO from rulings like HQ H095672
• Include REACH/TSCA certifications; ship as non-DG if below flashpoint thresholds
Related Products under HTS 3824.99.75.50
Cobalt Naphthenate Catalyst for Polyester Resins
Cobalt naphthenate serves as an accelerator in unsaturated polyester resin curing for fiberglass composites. As a water-insoluble naphthenic acid salt, it fits HTS 3824.99.7550 for other such preparations. Used in boat building, automotive parts, and corrosion-resistant tanks.
Lead Naphthenate High-Temperature Lubricant Additive
Lead naphthenate provides extreme pressure protection in high-temperature greases and metalworking fluids as a naphthenic acid salt. HTS 3824.99.7550 includes such industrial water-insoluble salts. Applied in forging, drawing, and heavy machinery.
Calcium Naphthenate Rubber Vulcanization Accelerator
Calcium naphthenate accelerates sulfur vulcanization in tire and rubber compound production as a naphthenic metal salt. Falls under HTS 3824.99.7550 for other such preparations in polymer processing. Improves cure rate and scorch safety.
Naphthenic Acid Methyl Ester Biodiesel Solvent
Methyl esters of naphthenic acids used as co-solvents in biodiesel production to improve cold flow properties. Classified as HTS 3824.99.7550 other naphthenic esters for fuel applications. Derived from tall oil naphthenates via transesterification.
Iron Naphthenate Catalyst for Olefin Polymerization
Iron naphthenate functions as a single-site catalyst precursor in late-transition metal olefin polymerization for polyethylene production. HTS 3824.99.7550 covers other naphthenic salts in petrochemical catalysis. Enables branched polymer architectures.
Sodium Naphthenate Flotation Collector
Despite subheading focus on water-insoluble salts, sodium naphthenate (soluble variant) is sometimes included; used as ore flotation collector in mineral processing. HTS 3824.99.7550 for other naphthenic preparations in mining. Selectively floats copper/molybdenum sulfides.