Modified Aromatic Polyurethane Binder
Industrial binder formulation for foundry cores and molds, incorporating modified aromatic isocyanates exceeding 5% by weight for superior adhesion and heat resistance. Falls under HTS 3824.99.2900 as a prepared chemical mixture n.e.s. with aromatic substances, distinct from basic polymers.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 6.5% | +25.0% | 31.5% |
| 🇲🇽Mexico | 6.5% | — | 6.5% |
| 🇨🇦Canada | 6.5% | — | 6.5% |
| 🇩🇪Germany | 6.5% | — | 6.5% |
| 🇯🇵Japan | 6.5% | — | 6.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied as primary polyurethanes without modifiers
Unmodified polyurethane polymers classify under 3909, but mixtures with aromatic modifiers go to 3824.
If aromatic content below 5% threshold
Lower aromatic mixtures fall into the general 'other' subheading 3824.99.9290.
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Import Tips & Compliance
• Ensure foundry binder declaration matches composition to avoid reclassification; provide end-use certificates for industrial applications
• Watch for VOC content compliance under EPA rules
Related Products under HTS 3824.99.29.00
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A two-part chemical preparation used as a hardener for epoxy resins, containing over 5% aromatic substances like benzyl alcohol and phenyl glycidyl ether for enhanced curing properties. Classified under HTS 3824.99.2900 as a chemical mixture n.e.s. with significant aromatic content, not fitting other specific headings in chapter 38.
Aromatic Solvent-Based Paint Thinner Blend
A solvent mixture for thinning industrial paints and coatings, containing more than 5% aromatic hydrocarbons like xylene and toluene for effective viscosity reduction. HTS 3824.99.2900 applies to this n.e.s. chemical preparation due to its aromatic composition and mixed nature.
High-Aromatic Flux Remover Preparation
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Aromatic-Modified Adhesive Promoter Primer
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Benzene-Derivative Chemical Cleaning Concentrate
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Toluene-Based Rubber Accelerator Mixture
Vulcanization accelerator blend for rubber compounding, containing toluene and other aromatics exceeding 5% for processing efficiency. This n.e.s. preparation fits HTS 3824.99.2900 due to its aromatic mixture profile.