Polystyrene-Based Cement Dispersant
A powdered dispersant with modified polystyrene (aromatic polymer) exceeding 5% by weight, added to concrete to prevent clumping and enhance uniformity. Classified in 3824.40.10.00 for its aromatic-modified substances in concrete preparations. Ideal for high-performance ready-mix applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as pure polystyrene resin without admixture formulation
Unmixed polymers are classified by plastic type in Chapter 39, not as prepared chemical additives.
If for non-aromatic polymer-based dispersants
Absence of aromatic substances moves to other cement additive categories.
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Import Tips & Compliance
• Provide manufacturer specs confirming polystyrene aromatic content; check REACH compliance if from EU
• Avoid bulk packaging that could imply industrial chemical rather than prepared additive
Related Products under HTS 3824.40.10.00
Aromatic Plasticizer Concrete Admixture
A liquid additive for cement and concrete mixes containing over 5% aromatic substances like alkylbenzene sulfonates to improve workability and reduce water demand. It falls under HTS 3824.40.10.00 due to its high aromatic content used as a prepared additive for concretes. This ensures better flow and strength in construction applications.
Aromatic Sulfonate Water Reducer for Mortar
Concentrated liquid water-reducing agent with sodium naphthalene sulfonate (>5% aromatic) for mortars and concretes, improving strength by minimizing water. HTS 3824.40.10.00 applies due to aromatic substance threshold in prepared additives. Commonly used in tile adhesives and masonry.
Modified Styrene Acrylic Concrete Superplasticizer
High-range water reducer blending styrene (aromatic) and acrylic polymers over 5% by weight for self-compacting concrete. Falls under 3824.40.10.00 as aromatic-containing prepared concrete additive. Enables pumpable mixes with superior slump retention.
Benzene Derivative Accelerating Admixture for Concrete
Set-accelerating liquid with benzene-based compounds (>5% aromatics) to speed concrete curing in cold weather. HTS 3824.40.10.00 for aromatic prepared additives in concretes. Reduces waiting time for formwork removal.
Toluene-Modified Air Entraining Agent
Foaming additive with toluene-modified resins (aromatic >5%) creating microscopic air bubbles in concrete for freeze-thaw resistance. Classified 3824.40.10.00 as aromatic concrete preparation. Essential for durable pavements and bridges.
Xylene-Based Waterproofing Concrete Additive
Penetrating sealer admixture with xylene derivatives (>5% aromatics) for hydrophobic concrete surfaces. HTS 3824.40.10.00 due to aromatic content in mortar/concrete preparations. Prevents water ingress in basements and pools.