Calcium Sulfonate Concrete Accelerator
A powdered additive made entirely from inorganic calcium sulfonate compounds used to accelerate the setting time of concrete in cold weather applications. It falls under HTS 3824.40.20.00 as a prepared additive for cements and concretes consisting wholly of inorganic substances. This product enhances early strength development without affecting final compressive strength.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing organic polymers
Additives with organic binding agents like polymers shift to the organic substances subheading.
If imported as pure hydrogen peroxide solution
Pure inorganic chemicals like hydrogen peroxide without admixture for concrete use classify under their specific inorganic heading.
If bulk calcium phosphate salts
Unmixed inorganic salts not prepared specifically as concrete additives fall under phosphate chemical headings.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify 100% inorganic composition via lab analysis to avoid reclassification; obtain supplier certificates confirming no organic content; ensure proper labeling as 'inorganic concrete additive' for CBP review
Related Products under HTS 3824.40.20.00
Sodium Silicate Cement Hardener
A liquid preparation of sodium silicate (water glass) used as a hardener and dust proofer for concrete floors and surfaces. Classified under HTS 3824.40.20.00 because it consists wholly of inorganic silicate compounds prepared for cement and concrete applications. It penetrates concrete to form a hardened silica gel layer.
Zinc Oxide Concrete Corrosion Inhibitor
An inorganic powder additive containing zinc oxide compounds designed to inhibit corrosion of steel reinforcement in concrete structures. It qualifies for HTS 3824.40.20.00 as a prepared inorganic additive specifically for cement and concrete use. The zinc reacts to form protective layers on rebar surfaces.
Potassium Ferrate Concrete Waterproofer
A specialized inorganic salt preparation of potassium ferrate used to waterproof and strengthen concrete by reacting with water to form insoluble complexes. Falls under HTS 3824.40.20.00 as it consists wholly of inorganic ferrate compounds prepared for concrete applications. Provides permanent internal waterproofing.
Lithium Silicate Concrete Densifier
A colloidal solution of lithium silicate used to densify and harden freshly placed concrete surfaces by chemical reaction forming calcium silicate hydrate. Classified HTS 3824.40.20.00 as wholly inorganic prepared additive for concrete. Increases surface abrasion resistance dramatically.
Magnesium Oxy Chloride Concrete Accelerator
A dry powder mix of magnesium oxide and magnesium chloride used to produce fast-setting magnesium oxychloride concrete for rapid repair applications. HTS 3824.40.20.00 applies as it's composed entirely of inorganic magnesium compounds prepared for cement use. Sets in 10-30 minutes.
Sodium Aluminate Cement Accelerator
An inorganic solution of sodium aluminate that accelerates cement hydration and provides early strength in oil well cementing applications. Classifies under HTS 3824.40.20.00 as wholly inorganic prepared concrete additive. Essential for high-temperature well cementing.