Rheomac SF100 Synthetic Defoamer for Concrete
A silicone-free defoaming agent that controls entrapped air in concrete mixes, preventing segregation and surface defects. This prepared additive for concrete is classified under 3824.40.00 as it modifies the air content and stability of fresh concrete.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the defoamer is used in non-concrete applications such as paints or coatings
Anti-foaming preparations for other industrial uses are classified as other chemical products.
If the product contains surface-active agents
Surface-active preparations, whether or not containing soap, are classified in Chapter 34.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the product is labelled as a concrete admixture and not as a general industrial defoamer, as this could lead to a different classification
• Check whether the product contains any volatile organic compounds that may trigger reporting requirements under Canadian environmental regulations
• Keep records of the product's formulation to support the classification if challenged by the CBSA
Related Products under Tariff item 3824.40.00
Aluminum Powder Concrete Aerating Agent
> Fine aluminum powder prepared with inorganic gas-generating activators to produce air-entrained concrete for freeze-thaw resistance. This product is a prepared additive for cements, mortars, or concretes, creating stable microscopic air bubbles.
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. This product is a prepared additive specifically formulated for use in cements, mortars, or concretes, and is classified under tariff item 3824.40.00.
Aromatic Polyol Retarder for High-Performance Concrete
> A sugar-derived polyol retarder with aromatic modifiers (>5%) extending concrete setting time for hot weather pours. This product is a prepared additive for cements, mortars, or concretes, designed to control setting time and improve workability in high-temperature conditions.
Aromatic Sulfonate Water Reducer for Mortar
> A concentrated liquid water-reducing agent with sodium naphthalene sulfonate (>5% aromatic) for mortars and concretes, improving strength by minimizing water. This product is a prepared additive specifically designed for use in cementitious mixes, falling under tariff item 3824.40.00.
Barium Metaborate Concrete Fire Retardant
> Inorganic barium metaborate powder incorporated into cement mixes to impart fire resistance and reduce combustible material passage. This product is a prepared additive for cements, mortars, or concretes, classified under tariff item 3824.40.00.
BASF MasterGlenium 51 High-Range Water Reducer
A third-generation superplasticizer admixture that disperses cement particles for improved concrete rheology and early strength development. This product is a prepared additive for concretes, falling under tariff item 3824.40.00.