Import Bentonite — Buy in Bulk from Supplier in China

Bentonite from Jinzhou Wuzhou Trading Co., Ltd. is a sodium or calcium-based smectite clay extracted from Chinese deposits, characterised by its high swelling capacity when hydrated. The material exhibits a typical liquid limit of 300-500%, a plasticity index ranging from 200-400%, and a specific surface area of 50-100 m²/g depending on grade and source layer. This particular listing originates from Liaoning Province in north-eastern China, a region with established bentonite mining operations serving both domestic foundry and drilling-fluid markets.

The mineral structure centres on montmorillonite, typically comprising 60-85% of commercial grades, with accessory minerals including quartz, feldspar and calcite. Swelling index, measured in mL/2g using the ASTM D5890 method, is a critical quality differentiator, standard grades yielding 25-35 mL while premium drilling grades exceed 40 mL. Viscosity at 600 rpm, measured via Fann viscometer, typically falls between 30-50 cP for standard bentonite and 50-70 cP for high-yield drilling grades. The cation exchange capacity (CEC) ranges from 70-120 meq/100g, influencing its suitability for organophilic modification or environmental sealing applications.

Primary buyers include oilfield service companies formulating drilling muds, foundries binding green sand moulds, and civil engineering contractors installing slurry walls or landfill liners. Agriculture sector purchasers use it as a pellet binder in feed and as a soil amendment to improve water retention. Packaging for bulk industrial bentonite is typically 25 kg multi-wall paper bags, 1-tonne bulk bags, or bulk pneumatic tanker for volumes exceeding 20 tonnes. Buyers should confirm the supplier's exact mesh size, moisture content at shipment, and whether the material is offered as powder, granules, or customised blends.

Jinzhou Wuzhou Trading Co., Ltd. is located at No.16-12, Taihe District, Jinzhou 121000, in Liaoning Province, north-eastern China. The supplier operates under an imported tier classification within the marketplace, with a harbour trust tier indicating baseline profile verification rather than advanced vetting. The response rate is recorded at 0.00% with zero average response hours, which suggests the supplier may not actively monitor enquiries through this channel or has not engaged recent buyer contact.

The supplier profile contains no stated factory ownership, production capacity, export licence numbers, or third-party audit results. There is no mention of ISO, SGS or other certification scope details beyond generic marketing language. Buyers should treat this as a trading company rather than a manufacturer, and independently verify the supplier's actual relationship to Liaoning bentonite mines, their ability to provide consistent grade batches, and their experience with export documentation such as MSDS, certificate of origin, and quality inspection reports. Direct communication to establish responsiveness and technical competence is essential before committing to trial orders.