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Foundry bentonite binds sand particles which results in the mold strength. The main advantage of bentonite is an ability to restore its properties after extra moistening. This makes it possible to use the foundry sand after pouring metal and knockout of casting several times. This sodium-based bentonite is capable of swelling approximately 15 times its dry volume. In molding sand, it helps molding maintain its dimensional accuracy and provides a greater dry/hot strength. Packaging : Foundry Bentonite is available in 25 kg sacks and 1 ton jumbo bag.
Key Specifications: HS Code: 2508.10 | Material: Sodium-Montmorillonite Bentonite Clay, Ca-Na Type | Grade/Type: Foundry Grade / Green Sand Molding Bentonite | Purity/Composition: Montmorillonite (Smectite) Content: Min. 85%, SiO2: 55-65%, Al2O3: 15-25%, Na2O + CaO: 2-6% | Swelling Index: Min. 20 mL/g (typically 20-30 mL/g) | Particle Size: Min. 95% passing 75 microns (200 mesh) | Moisture Content: Max. 12% | Standard: AFS (American Foundry Society) or ISO 13503 / GB/T 20911 (Chinese Standard for Foundry Bentonite) | Application: Green sand mold binding for iron, steel, and non-ferrous metal casting; core making; pit molding | Packaging: 25kg bags, 500kg/1000kg big bags, or bulk silo supply | Origin: India, USA, Greece, Turkey (major global producers)
Supply & Ordering: Minimum Order Quantity: 1 Unit
HS Code: 2508.10 — classified under Ores and Minerals.
| HS Code | 2508.10 |
| Material | Sodium-Montmorillonite Bentonite Clay, Ca-Na Type |
| Grade/Type | Foundry Grade / Green Sand Molding Bentonite |
| Purity/Composition | Montmorillonite (Smectite) Content: Min. 85%, SiO2: 55-65%, Al2O3: 15-25%, Na2O + CaO: 2-6% |
| Swelling Index | Min. 20 mL/g (typically 20-30 mL/g) |
| Particle Size | Min. 95% passing 75 microns (200 mesh) |
| Moisture Content | Max. 12% |
| Standard | AFS (American Foundry Society) or ISO 13503 / GB/T 20911 (Chinese Standard for Foundry Bentonite) |
| Application | Green sand mold binding for iron, steel, and non-ferrous metal casting; core making; pit molding |
| Packaging | 25kg bags, 500kg/1000kg big bags, or bulk silo supply |
| Origin | India, USA, Greece, Turkey (major global producers) |
Foundry bentonite is a sodium-activated calcium montmorillonite clay widely used as a binder in green sand molding for ferrous and non-ferrous metal casting. This high-swelling bentonite delivers excellent dry and hot compression strength, with the critical ability to rehydrate and restore binding properties after multiple uses, reducing material waste in high-volume foundry operations. Supplied as a fine powder with typical mesh passing 95% at 75 microns, it is competitively priced for global trade at $200-350 per metric ton depending on origin and specifications.
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| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Foundry Bentonite is offered by Sphinx Milling Station, a Supplier based in Egypt, in wholesale quantities for importers, distributors, and trade buyers. Contact the supplier to request pricing, minimum order quantity, and shipping terms for your destination.
When importing Foundry Bentonite, confirm trade terms such as FOB or CIF, packaging, and any certification or documentation you need directly with the supplier before placing a bulk order.
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When sourcing Foundry Bentonite for your business, securing the right balance of quality and cost is essential. Sphinx Milling Station, a verified supplier based in Egypt, offers this product with key specifications including Foundry Grade / Green Sand Molding Bentonite, Montmorillonite (Smectite) Content: Min. 85%, SiO2: 55-65%, Al2O3: 15-25%, Na2O + CaO: 2-6%, and Min. 20 mL/g (typically 20-30 mL/g). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $200350./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 2508.10, making it a staple in the Bentonite sector with strong demand from importing countries worldwide.
Importing Foundry Bentonite requires careful attention to shipping logistics, customs compliance, and secure payment terms. Sphinx Milling Station offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 2508.10 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Foundry Bentonite has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Bentonite category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Importing Foundry Bentonite requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 2508.10 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Foundry Bentonite from Sphinx Milling Station is $200350./Unit on FOB terms from Egypt. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Sphinx Milling Station through EximNext.
The supplier, Sphinx Milling Station, has set a Minimum Order Quantity (MOQ) of 1 Unit for Foundry Bentonite. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Foundry Bentonite is classified under HS Code 2508.10. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Foundry Bentonite from Egypt, negotiate shipping terms (FOB, CIF, or EXW) directly with Sphinx Milling Station. Ensure you have the necessary import licenses for Bentonite products in your destination country.
Yes, Sphinx Milling Station is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
The key specifications for Foundry Bentonite supplied by Sphinx Milling Station include Foundry Grade / Green Sand Molding Bentonite, Montmorillonite (Smectite) Content: Min. 85%, SiO2: 55-65%, Al2O3: 15-25%, Na2O + CaO: 2-6%, and Min. 20 mL/g (typically 20-30 mL/g). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Sphinx Milling Station offers Foundry Bentonite with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Foundry Bentonite is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Sphinx Milling Station through our platform.
Sphinx Milling Station maintains international quality certifications. These ensure that the Foundry Bentonite meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Sphinx Milling Station will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Sphinx Milling Station.
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