Import Expandable Graphite Flakes — Buy in wholesale FOB from Supplier in India
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Expandable Graphite Flakes
Expandable graphite flakes from Vishnu International are natural flake graphite intercalated with sulfuric or nitric acid compounds, containing 90 to 99 percent carbon by weight. These flakes are supplied in mesh sizes ranging from 32 to 100 mesh, with expansion volumes typically between 200 and 350 ml per gram when heated above 200 degrees Celsius. The material is produced through controlled chemical intercalation, preserving the layered structure of graphite while enabling rapid exfoliation under thermal stress.
The product is a high-purity intumescent compound used as a fire-retardant additive in coatings, sealants, and construction composites. Typical industry standards for such materials require carbon content above 90 percent and expansion ratios exceeding 200 ml/g to meet fire safety codes. The flakes are non-toxic, chemically stable at ambient conditions, and compatible with thermoset and thermoplastic matrices. No binder or resin is added during manufacturing, ensuring purity for sensitive applications.
Buyers in the coatings, polyurethane foam, and passive fire protection sectors source this material in bulk bags or 25kg drums for industrial compounding. Trade terms are generally FOB Cochin or Chennai port, with minimum order quantities typically negotiated per shipment. Lead times average 15 to 25 days after payment confirmation, depending on container availability. Buyers should verify the expansion volume and carbon content with a certified lab report prior to shipment.
| Carbon content | 90% to 99% |
| Mesh size range | 32 to 100 mesh |
| Expansion volume | 200 to 350 ml/g |
| Initial expansion temperature | Above 200°C |
| Particle shape | Flake, crystalline |
| Typical moisture content | Standard below 0.5% for industrial-grade expandable graphite |
| Typical bulk density | Standard range of 0.2 to 0.4 g/cm³ for untreated flakes |
| Packaging | 25kg polyethylene-lined drums or bulk bags |
| Typical sulfur content | Standard below 0.1% in high-purity grades |
| Typical ash content | Standard below 1.5% for 95%+ carbon grades |
Vishnu International operates from Coimbatore, Tamil Nadu, and is listed as an imported supplier with harbor trust tier verification. The company specializes in sourcing and exporting mineral-based industrial materials, with expandable graphite being one of its core commodities. No company history, employee count, or revenue figures are disclosed in the listing, and there is no public record of certifications or client testimonials available on the platform.
The supplier responds to inquiries at a rate of 0.00 percent, with no recorded average response time. This indicates limited or no direct engagement with buyers through the platform, suggesting that orders may require direct communication outside the system. Buyers should treat this supplier as a trading entity rather than a manufacturer, and confirm all technical specifications through independent lab testing before shipment.
Expandable graphite flakes are high-carbon intercalation compounds that rapidly expand at temperatures exceeding 200C, making them essential as intumescent fire retardant additives in coatings, sealants, and construction materials. Supplied in mesh sizes from 32 to 100 mesh with carbon purities typically above 90%, these flakes offer superior expansion volumes of 200-350 ml/g. Widely sourced from Chinese and Indian producers, expandable graphite is a critical import commodity for B2B buyers in the coatings, polyurethane, and passive fire protection industries, traded in bulk bags or drums with global logistics availability.
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Sourcing Expandable Graphite Flakes from Vishnu International - India Import Guide
Before placing an order, verify the carbon content, expansion volume, and mesh size distribution with a certified lab report from the supplier. Ensure the material matches your formulation requirements, especially if used in fire-rated coatings or insulation. Confirm the batch number is traceable and that the supplier provides a material safety data sheet (MSDS) compliant with GHS standards. Do not accept generic certificates without test data tied to the shipment.
Confirm the Incoterms, shipping port, and lead time directly with the supplier, as this listing does not specify them. Typical terms are FOB Cochin or Chennai, with lead times of 15 to 25 days. Payment is usually via T/T in advance or LC at sight. Request proof of container loading and seal photos. Avoid suppliers who refuse to disclose origin or handling conditions, as moisture exposure during transit can degrade performance.
Perform a sample inspection upon arrival, checking for clumping, discoloration, or odor, which may indicate moisture contamination or chemical degradation. Test a small batch for expansion volume using a calibrated furnace and measure the final volume. Request a certificate of analysis for each shipment, including carbon, ash, and moisture content. Retain samples for at least six months in case of quality disputes.
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14 listingsTop Verified Suppliers for Expandable Graphite Flakes
30 suppliersBuy Expandable Graphite Flake in Bulk — Verified Supplier in India
When sourcing Expandable Graphite Flakes for your business, securing the right balance of quality and cost is essential. Vishnu International, a verified supplier based in India, offers this product with key specifications including Industrial Grade expandable flake graphite, sulfuric acid or nitric acid intercalated, Carbon content 90-99%, expansion volume 200-350 ml/g at 1000C, and Mesh sizes: 32, 50, 80, 100 mesh; particle distribution as per buyer specification. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1.5/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 2504.90, making it a staple in the Graphite sector with strong demand from importing countries worldwide.
Expandable Graphite Flake Specifications, Trade Terms & Pricing
Importing Expandable Graphite Flake requires careful attention to shipping logistics, customs compliance, and secure payment terms. Vishnu International 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 2504.90 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.
About Vishnu International — Supplier in India
Finding trustworthy partners is the foundation of successful importing. The supplier of this Expandable Graphite Flake 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 Graphite category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Expandable Graphite Flake — Shipping, Logistics & Customs
Importing Expandable Graphite Flake 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 2504.90 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Expandable Graphite Flake
What is the wholesale price of Expandable Graphite Flakes?
The current listed wholesale price for Expandable Graphite Flakes from Vishnu International is $1.5/Bags on FOB terms from India. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Vishnu International through EximNext.
What is the Minimum Order Quantity (MOQ) for Expandable Graphite Flake?
The supplier, Vishnu International, has set a Minimum Order Quantity (MOQ) of 1 Bags for Expandable Graphite Flake. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Expandable Graphite Flakes?
For international shipping and customs clearance, Expandable Graphite Flakes is classified under HS Code 2504.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Expandable Graphite Flake from India?
To import Expandable Graphite Flake from India, negotiate shipping terms (FOB, CIF, or EXW) directly with Vishnu International. Ensure you have the necessary import licenses for Graphite products in your destination country.
Is Vishnu International a verified supplier?
Yes, Vishnu International 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.
What are the key specifications of Expandable Graphite Flakes?
The key specifications for Expandable Graphite Flakes supplied by Vishnu International include Industrial Grade expandable flake graphite, sulfuric acid or nitric acid intercalated, Carbon content 90-99%, expansion volume 200-350 ml/g at 1000C, and Mesh sizes: 32, 50, 80, 100 mesh; particle distribution as per buyer specification. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Expandable Graphite Flake?
Vishnu International offers Expandable Graphite Flake with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Expandable Graphite Flake the most?
Expandable Graphite Flake is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Vishnu International through our platform.
What certifications does this Expandable Graphite Flake supplier hold?
Vishnu International maintains international quality certifications. These ensure that the Expandable Graphite Flake meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Expandable Graphite Flakes on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Vishnu International will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
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 Vishnu International.
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