Import Expansion Volume 35ml/G Expandable Graphite — Buy in wholesale FOB from Supplier in China
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Expansion Volume 35ml/g Expandable Graphite
This expandable graphite exhibits a measured expansion volume of 35ml/g, designed for low-temperature intumescent applications such as gaskets, sealants, and thin-film coatings. It activates above 200°C, forming a stable, low-density char layer that insulates substrates from heat. The material is supplied as fine flakes of intercalated natural graphite, optimized for compatibility with solvent-based and aqueous formulations in fire protection systems.
The 35ml/g expansion grade is a lower-expansion variant compared to industrial standards of 150ml/g or higher, making it suitable for applications requiring minimal volume change. Typical expansion ranges for this category fall between 20ml/g and 50ml/g, often used in flexible elastomers or where dimensional stability is critical. The graphite retains high purity with low ash content, consistent with standard intercalation processes using sulfuric acid and oxidants.
Primary users include manufacturers of firestop gaskets for electrical conduits, pipe penetrations, and automotive exhaust systems. Buyers typically source this grade for applications where excessive expansion could distort seals or compromise mechanical integrity. Packaging is usually in 20kg bags or 50kg drums, with FOB Qingdao as the standard trade term. MOQ and lead time must be confirmed directly with the supplier, as these are not disclosed in the listing.
| Expansion Volume | 35ml/g |
| Material Composition | Intercalated natural graphite flakes |
| Particle Size Range | 50 to 150 microns (typical) |
| Initial Decomposition Temperature | 200°C to 210°C (typical) |
| Carbon Content | 97% minimum (typical) |
| Moisture Content | Less than 0.6% (typical) |
| Packaging | 20kg polyethylene bags or 50kg drums |
| Bulk Density | 0.3 to 0.5 g/cm³ (typical) |
| Ash Content | Less than 1.0% (typical) |
| Thermal Stability | Stable below 180°C (standard for low-expansion grades) |
Shandong Sungraf Carbons Co., Ltd was established in 2008 and has over ten years of production experience in expandable graphite. The company states it uses proprietary intercalation technology and maintains ISO9001 quality control, though no certification documents are provided. Its facility is located in Qingdao, Shandong, and the listing confirms export activity but does not specify volume, workforce, or client names.
The supplier references internal laboratory testing and process control but does not mention third-party audits, export volumes, or specific certifications beyond ISO9001. Response rate and average reply time are not available. Buyers should request a sample and ask for test reports on expansion performance, moisture sensitivity, and carbon purity. No claims are made about certifications such as SGS or RoHS.
Expandable graphite with 35ml/g expansion volume is a high-performance intercalated graphite used in fire retardant coatings, intumescent sealants, gaskets, and thermal insulation applications. It expands rapidly when heated above 200°C, creating an insulating char layer that suppresses flame spread. Supplied by experienced Chinese manufacturers, this product is suitable for industrial buyers seeking reliable graphite materials for fire protection systems and high-temperature sealing solutions.
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Sourcing Expansion Volume 35ml/g Expandable Graphite from Shandong Sungraf Carbons Co., Ltd - China Import Guide
Verify the expansion volume under your specific thermal conditions using a TGA instrument. Request a sample and test its activation point and residue quality. Confirm that the supplier’s material matches the 35ml/g specification with lab data. Do not accept claims without physical validation, especially for safety-critical applications like firestop gaskets.
Confirm Incoterms - FOB Qingdao is standard. Lead time is typically 20 to 35 days, depending on order size. Packaging is usually 20kg bags or 50kg drums with inner liners. Payment terms are commonly T/T in advance or L/C. Request written confirmation of shipping conditions and packaging integrity to prevent moisture damage during transit.
Upon receipt, check for clumping or discoloration, which may indicate moisture exposure. Conduct a small-scale expansion test to confirm performance. Request a certificate of analysis for carbon content, ash, and moisture. For fire-rated applications, ensure your final product is tested under UL94 or EN 13501-1. Retain samples for future batch comparisons and quality audits.
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30 suppliersBuy Expansion Volume 35ml/G E in Bulk — Verified Supplier in China
When sourcing Expansion Volume 35ml/G Expandable Graphite for your business, securing the right balance of quality and cost is essential. Shandong Sungraf Carbons Co., Ltd, a verified supplier based in China, offers this product with key specifications including Expandable Graphite, Intercalation Grade, Carbon Content 90-99%, Intercalant (Sulfuric/ Nitric Acid based), and 35 ml/g (minimum) at 200-300°C. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1500/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 3801.90, making it a staple in the Graphite sector with strong demand from importing countries worldwide.
Expansion Volume 35ml/G E Specifications, Trade Terms & Pricing
Importing Expansion Volume 35ml/G E requires careful attention to shipping logistics, customs compliance, and secure payment terms. Shandong Sungraf Carbons Co., Ltd 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 3801.90 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 global B2B marketplace designed to make cross-border trade secure and efficient.
About Shandong Sungraf Carbons Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Expansion Volume 35ml/G E 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 import export marketplace. Start your sourcing journey today.
Import Expansion Volume 35ml/G E — Shipping, Logistics & Customs
Importing Expansion Volume 35ml/G E 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 3801.90 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 Expansion Volume 35ml/G E
What is the wholesale price of Expansion Volume 35ml/G Expandable Graphite?
The current listed wholesale price for Expansion Volume 35ml/G Expandable Graphite from Shandong Sungraf Carbons Co., Ltd is $1500/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Shandong Sungraf Carbons Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Expansion Volume 35ml/G E?
The supplier, Shandong Sungraf Carbons Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Expansion Volume 35ml/G E. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Expansion Volume 35ml/G Expandable Graphite?
For international shipping and customs clearance, Expansion Volume 35ml/G Expandable Graphite is classified under HS Code 3801.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Expansion Volume 35ml/G E from China?
To import Expansion Volume 35ml/G E from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Shandong Sungraf Carbons Co., Ltd. Ensure you have the necessary import licenses for Graphite products in your destination country.
Is Shandong Sungraf Carbons Co., Ltd a verified supplier?
Yes, Shandong Sungraf Carbons Co., Ltd 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 Expansion Volume 35ml/G Expandable Graphite?
The key specifications for Expansion Volume 35ml/G Expandable Graphite supplied by Shandong Sungraf Carbons Co., Ltd include Expandable Graphite, Intercalation Grade, Carbon Content 90-99%, Intercalant (Sulfuric/ Nitric Acid based), and 35 ml/g (minimum) at 200-300°C. 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 Expansion Volume 35ml/G E?
Shandong Sungraf Carbons Co., Ltd offers Expansion Volume 35ml/G E with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Expansion Volume 35ml/G E the most?
Expansion Volume 35ml/G E is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Shandong Sungraf Carbons Co., Ltd through our platform.
What certifications does this Expansion Volume 35ml/G E supplier hold?
Shandong Sungraf Carbons Co., Ltd maintains international quality certifications. These ensure that the Expansion Volume 35ml/G E meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Expansion Volume 35ml/G Expandable Graphite on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Shandong Sungraf Carbons Co., Ltd 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 Shandong Sungraf Carbons Co., Ltd.
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