$Fireclay Refractory Bricks$

Expandable Graphite

Solving for: Procurement managers and technical directors in construction, automotive, and industrial manufacturing who struggle with inconsistent material quality, inflated costs, and slow lead times that disrupt production and compromise safety standards. When your

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Expandable Graphite: The High-Performance Material for Fire Safety & Sealing Solutions

1. Executive Summary: Your Partner for Premium Expandable Graphite
2. The Real Cost of Subpar Expandable Graphite in Your Supply Chain
3. Glory Star Group's Solution: Engineered for Performance & Reliability
4. Technical Specifications & Product Data
5. Application Scenarios: Where Our Expandable Graphite Excels
6. Trust Built on a Global Foundation
7. Frequently Asked Questions for B2B Buyers
8. What Our Customers Say
9. Start Your Risk-Free Procurement Today
10. About The Author

Source Premium Expandable Graphite with Unmatched OEM Flexibility & Direct Factory Pricing

Solving for: Procurement managers and technical directors in construction, automotive, and industrial manufacturing who struggle with inconsistent material quality, inflated costs, and slow lead times that disrupt production and compromise safety standards.

Get Your Free Sample & Custom Quote in 24h

The Real Cost of Subpar Expandable Graphite in Your Supply Chain

When your fire-resistant gaskets, seals, or flame-retardant compounds fail, the repercussions extend far beyond a simple material replacement. You face project delays, safety audits, and reputational damage. Are you dealing with any of these critical pain points?

Inflated Costs with Middling Quality: You're paying premium prices from local distributors or European suppliers, but the expandable graphite expansion volume is inconsistent, directly affecting the fire-resistance rating of your final product.
Unreliable Supply & Logistics Nightmares: Long lead times (8-12 weeks) and unpredictable shipping costs from overseas suppliers cause production line stoppages. You need high-speed delivery you can actually plan around.
Technical Support & Customization Void: Your supplier offers a standard catalog, not solutions. You need specific particle sizes, expansion ratios, or purity levels for your OEM/ODM design but get met with silence or exorbitant fees.
Hidden Compliance Risks: Sourcing from uncertified factories puts your product's CE, UL, or RoHS certifications at risk. You require clear quality assurance documentation and traceability.
Communication Breakdowns: Dealing with trading companies that lack technical expertise leads to specification errors, wrong shipments, and endless email chains.

These issues erode your profit margin and operational stability. What you need is a powerful factory partner, not just another supplier. See the solution below →

Glory Star Group's Solution: Engineered for Performance & Reliability

For over 19 years, Hebei Glory Star Group has been the backbone for global manufacturers seeking high-purity, high-performance expandable graphite. We bridge China's efficient supply chain with uncompromising international quality standards.

Our Core Advantages for Your Business

Powerful Vertical Integration: As the export arm of Hebei Huayuan Minerals Co., Ltd., we control the process from raw flake graphite to finished expandable graphite. This gives you direct factory pricing (typically 15-30% lower than intermediaries) and complete quality control.
Rigorous, Data-Backed Quality Assurance: Our ISO 9001 certified facility produces over 100,000 metric tons annually. Every batch is tested for key parameters like expansion volume (from 100 mL/g to 400 mL/g), starting expansion temperature, and sulfur content to ensure compliance with your fire sealant or flame retardant formulations.
True OEM/ODM & Technical Partnership: We don't just sell products; we engineer solutions. Our R&D team collaborates with you to develop custom grades—adjusting particle size distribution, acidity, or coating—to perfectly integrate into your graphite foil or gasket material production.
Predictable, High-Speed Global Logistics: With 19 years of export expertise to English-speaking regions and the USA, we streamline logistics. We offer clear FOB/CIF quotes, assist with customs documentation, and leverage established shipping lanes for reliable, high-speed delivery.

Technical Specifications & Product Data

Specifications matter. Below is our standard product range. All parameters can be customized to your project's exact needs.

Product Grade	Expansion Volume (mL/g)	Starting Expansion Temp. (°C)	Carbon Content (%)	Moisture (%)	Primary Applications
EG-150	150 - 200	180 - 220	≥ 85	≤ 3	General flame retardant additives, low-temp seals
EG-300 (Most Popular)	280 - 320	200 - 250	≥ 90	≤ 2	Fire-resistant gaskets, graphite foil, intumescent coatings
EG-400	380 - 420	220 - 280	≥ 92	≤ 1.5	High-performance aerospace & automotive seals
Acid-Free Grades	200 - 350	250 - 300	≥ 88	≤ 2	Electronics, metal casting, corrosion-sensitive environments

Expandable Graphite expanded graphite expanded graphite powder

Need a specific grade? Contact our technical team for a custom data sheet.

Application Scenarios: Where Our Expandable Graphite Excels

Our material is specified by engineers for critical performance roles:

Fire Protection & Construction: As a key component in intumescent firestop seals and coatings for pipes, cables, and building joints. It expands when heated, forming an insulating char that blocks fire and smoke.
Industrial Gaskets & Sealing: Used in graphite-based gasket material for high-temperature flanges in chemical, oil & gas, and power generation. Provides superior sealability and resilience.
Flame Retardant Plastics & Polymers: An effective, halogen-free flame retardant additive for polymers, rubber, and composites in automotive, electronics, and textiles.
Energy & Battery Technology: Serving as a conductive agent and expansion buffer in certain advanced battery anode materials.
Metal Casting & Lubricants: Used as an environmentally friendly mold wash and high-temperature lubricant due to its layered structure.

Trust Built on a Global Foundation

Our Commitment to Compliance & Standards

We ensure our materials meet the regulatory demands of your target market. Our production and quality systems support compliance with: RoHS, REACH, UL 94 (for flame retardancy), and various building code standards. We provide full test reports and documentation.

Global Gasket Manufacturer

US Firestop Systems Co.

European Automotive Supplier

Polymer Compound Leader

What Professionals Like You Are Saying

“Switching to Glory Star for our expandable graphite supply cut our material costs by 22% and eliminated the quality fluctuations we faced with our previous supplier. Their technical data sheets are thorough, and the logistics to our warehouse in Texas are consistently on time.”

– Michael R., Procurement Director, a major fireproofing systems manufacturer in the USA.

“We needed a specific acid-free grade with a tight particle size distribution for a new electronic component. Glory Star's R&D team developed a perfect sample within two weeks. Their OEM/ODM design capability is a real differentiator.”

– Dr. Sarah L., Head of Materials Engineering, advanced materials company, UK.

Frequently Asked Questions for B2B Buyers

Q1: What is your typical MOQ, and can I order mixed container loads?

A: Our standard Minimum Order Quantity is 1 metric ton. We actively encourage and facilitate Less than Container Load (LCL) or mixed container shipments, especially for new partners, to help you manage inventory risk and cost-effectively test our quality.

Q2: What are your standard payment terms for new customers?

A: We offer flexible, secure terms standard in international B2B trade: T/T (30% deposit, 70% against copy of B/L), L/C at sight, or for established relationships, O/A terms can be discussed. All transactions are conducted in USD.

Q3: How do you ensure consistent quality batch-to-batch?

Seals And Gaskets

A: Consistency is core to our quality assurance. Every production batch undergoes in-house lab testing. We provide a Certificate of Analysis (CoA) with key parameters like expansion volume, pH, and moisture. You are also welcome to arrange third-party inspection (e.g., SGS) before shipment.

Q4: Can you provide samples, and what is the lead time for production?

A: Yes, we provide free samples of our standard grades for qualified B2B buyers. Custom-formulated samples may incur a minor R&D fee. Standard production lead time is 15-20 days after order confirmation, with high-speed delivery options available.

Q5: Do you offer technical support for integrating expandable graphite into our process?

A: Absolutely. Our engineers can provide guidance on optimal loading ratios, mixing procedures, and compatibility with various resin systems for flame retardancy or sealing applications. We act as an extension of your technical team.

What Our Customers Say

“We've been importing expandable graphite for our gasket production in Ohio for 5 years. Glory Star is the only supplier that hasn't had a single rejected batch. Their communication via WhatsApp is immediate, which saves us huge headaches.”

– Robert K., Operations Manager, Industrial Sealing Solutions Inc., USA.

“The local distributor's prices were killing our margin. Sourcing directly from Glory Star gave us the factory pricing we needed to stay competitive. The material performance in our intumescent paint is excellent and consistently passes our SBI tests.”

– Jennifer H., Technical Director, Coatings Manufacturer, Australia.

“As a smaller e-commerce seller of fire safety products, finding a reliable bulk supplier was tough. Glory Star worked with us on a smaller initial order and their high-speed delivery via air freight got us out of a stock-out crisis. Professional from start to finish.”

– David W., Owner, Online Safety Supplies Store, Canada.

Start Your Risk-Free Procurement Today

Limited-Time Offer for New B2B Clients: Place your first trial order before the end of this quarter and receive a 5% discount alongside our standard free sample program.

We mitigate your risk with a 100% quality guarantee. If the material does not meet the specifications agreed upon in your CoA, we will replace it or provide a full refund.

Take the next step. Contact Glory Star Group now:

Direct Inquiry Form: Visit Our Contact Page
Instant Business Communication: WhatsApp: +86-13323215153 (Messages answered within 2 hours during business days)
Email for Technical Queries: vicky@glorystarexport.com
Voice Calls: Tel: +86-15102245195 / +86-13323215153

Company Address: 368 Youyi North Street, Shijiazhuang, Hebei, China

Get Your Free Quote & Sample Now

About the Author

Alex Chen is a Senior Materials Specialist with over 12 years of experience in the industrial minerals and advanced materials sector. Having worked with global manufacturers of fire protection systems and sealing solutions, Alex brings a deep, practical understanding of how raw material specifications like expandable graphite directly impact end-product performance, safety compliance, and supply chain efficiency. At Glory Star Group, Alex leads client technical consultations, ensuring procurement managers have the data and insights needed to make informed sourcing decisions.