Carbon Fiber Composite Material Hot Pressing Molding Process
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Carbon Fiber Prepreg Supplier | Prepreg Material for Sale & OEM Manufacturing
Table of Contents
Looking for a reliable carbon fiber prepreg supplier?
We supply high-performance carbon fiber prepreg materials for aerospace, automotive, and industrial applications, with OEM customization, consistent quality, and competitive factory pricing.
✔ Available in T700, T800, IM7, M55J
✔ Epoxy, BMI, and phenolic resin systems
✔ MOQ flexible — from prototyping to mass production
Send us your requirements or STEP files — our engineers will support you within 24 hours.
What Is Carbon Fiber Prepreg?
Carbon fiber prepreg is carbon fiber fabric that’s already soaked in resin. It is carbon fiber reinforcement that has been pre-impregnated with a controlled amount of resin, allowing more consistent processing and part quality.
You just cut it, lay it up, and cure it. No messy resin mixing. No guesswork on ratios.
The result is a lightweight, high-strength composite material with more consistent processing and performance.
As a trusted carbon composite manufacturer, we supply prepreg materials for demanding aerospace, automotive, and industrial applications, with quality control based on recognized industry standards such as ASTM testing and ISO quality systems.
Key Features at a Glance
Here’s what makes carbon fiber prepreg stand out:
- ✅ Pre-impregnated with epoxy or specialty resin — no manual mixing needed
- ✅ Uniform resin distribution — less than 1% porosity for flawless parts
- ✅ High tensile strength — up to 600–700 ksi
- ✅ High stiffness — modulus of 33–36 Msi
- ✅ Lightweight — areal weights from 125 to 300 gsm
- ✅ Corrosion-resistant and fatigue-proof
- ✅ Custom sizes and pre-cut kits available
- ✅ Long shelf life — up to 12 months when stored at -18°C
Full Product Parameters Table
| Parameter | Details |
|---|---|
| Fiber Type | Toray T700, T800, M55J / Hexcel IM7, AS4 / Mitsubishi Carbon |
| Resin System | Epoxy (120°C–180°C), BMI (high-temp), Phenolic (fire-rated) |
| Fabric Style | Unidirectional, 2×2 Twill Weave, Plain Weave, Non-crimp |
| Areal Weight | 125–300 gsm |
| Resin Content | 35% ± 2% |
| Ply Thickness | 0.1–0.5 mm |
| Tensile Strength | 600–700 ksi |
| Modulus | 33–36 Msi |
| Curing Temperature | 120°C–180°C |
| Cure Method | Autoclave, Out-of-Autoclave (OoA), Vacuum Bagging |
| Shelf Life | 6–12 months (stored at -18°C) |
| Certifications | ISO 9001, ASTM D3039, NADCAP |
| Price Range | $50–$200/kg (bulk discounts available) |
Types of Carbon Fiber Prepreg
Not all prepreg is the same. Here are the main types you’ll work with:
1. Unidirectional Carbon Fiber Prepreg
All fibers run in one direction. This gives the highest tensile strength along that axis. It’s the top choice for wing spars, robotic arms, and wind turbine blades.
2. Woven Carbon Fiber Prepreg
Fibers run in two directions — over and under like a basket. The most common styles are 2×2 twill (that classic carbon look) and plain weave. Great for body panels, motorcycle fairings, and curved parts.
3. Non-Crimp Fabric (NCF) Prepreg
Fibers stay straight and flat — no waviness. This gives better mechanical properties than woven. Perfect for aerospace structures and structural automotive parts.
Want help choosing? Visit our guide on how to work with carbon fiber for a full breakdown.
Resin Systems Explained
The resin system is the glue that holds everything together. Here’s a quick guide:
| Resin Type | Cure Temp | Best For | Key Benefit |
|---|---|---|---|
| Epoxy Prepreg | 120°C–180°C | Aerospace, Automotive, Sports | Best overall performance |
| Bismaleimide (BMI) | 180°C–230°C | Spacecraft, Defense, Racing | Extreme heat resistance |
| Phenolic | 150°C–180°C | Aircraft interiors, Rail | Fire and smoke resistance |
Epoxy prepreg is the most popular. Leading global manufacturers such as Toray Industries, Hexcel Corporation, Solvay, and Gurit produce high-performance prepreg systems.
How the Curing Process Works
Curing is how liquid resin turns solid. It’s like baking — heat and pressure transform raw prepreg into a hard, strong part.
Here are the three main methods:
🔥 Autoclave Curing
- Uses high heat + high pressure inside a large oven-like machine
- Produces the highest quality parts with lowest void content
- Used by Boeing, Airbus, Lockheed Martin, and NASA
- Best for aerospace-grade carbon fiber prepreg components
🧪 Out-of-Autoclave (OoA)
- Uses vacuum bags + oven — no pressure vessel needed
- Lower cost than autoclave
- Great for prototyping and medium-volume production
- Used widely in drone components and sporting goods
🛍️ Vacuum Bagging
- Simplest and most affordable method
- Works well for marine applications, motorsports parts, and architectural composites
- Popular with small custom composite shops
Carbon Fiber Prepreg Properties
Let’s talk numbers. Here’s why engineers and designers love this material:
- Tensile strength: Up to 700 ksi — stronger than steel at a fraction of the weight
- Flexural strength: Excellent — resists bending under heavy loads
- Compression strength: High — perfect for load-bearing structures
- Shear strength: Reliable — holds layers together under stress
- Fatigue resistance: Outlasts metals in repeated stress cycles
- Impact resistance: Tough enough for Formula 1 crash structures
- Corrosion resistance: Won’t rust — ideal for marine and chemical environments
- Electrical conductivity: Conducts electricity — useful in EMI shielding
- Thermal expansion (CTE): Near-zero — critical for satellite structures
- UV resistance: Stable in sunlight with proper finish
- Fire resistance: Phenolic prepreg meets strict aviation fire codes
- Moisture absorption: Low — stays strong in humid conditions
Where Is Carbon Fiber Prepreg Used?
This material shows up everywhere. Here’s a look at the most common industries:
✈️ Aerospace
Boeing 787 Dreamliner uses prepreg for over 50% of its structure. Airbus A350 fuselage panels are made with prepreg carbon fiber. Lockheed Martin, Northrop Grumman, and General Dynamics all rely on it for military aircraft.
- Wing skins and spars
- Fuselage panels
- Interior floor beams
- Engine nacelles
🏎️ Automotive
Lamborghini, BMW (the BMW i3 chassis), and Tesla use prepreg for lightweight body panels and structural parts. Visit our carbon fiber car page to see real-world examples.
- Chassis and monocoques
- Hood and roof panels
- Aerodynamic splitters and wings
- Interior trims
🏍️ Motorsports & Motorcycles
Formula 1 teams like McLaren and Red Bull Racing build entire chassis from prepreg. Check out our carbon fiber motorcycle parts for two-wheel performance upgrades.
- Fairings and body panels
- Swing arms
- Crash protection structures
🚀 Space & Defense
SpaceX uses carbon fiber composites in rocket bodies. NASA — including missions like the Perseverance Rover and the Red Bull Stratos capsule — relies on certified prepreg materials.
🏋️ Sports & Recreation
- Bicycle frames (road, mountain, and triathlon bikes)
- Rowing oars and paddles
- Golf club shafts
- Tennis rackets
- Hockey sticks
🌬️ Energy
- Wind turbine blades — lightweight but strong enough for decades of use
- Solar panel frames
- Hydrogen storage tanks
🦾 Industrial & Medical
- Robotic arms — low inertia for fast, precise movement
- Medical prosthetics — lightweight and strong
- Dassault Systèmes and ANSYS even simulate prepreg composites digitally before manufacturing
Custom Carbon Fiber Prepreg Options
Need something specific? We offer full custom carbon fiber solutions tailored to your project.
Here’s what you can customize:
| Option | Range |
|---|---|
| Fiber grade | T700, T800, M55J, IM7, AS4, or custom |
| Resin content | 30%–40% (standard: 35% ± 2%) |
| Areal weight | 125–300 gsm |
| Ply thickness | 0.1–0.5 mm |
| Roll width | 300mm–1500mm |
| Pre-cut shapes | Yes — CNC cutting available |
| Hybrid composites | Carbon + Kevlar, Carbon + Glass |
| Sandwich panels | Carbon prepreg + honeycomb core |
Our custom composite factory handles everything from small prototype runs to large OEM orders.
Carbon Fiber Prepreg Price
The price of carbon fiber prepreg depends on fiber grade, resin system, and order volume.
Typical price range:
- Standard grade (T700): $50–$80/kg
- High-performance grade (T800 / IM7): $80–$150/kg
- Aerospace-grade prepreg: $120–$200/kg
💡 Bulk orders and long-term contracts can receive better pricing.
👉 Contact us today for a fast and accurate quotation.
Storage & Handling Tips
Prepreg is time-sensitive. Follow these simple rules:
- ❄️ Store at -18°C to preserve resin chemistry
- 📅 Use within 6–12 months of manufacture date
- 🧤 Handle with clean gloves — oils from skin affect tack
- ✂️ Cut with sharp scissors or CNC knife for clean edges
- ♻️ Warm to room temperature before opening — prevents condensation
- 📦 Reseal rolls in airtight bags after use
Out-time (time at room temperature) matters too. Most epoxy prepregs have a tack life of 10–30 days at room temperature. Plan your carbon fiber prepreg layup schedule carefully.
Quality, Certifications & Testing
We take quality seriously. Every batch goes through:
- ASTM D3039 tensile testing
- Void content and porosity checks
- Resin content verification
- Fiber volume fraction measurement
- Thermal analysis (DSC testing)
Our materials meet standards set by ASTM International, ISO, and NADCAP. We work with aerospace primes and have been audited by SAMPE and ACMA (American Composites Manufacturers Association) members.
Research institutions like MIT, University of Delaware, Oak Ridge National Laboratory, Fraunhofer Institute, and the National Composites Centre (UK) have all studied prepreg composites extensively — and the data backs up every claim we make.
Why Choose Our Carbon Fiber Prepreg?
Simple. Here’s the short version:
✅ Aerospace-grade quality at competitive prices ✅ $50–$200/kg with bulk order discounts ✅ Certified to ISO 9001, ASTM, NADCAP ✅ Trusted by industries from Formula 1 to Aerospace ✅ Custom sizes, grades, and resin systems available ✅ Fast lead times — standard stock ships quickly ✅ Dedicated technical support from our composite engineers
Buy Carbon Fiber Prepreg – What You Need to Know
When sourcing prepreg materials, most buyers care about:
- Price per kg
- Minimum order quantity (MOQ)
- Lead time
- Certification (ISO, ASTM, aerospace grade)
- Customization options
We support all of the above — from small trial orders to large OEM supply contracts.
Why Choose a China Carbon Fiber Prepreg Manufacturer?
Compared to European or US suppliers, Chinese manufacturers offer:
- Lower material cost (20–40% savings)
- Flexible MOQ for small batches
- Faster response and customization
- Strong OEM/ODM capabilities
We combine cost advantages with strict quality control to support global OEM and custom composite projects.
We have supplied prepreg materials and composite parts to clients in aerospace, automotive, and industrial sectors across Europe and North America.
FAQ
What is the shelf life of carbon fiber prepreg?
Typically 6–12 months at -18°C.
Can I buy small quantities?
Yes, we support low MOQ for prototyping.
Do you provide custom prepreg?
Yes — fiber type, resin system, and size can all be customized.
What is your MOQ?
Our MOQ is flexible. Small quantities are available for prototyping and sample orders.
What is the lead time?
Sample orders usually take 1–2 weeks, while bulk production typically takes 2–4 weeks depending on specifications and order volume.
Can you prioritize urgent projects?
Yes, we can prioritize urgent projects depending on production capacity and material availability.
Request a Quote for Carbon Fiber Prepreg
To receive an accurate quotation, please send us:
- Required fiber type or grade
- Resin system
- Fabric style
- Areal weight or thickness
- Roll width or sheet size
- Estimated order quantity
- End-use application
Our engineering team will review your requirements and reply with a suitable material recommendation and quotation.
👉 Request a Custom Quote Today 👉 Browse Our Full Composite Product Range
Data references: Toray Industries, Hexcel Corporation, Solvay/Cytec Industries, ASTM International, SAMPE, JEC World publications.
Carbon Fiber Autoclave
Our factory runs 100+ hot pressure autoclaves, using aluminum molds and vacuum induction to shape carbon fiber with precision. High heat and pressure enhance strength, stability, and flawless quality.
Carbon Fiber Engineering Technology Research Center
Our Carbon Fiber Research Center drives innovation in new energy, intelligence, and lightweight design, using advanced composites and Krauss Maffei FiberForm to create cutting-edge, customer-focused solutions.
Frequently Asked Question
Here are the answers to the frequently asked questions from the experienced carbon fiber products factory
We produce a wide range of carbon fiber components, including automotive parts, motorcycle parts, aerospace components, marine accessories, sports equipment, and industrial applications.
We primarily use high-quality prepreg carbon fiber and large-tow carbon fiber reinforced high-performance composites to ensure strength, durability, and lightweight characteristics.
Yes, our products are coated with UV-protective finishes to ensure long-lasting durability and maintain their polished appearance.
Yes, our facilities and equipment are capable of producing large-size carbon fiber components while maintaining precision and quality.
What are the benefits of using carbon fiber products?
Carbon fiber offers exceptional strength-to-weight ratio, corrosion resistance, stiffness, thermal stability, and a sleek, modern appearance.
We cater to automotive, motorcycle, aerospace, marine, medical, sports, and industrial sectors with a focus on lightweight and high-performance carbon fiber components.
Yes, we provide custom carbon fiber solutions tailored to your specifications, including unique designs, sizes, and patterns.
We utilize advanced technologies such as autoclave molding, hot pressing, and vacuum bagging, ensuring precision, stability, and quality in every product. wonders with the Hello Elementor Theme, we’re trying to make sure that it works great with all the major themes as well.
We use aluminum and P20 steel molds, designed for durability and high accuracy, to create complex and precise carbon fiber components.
Our products undergo rigorous quality control checks, including dimensional accuracy, material integrity, and performance testing, to meet industry standards.