Carbon Fiber Fabric – 4HS (Harness Satin) Weave
Premium 4 Harness Satin (4HS) Carbon Fiber Fabric for Superior Drapability, Resin Flow & Smooth Surface Finish
Carbon Fiber Fabric 4HS (4 Harness Satin) Weave is a high-performance woven reinforcement material designed for composite manufacturers who require excellent mold conformity, smooth laminate surface finish, and strong structural performance.
The 4HS weave pattern (also known as 4 Harness Satin weave) reduces fiber crimp compared to plain weave, improving load transfer and mechanical efficiency. It also offers better drapability and resin wet-out, making it ideal for vacuum infusion, prepreg, RTM, and high-quality cosmetic carbon fiber laminates.
4HS carbon fiber fabric is widely used in automotive, aerospace, marine, motorsport, sports equipment, and industrial composite structures, especially where parts include curves, contours, and complex geometry.
Key Performance Advantages
- Weave Type: 4 Harness Satin (4HS)
- Excellent Drapability for Curved & Complex Shapes
- Reduced Fiber Crimp for Improved Mechanical Performance
- Superior Resin Flow & Wet-Out (Infusion Friendly)
- Smooth Laminate Surface Finish
- Reduced Print-Through vs Plain Weave
- Balanced Bidirectional Reinforcement (0° / 90°)
- High Strength-to-Weight Ratio
- Stable Processing for Industrial Composite Production
- Electrically Conductive (EMI Shielding Capable)
4HS weave is often chosen when manufacturers want both structural performance + premium finish.
What is 4HS Weave in Carbon Fiber Fabric?
4HS (4 Harness Satin) is a satin weave where the carbon tow passes over multiple yarns before going under one, creating:
- A flatter fabric surface
- Improved flexibility compared to plain weave
- Lower fiber crimp
- Better resin flow
- Enhanced laminate finish quality
This structure makes 4HS fabric an excellent choice for high-quality laminates on curved molds.
Available Tow Sizes & Options
- 1K 4HS Carbon Fiber Fabric (fine cosmetic finish)
- 3K 4HS Carbon Fiber Fabric (most popular cosmetic + structural)
- 6K 4HS Carbon Fiber Fabric (structural, faster lay-up)
- 12K 4HS Carbon Fiber Fabric (heavy structural laminates)
Common Weights (GSM)
- 160 GSM / 200 GSM / 240 GSM
- 300 GSM / 400 GSM / 480 GSM
- Custom GSM available on request
Width & Roll Options
- Width: up to 1000–1500 mm
- Roll length: custom as per buyer requirement
Typical Technical Specifications
| Property | Typical Range |
| Product Type | Carbon Fiber Fabric |
| Weave Style | 4HS (4 Harness Satin) |
| Tow Size | 1K / 3K / 6K / 12K |
| Areal Weight | 80 – 900 GSM |
| Fiber Orientation | 0° / 90° (Bidirectional) |
| Color | Black |
| Resin Compatibility | Epoxy / Vinyl Ester / Polyester |
| Finish / Sizing | Epoxy compatible (custom available) |
Recommended Applications
Automotive & Motorsport
- Cosmetic carbon fiber panels
- Curved trims and visible carbon parts
- Lightweight structural reinforcement
Aerospace & UAV (Secondary Structures)
- Composite skins and panels
- Lightweight stiffeners
- UAV components
Marine & Boat Building
- Curved marine panels
- Hull and deck reinforcement
- Lightweight marine composites
Industrial & Tooling
- Composite tooling reinforcement
- Structural composite panels
- High-stiffness laminate layers
Processing Methods
- Hand Lay-Up
- Vacuum Bagging
- Vacuum Infusion
- RTM
- Compression Molding
- Prepreg Processing
The satin weave supports smooth resin distribution, helping reduce dry spots and improving laminate quality.
Quality & Export Supply
- Manufactured under ISO 9001 Quality System
- Consistent weave pattern & tow alignment
- RoHS & REACH compliant
- Available with TDS, COA & batch traceability
- Export packaging: moisture-proof roll packing + protective outer carton
Why Choose Our 4HS Carbon Fiber Fabric?
- Premium satin weave for excellent surface finish
- Better mold conformity for complex parts
- Strong structural performance with reduced crimp
- Reliable export quality for OEM & bulk buyers
- Fast production + worldwide shipping support
Frequently Asked Questions (FAQ’s)
6K/12K: best for structural and heavy laminates
Product Tags:
carbon fiber fabric 4HS weave, 4 harness satin carbon fiber fabric, 4HS carbon fiber cloth, satin weave carbon fiber fabric, vacuum infusion carbon fiber fabric