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Explore Our Carbon Fiber Roll Fabrics

Advanced fiber composite materials engineered for precision, durability, and performance across demanding industries

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Sized for epoxy matrices · Chemical compatibility

Epoxy Compatible Carbon Fiber Cloth

Formulated sizing system designed to maximize interfacial bond strength with epoxy resin systems
98% Interfacial shear retention after 1000h at 80°C

Epoxy Compatible Carbon Fiber Cloth features a proprietary sizing formulation that is chemically matched to epoxy resin systems, ensuring optimal wet-out, adhesion, and stress transfer at the fiber-matrix interface. The sizing agent is applied during the final manufacturing stage and is characterized by a uniform distribution of polar functional groups that react with epoxy hardeners during cure. This cloth is available in a range of tow sizes (3k, 6k, 12k) and weave patterns, with areal weights from 160 to 800 g/m². The sizing is designed to maintain stability during storage while promoting rapid dissolution into the epoxy matrix during infusion, prepreg consolidation, or hand layup processes.

Epoxy Compatibility Metrics

Interfacial shear strength (IFSS) ≥ 65 MPa (microbond test)
Wet-out contact angle < 25° (epoxy resin at 25°C)
Sizing solubility in epoxy Complete within 5 min at 40°C
Void content (cured laminate) ≤ 1.2% (ASTM D2734)
Glass transition retention ≥ 95% of neat resin Tg
Aging resistance (80°C / 1000h) IFSS retention ≥ 98%

Recommended Epoxy Systems

Resin type Viscosity (cP) Cure schedule Application
Infusion epoxy (low-viscosity) 80 – 200 24h @ 25°C + 4h @ 80°C VARTM, vacuum infusion
Prepreg epoxy (tackified) NA (solid at 25°C) 120°C / 1h or 180°C / 30min Autoclave, press molding
Hand layup epoxy (medium) 400 – 800 24h @ 25°C + 2h @ 60°C Tooling, repair, prototyping
Fast-cure epoxy 150 – 350 2h @ 80°C High-volume production

Sizing & Fabric Specifications

Sizing chemistry Bisphenol-A/epichlorohydrin based (modified)
Sizing content 1.2% – 1.8% by weight
Decomposition temperature ≥ 300°C (TGA, air)
Storage stability 24 months at 20°C / ≤ 55% RH
Tow options 3k, 6k, 12k (custom available)
Areal weight range 160 – 800 g/m²
Weave patterns Plain, twill, satin, unidirectional
Roll dimensions Width: 1000/1270/1500 mm; Length: 25–100 m

Key Advantages for Epoxy Processing

  • Eliminates sizing incompatibility issues common with general-purpose carbon cloths
  • Reduces void formation due to complete sizing dissolution during resin infiltration
  • Provides consistent laminate mechanical properties across batch-to-batch production
  • Compatible with both room-temperature and elevated-temperature epoxy systems
  • Minimizes fiber bridging and dry spots in thick laminates

Technical Notes

Sizing compatibility test Perform a simple wet-out test by placing a drop of epoxy resin on the cloth; complete wet-out within 60 seconds indicates proper compatibility.
Pre-cure drying For moisture-sensitive epoxy systems, dry the cloth at 60°C for 2 hours prior to layup to remove adsorbed moisture.
Post-cure optimization A post-cure cycle of 4 hours at 150°C is recommended for maximum Tg and interlaminar fracture toughness.
Thickness build-up Cured ply thickness ranges from 0.20 mm (160 g/m²) to 1.10 mm (800 g/m²) depending on compaction pressure and resin content.
ASTM D2344 (ILSS) ASTM D6484 (Open-hole compression) ISO 15024 (Mode I fracture) EN 2564 (Sizing content)

Sizing formulation and fabric construction are validated against these standards to ensure reproducible performance in epoxy-based composite structures.

✦ Est. 2018 · Jiangyin
Dongli New Materials
⬡ High-performance Fiber Composites · ◈ Precision Engineering · ◉ Global Reach
32,000 ▣ Factory Area (㎡)
7 ◆ Years Experience
10 ◼ Production Lines
24 ◉ Technical Personnel
⬡ Aerospace ◈ Automotive ◉ Sports Equipment ✦ R&D Innovation ◆ Global Partner ◼ Sustainability

◉ Founded 2018

▣ Jiangyin Dongli New Materials Technology Co., Ltd. focuses on the comprehensive development and manufacturing of high-performance fiber composite materials. We are China Epoxy Compatible Carbon Fiber Cloth Manufacturers and Wholesale Epoxy Compatible Carbon Fiber Cloth Suppliers. Operating from a 32,000‑square‑meter industrial complex featuring precision‑controlled environments, including climate‑regulated workshops and 100,000‑grade purification zones.

◆ We integrate material innovation with engineering expertise to serve aerospace, automotive, and sports equipment sectors.

◈ One‑Stop Factory

◉ With full process control, we integrate material innovation with engineering expertise. Our capabilities include R&D and production of high‑performance fiber fabrics through weaving and prepreg processes, as well as composite products utilizing autoclave, RTM, RMCP, PCM, WCM, and spraying technologies.

⬡ Aerospace ◈ Automotive ◉ Sports ✦ R&D

◈ Global Vision & Breakthrough Solutions

✦ Dongli New Materials aims to expand its global influence, enhance its research and development capabilities, and continue to provide breakthrough solutions for global partners.

◉ In the years to come, Dongli will continue to make significant contributions to the industry through relentless innovation and collaboration. We are committed to developing cutting‑edge technologies that not only enhance product performance but also promote social progress. With the continuous evolution of the industry, we always insist on creating solutions with far‑reaching impact and sustainability, ensuring that we become a trusted partner and helping enterprises fully realize their potential in the ever‑changing global environment.

◉ Autoclave ◈ RTM ⬡ RMCP ✦ PCM ◆ WCM ▣ Spraying ◼ Weaving ◉ Prepreg
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