fiberglass cloth roll for composites
Laminate Engineering Fabric
This cloth roll is engineered specifically for composite manufacturing processes including hand lay-up, vacuum infusion, and prepreg applications. Manufactured from continuous E-glass filaments with a controlled weave architecture, it provides balanced mechanical properties with tensile strength exceeding 300 MPa and flexural modulus of 28 GPa. Available in areal weights from 160 g/m² to 600 g/m² and thicknesses spanning 0.15 mm to 0.65 mm, the cloth offers consistent resin uptake, excellent drapeability, and uniform fiber distribution. The fabric operates continuously from –60°C to 550°C and is compatible with epoxy, polyester, vinyl ester, and phenolic resin systems.
Composite Processing Advantages
- Optimized wet-out: Balanced weave density ensures rapid resin penetration with minimal void formation, producing consistent laminates with 55–60% fiber volume fraction.
- Superior drapeability: Low crimp angle allows conforming to complex mold geometries without wrinkling or bridging, reducing scrap and rework.
- Uniform thickness: Precision weaving delivers ±0.02 mm thickness tolerance, enabling reproducible laminate stack-ups across production runs.
- Resin compatibility: Sizing chemistry is formulated to bond with a wide range of thermoset and thermoplastic resin systems.
- Process versatility: Adaptable for hand lay-up, spray-up, vacuum bagging, resin transfer molding, and autoclave curing without process modifications.
Key Specifications
Composite Application Areas
Composite Fabrication Guidelines
Frequently Asked Questions
This cloth is compatible with all major resin systems including epoxy, polyester, vinyl ester, phenolic, and polyurethane. The sizing chemistry is optimized to provide strong interfacial bonding with epoxies (amine- and anhydride-cured), unsaturated polyesters, and vinyl esters. For best results, always match the resin system with the cloth's recommended sizing and consult the manufacturer's compatibility chart.
Ply count depends on the required laminate thickness, mechanical loads, and design factors. As a guideline, each 300 g/m² ply provides approximately 0.25–0.30 mm of cured laminate thickness (with 45% resin content). Use the formula: required plies = (design thickness × 1000) / (cloth thickness × (1 resin weight fraction)). Always perform structural calculations based on the specific application loads.
Yes. The cloth is suitable for prepreg production with epoxy, BMI, and phenolic resins. For prepreg applications, we recommend using a resin content of 35–40% by weight and impregnation temperatures of 80–100°C. The cloth provides good tack and drape properties in prepreg form, making it suitable for both hand lay-up and automated tape laying processes.
For production quantities, use automated cutting systems (CNC cutters, water jets, or laser cutters) for precision and reduced fraying. For small-scale work, use sharp rotary shears or electric shears. Always seal cut edges with heat or edge tape to prevent unraveling during handling and resin application.
High humidity (>75% RH) can cause moisture absorption, which may interfere with resin curing and reduce interfacial bonding. Store the cloth in a controlled environment (40–60% RH) and condition rolls at room temperature for 24 hours before use. If the cloth becomes damp, dry it at 40°C for 2 hours to restore handling properties.
