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Fiberglass Roving Yarn | High-Strength Composite Reinforcement For Diverse Industries
Product Attributes
Attribute
Value
Material
Fiberglass
Fiber Type
E-Glass
Thickness
0.3-0.5mm
Moisture Content
≤0.2%
Chopped Length
50mm
Weight
300-900g/m2
Product Introduction
Fiberglass Roving Yarn is a primary reinforcement material in composite manufacturing, produced by aligning and twisting continuous glass filaments into strands (rovings). Designed for high tensile strength, corrosion resistance, and cost-efficiency, it serves as the "skeleton" in composites, enhancing mechanical performance while reducing material weight.
Superior Strength: Tensile strength up to 3,000 MPa (equivalent to steel at 1/5 the weight).
Thermal Stability: Withstands temperatures from -60°C to 500°C (short-term: 600°C).
Chemical Resistance: Inert to acids, alkalis, and solvents (except hydrofluoric acid).
Versatility: Compatible with epoxy, polyester, vinyl ester, and thermoplastic resins.
Applications: Wind turbine blades, automotive body panels, marine hulls, construction reinforcement, and industrial piping.
Manufacturing Process
Raw Material Melting: Silica sand, limestone, and boron oxide are melted at 1,500-1,600°C in a refractory furnace to form molten glass.
Fiber Drawing: Molten glass is extruded through platinum-rhodium bushings (nozzles) to form continuous filaments (diameter: 5-25 µm).
Twisting & Roving Formation: Filaments are gathered into strands (200-4,800 tex) and twisted (0-10 turns/meter) using high-speed roving machines to improve cohesion.
Coating (Sizing): A protective coating (e.g., silane or acrylic) is applied to enhance resin adhesion and prevent fiber friction.
Winding & Packaging: Rovings are wound onto cardboard tubes or plastic spools (diameters: 200-600 mm) for easy handling.
Quality Control: ISO 9001-certified testing for tensile strength, linear density, and resin compatibility.
Usage Precautions
Handling: Avoid sharp tools or excessive bending during cutting to prevent filament breakage; wear gloves to protect against splinters.
Resin Compatibility: Match roving type (e.g., E-glass for general use, C-glass for chemical resistance) with resin (e.g., polyester for cost-sensitive projects, epoxy for high-performance applications).
Processing Temperature: For thermoset resins, cure at 80-150°C (avoid exceeding 200°C for standard E-glass). For thermoplastics, ensure melt temperatures >250°C.
Storage: Store in dry, ventilated areas (humidity <60%) to prevent moisture absorption; avoid prolonged UV exposure to avoid coating degradation.
Layup: Align rovings parallel to load directions in composite layups to maximize strength.
Application: Wind turbine blades (primary reinforcement for spanwise and chordwise strength).
Case:
Vestas V150 turbine blades use E-glass rovings to reduce blade weight by 20% while maintaining 20+ year lifespan.
B. Automotive
Application: Lightweight body panels (e.g., hoods, doors) and interior components (e.g., dashboards).
Case:
BMW i3 uses fiberglass rovings in its carbon fiber-reinforced plastic (CFRP) passenger cell for 30% weight reduction.
C. Marine
Application: Boat hulls, decks, and masts (corrosion-resistant alternative to steel/aluminum).
Case:
Benetti superyachts employ C-glass rovings in hull laminates to withstand saltwater exposure for 15+ years.
D. Construction
Application: Reinforced concrete (prestressed beams, bridge decks) and FRP rebar (corrosion-proof alternatives to steel).
Case:
The Golden Gate Bridge retrofit uses S-glass rovings in FRP rebar to extend service life by 50 years.
E. Industrial Piping
Application: Corrosion-resistant pipes and tanks (chemical processing, wastewater treatment).
Case:
Dow Chemical's chemical storage tanks use E-glass roving-reinforced polyester for 25+ years of leak-free service.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2008
Total Annual:
40000000-60000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Qingdao Wanguo Sanchuan Fiber Technology Co., Ltd.
Advanced Composite Solutions Engineered for Global Excellence
Founded in 2008 and headquartered in Qingdao, China, we specialize in high-performance fiber composites for demanding industrial applications. Leveraging DNV-GL certified manufacturing a...
Qingdao Wanguo Sanchuan Fiber Technology Co., Ltd.
Advanced Composite Solutions Engineered for Global Excellence
Founded in 2008 and headquartered in Qingdao, China, we specialize in high-performance fiber composites for demanding industrial applications. Leveraging DNV-GL certified manufacturing a...
