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Fiberglass Continuous Filament Mat (CFM) is a high-performance reinforcing material engineered for composite manufacturing, composed of continuous glass fiber filaments randomly looped and layered. These interlocked layers are bonded using a thermoset binder with precise content control, while the glass fibers are pre-treated with a silane coupling agent to ensure superior compatibility with various resin systems including Unsaturated Polyester (UP), Vinyl Ester (VE), Epoxy (EP), and Polyurethane (PU) resins. With exceptional flexibility in production, Fiberglass Continuous Filament Mat can be customized in terms of areal weight, width, and order quantity to meet diverse industrial demands.

What are the key features of fiberglass continuous filament mat?

Continuous Fiber Structure: Made of unbroken glass filaments, ensuring consistent mechanical strength and avoiding performance weak points caused by fiber cutting.

Optimized Binder System: Thermoset binders with adjustable content (1%-8%) balance mat rigidity and conformability, while ensuring complete compatibility with resins during curing.

Silane Coupling Agent Treatment: Enhances fiber-resin interfacial bonding, improving the mechanical properties and durability of finished composites by 20%-30%.

Uniform Random Fiber Orientation: Delivers balanced transverse and random-direction strength, eliminating directional weaknesses common in woven fabrics.

Controlled Resin Flow & Wet-Out: Porous fiber network enables fast resin penetration (wet-through time ≤45 seconds for standard grades) and complete wet-out, reducing voids in composites.

Stable Dimensional Performance: Low shrinkage rate (<0.3%) during molding, ensuring finished products meet tight dimensional tolerances.

Wide Process Adaptability: Compatible with pultrusion, compression molding, infusion, RTM, and PU foaming processes, supporting diverse manufacturing needs.

How many types of fiberglass continuous filament mat are there?

We mainly supply two applications of Continuous Filament Mat (CFM): one for pultrusion and another for compressing molding or infusion. Both types offer end-users with different controls over rigidity, conformability, handling, wet-out and a range of tensile strengths. Our CFM can also be applied in polyurethane foaming process.

Continuous Filament Mat (CFM) for Pultrusion

The CFM95 Series products are ideally suited for manufacture of profiles by pultrusion processes. This mat is characterized by fast wet-through, good wet-out, good conformability, good surface smoothness and high tensile strength.

Technical Parameters of continuous filament mat CFM95 series

Continuous Filament Mat (CFM) for Compression Molding and Infusion

The CFM98 Series products are ideally suited for infusion, RTM, S-RIM and compression processes. The CFM has outstanding flow characteristics and can be used for reinforcement and/or for a resin flow media between layers of fabric reinforcement.

Technical Parameters of continuous filament mat CFM98 series

What are the advantages and benefits of fiberglass continuous filament mat?

CFM offers comprehensive advantages over traditional reinforcing materials (chopped strand mats, woven fabrics), delivering tangible value to composite manufacturers and end-users:

4.1 General Advantages (All Series)

Superior Mechanical Performance: Continuous fiber structure and random orientation provide balanced tensile, flexural, and impact strength, improving composite durability by 20%-30% compared to chopped strand mats.

Enhanced Fiber-Resin Bonding: Silane coupling agent treatment ensures strong interfacial adhesion, reducing composite voids to <1% and preventing fiber detachment under stress.

Optimized Processing Efficiency: Fast resin wet-out and controlled flow reduce molding cycle time by 15%-25%, while easy cutting and handling lower labor costs.

Cost-Effective Reinforcement: Lower material waste (<2% vs. 5%-7% for woven fabrics) and reduced post-processing (due to smooth surfaces) minimize total production costs.

Wide Resin Compatibility: Compatible with UP, VE, EP, and PU resins, eliminating the need for process-specific materials and simplifying inventory management.

4.2 Series-Specific Advantages

CFM95 Series (Pultrusion): High transverse strength ensures pultruded profiles resist bending and torsion; good surface smoothness reduces painting/finishing requirements.

CFM98 Series (Molding/Infusion): Excellent resin flow property enables uniform resin distribution in large parts; high wash resistance prevents fiber displacement during processing.

CFM981 Series (PU Foaming): Ultra-low binder content avoids foam degradation; uniform dispersion enhances foam structural stability without compromising thermal insulation.

CFM885 Series (Surface Reinforcement): Veil layer improves composite surface aesthetics by hiding underlying fiber patterns, reducing rework and improving product quality.

What applications is fiberglass continuous filament mat used for?

Leveraging its balanced mechanical properties and process adaptability, CFM serves as a critical reinforcing material across multiple industries, supporting the production of high-performance composite components:

Construction & Infrastructure: FRP rebars, pultruded profiles for bridges and buildings, corrosion-resistant gratings, and pipe systems. CFM enhances durability and extends service life in harsh environments.

Transportation: Automotive lightweight components, marine hulls/decks, railway carriage parts, and aircraft interior panels. Reduces weight by 30%-40% compared to metal while maintaining structural integrity.

Energy: Wind turbine components, solar panel frames, and oil/gas pipeline coatings. CFM95 Series provides the required strength for wind energy applications, while CFM981 Series supports cryogenic energy storage.

Chemical & Petrochemical: Corrosion-resistant tanks, chemical process pipes, and valve bodies. The silane treatment ensures compatibility with VE/EP resins for superior chemical resistance.

Electrical & Electronics: High-voltage insulators, cable trays, and transformer housings. CFM’s excellent electrical insulation (volume resistivity ≥10¹³ Ω·cm) meets strict industry standards.

How to store and handle fiberglass continuous filament mat? 

It is suggested to put fiberglass continuous filament mat properly to keep its properties and performance.

Store in a cool, dry, and well-ventilated warehouse, avoiding direct sunlight, rain, or dampness.

Maintain storage temperature between 15℃ and 35℃, and relative humidity at 35%-65% to prevent moisture absorption and binder degradation.

Pre-condition the product by moving it to the production site 24 hours in advance, ensuring the mat reaches ambient temperature for optimal performance during processing.

Keep the original packaging intact until use. After opening, seal any unused portions in moisture-proof packaging (e.g., PE film) to avoid fiber contamination and moisture absorption.

Stack rolls horizontally on flat pallets, with maximum stack height not exceeding 1.0 meter to prevent compression deformation of the bottom layers.

Handle with clean gloves to avoid oil or dirt transfer; use sharp, clean cutting tools to ensure neat edges and prevent fiber fraying.

Avoid contact with strong acids, alkalis, or organic solvents that may damage the binder or fiber surface treatment.

FAQ

Question 1: What is the regular width of fiberglass continuous filament mat? Can you provide customized CFM with a width exceeding 2400mm?

A: Yes. Our standard width is 185cm. Our production line can manufacture CFM with a maximum width of 3000mm. For widths over 2400mm, lead time is extended by 3-5 working days to adjust the production equipment. Please provide detailed width and roll length requirements for a customized quote.

Question 2: What type of thermoset binder is used in continuous filament mat, and how does its content affect product performance?

A: We use phenol-formaldehyde or acrylic thermoset binders, selected based on the CFM series. Higher binder content (6%-8%, e.g., CFM956) increases mat rigidity and tensile strength, suitable for load-bearing pultruded parts; lower content (1%-3%, e.g., CFM981) enhances flexibility and resin compatibility, ideal for PU foaming and infusion processes.

Question 3: How does the silane coupling agent improve CFM’s compatibility with resins?

A: The silane coupling agent has dual functional groups. one end bonds to the glass fiber surface (forming a chemical linkage), and the other end reacts with resin molecules. This bridges the inorganic fiber and organic resin, improving interfacial adhesion, reducing voids, and enhancing composite mechanical properties and water resistance.

Question 4: Can continuous filament mat be used with high-temperature curing resins (e.g., epoxy resins cured at 180℃)?

A: Standard CFM (CFM95/CFM98) can withstand curing temperatures up to 150℃. For 180℃ high-temperature curing, we offer a high-temperature resistant CFM variant with heat-stable binders and silane treatment, which maintains structural stability without binder decomposition. Please specify curing conditions when ordering.

Question 5: What is the difference between continuous filament mat (CFM) and chopped strand mat (CSM) in composite performance?

A: CFM’s continuous fibers provide 30%-50% higher tensile strength and better impact resistance than CSM (chopped fibers). CFM also offers more balanced transverse strength, while CSM has lower cost but higher fiber shedding and lower durability. CFM is preferred for structural components, while CSM suits non-load-bearing applications.

Question 6: How does continuous filament mat (CFM) perform in cryogenic environments (e.g., LNG carrier insulation)?

A: Our CFM981 Series is specifically designed for cryogenic use. Its ultra-low binder content (1%) avoids brittleness at low temperatures (-162℃ for LNG), and uniform fiber dispersion in PU foam enhances the insulation’s structural integrity, preventing foam cracking during temperature cycles.