The felt consists of randomly distributed fibers that are stitched in a grid-like pattern, which creates a more stable mat with increased dimensional integrity during molding and curing processes. It is typically binder-free, meaning it does not contain any resins or binders that could interfere with the resin system during the lay-up process. This construction also allows for better resin flow, reduced air entrapment, and increased wet-out speed compared to traditional mats with binders.

Glass Fiber Stitched Felt is used extensively in composite applications where high strength, excellent conformability, and consistent wetting of resin are crucial. It is widely used for manufacturing composite parts in industries such as automotive, marine, construction, wind energy, and industrial components.

🧪 Typical Technical Data (TDS Style)

✅ Key Features and Benefits

• Binder-Free Construction
  
  Stitched felt does not contain any chemical binders, which significantly enhances resin flow and minimizes air voids during molding. This allows for better wet-out and ensures consistent laminate quality.

• Enhanced Mechanical Strength
  
  The stitching method provides superior tensile strength, resistance to shear forces, and dimensional stability, making it ideal for structural applications.

• Excellent Resin Compatibility
  
  It works seamlessly with a wide range of resin systems (polyester, vinyl ester, epoxy), making it versatile for vacuum infusion, RTM, hand lay-up, and spray-up processes.

• Superior Wetting and Conformability
  
  The open, non-woven structure allows for rapid resin penetration and adapts easily to complex mold geometries, making it particularly useful for custom or intricate part shapes.

• Reduced Processing Time
  
  The material’s ability to evenly distribute resin and fiber quickly during the molding process results in faster curing times, which improves production efficiency.

• Dimensional Integrity
  
  The grid-like structure created by the stitching ensures that the mat maintains its shape and size during manufacturing and curing, preventing shrinkage and deformation.

• Enhanced Durability
  
  The use of high-strength polyester yarn in the stitching enhances the overall structural integrity and long-term durability of the composite material.

🏭 Applications

• Automotive: Structural panels, load floors, engine components

• Marine: Hulls, decks, bulkheads, interior panels

• Construction: Composite beams, pipes, FRP panels, building facades

• Wind Energy: Blade components, nacelle housing, structural parts

• Industrial Equipment: Tanks, ducts, protective casings

• Electrical: Insulation for electrical panels, switchgear components

• Sanitary: Bathtubs, sinks, shower trays

• HVAC: Ductwork and insulation panels

📦 Packaging and Storage

• Roll Packaging: Rolled in polyethylene film or kraft paper for protection.

• Labeling: Roll specifications, lot number, and production date are clearly marked on each roll.

• Storage: Store in a dry, shaded environment at room temperature. Avoid exposure to moisture and UV light to prevent fiber degradation.

• Shelf Life: Recommended shelf life of 12 months when stored properly.

🏅 Compliance & Standards

• ASTM D578 – Glass fiber physical property testing

• ISO 2559 / ISO 2797 – Measurement of weight and thickness

• RoHS, REACH Compliant

• Fire-resistant versions available upon request

• ISO 9001 – Quality management systems compliant

🛠 Customization Options

• Weight and Thickness: Customizable based on specific strength or stiffness requirements.

• Fiberglass Types: Standard E-glass, AR-glass for corrosion resistance, or a combination with carbon or basalt fibers for specialized applications.

• Resin Compatibility: Suitable for epoxy, vinyl ester, and polyester resins, as well as phenolic resins in high-temperature applications.