FAQ

A：Needle-punched felt is a type of nonwoven fabric that is produced without traditional weaving or knitting. Instead, it is made using specialized mechanical processes. The fibers are first opened and carded to ensure uniform alignment, then layered to form a web. Through needle punching—a process where barbed needles repeatedly pierce the fiber layers—the fibers become entangled and compacted, forming a fabric with strength, flexibility, and breathability. This material is widely used in applications such as filtration, sound insulation, thermal insulation, and as a base material for composite products.

A：Recycled Carbon Fiber Paper:

•  Produced using a wet-laid papermaking process; composed of 80% recycled carbon fiber and 20% additives.
•  Fiber length: 0.6–1 mm
•  Basis weight: 70 g/m², width: 1 meter, with a basis weight tolerance of ±4%
•  Suitable processing methods:
  • 1.Thermoset processes: such as resin impregnation (prepreg), SMC, and RTM
  • 2.Thermoplastic processes: such as sandwich panel hot pressing

Recycled Carbon Fiber Nonwoven Fabric:

•  Produced using mechanical needle punching; the recycled carbon fiber content can be customized, up to 100%.
•  Fiber length: ≥ 3 cm (95% or more)
•  Customizable basis weight: 100–400 g/m², width: 1–2 meters, with a basis weight tolerance of ±10%
•  Suitable processing methods:
  • 1.Thermoset processes: resin impregnation (prepreg), SMC, RTM
  • 2.Thermoplastic processes: can be blended with thermoplastic fibers and directly molded by hot pressing

A：Needle-punched felt can be made from a wide range of synthetic and natural fibers, selected based on the intended application:

• Synthetic fibers: Carbon fiber, glass fiber, PET (polyethylene terephthalate), PP (polypropylene), PA6 (nylon 6), TPU (thermoplastic polyurethane), etc.
• Natural fibers: Animal fibers (e.g., wool), plant fibers (e.g., flax).

As for specifications, fiber lengths typically range from 51 mm to 100 mm, and fiber fineness usually falls between 3D and 21D. Specific requirements can be adjusted based on the material properties and end-use needs to ensure optimal performance in terms of strength, breathability, and durability.

A：Needle-punched felt can be tailored in various ways to meet specific performance and application requirements. Key adjustable specifications include:

• Material selection: A wide range of synthetic fibers (e.g., carbon fiber, glass fiber, PET, PP, PA6, TPU) and natural fibers (e.g., wool, flax) can be chosen based on desired properties such as strength, heat resistance, and abrasion resistance.
• Basis weight (g/m²): Typically ranges from 100 to 500 g/m² and can be adjusted depending on strength and durability requirements.
• Thickness and density: These affect the felt’s flexibility, breathability, and mechanical strength. Thickness and compaction level can be adjusted to suit specific applications.

This flexibility in customization makes needle-punched felt suitable for a wide range of uses, including filtration media, sound and thermal insulation, and as a substrate for composite materials.

A：Thanks to its durability, breathability, sound absorption, and thermal insulation properties, needle-punched felt is widely used across various industries, including:

• Automotive industry: Used for soundproofing mats, battery covers, and interior components to enhance cabin quietness and provide additional protection.
• Construction materials: Serves as a sound-absorbing and insulating layer, effectively reducing noise transmission and improving thermal insulation in buildings.
• Industrial applications: Suitable for fire blankets and thermal insulation materials, especially in high-temperature or fire-resistant environments.
• Sporting goods: Applied in insoles, rackets, golf clubs, and more to enhance comfort, durability, and overall equipment performance.

The material composition and specifications of needle-punched felt can be customized to meet the unique demands of each application, ensuring optimal functionality in every field.

A：Yes, we provide complete documentation, including the Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and relevant test reports. For specific applications or performance requirements, we can also support customized testing and arrange third-party certification to ensure the material meets your technical standards and industry regulations.

A：Once the order is confirmed, the general lead times are as follows. For custom specifications, large-volume orders, or urgent requests, please contact us to confirm the earliest possible delivery date.

• Recycled carbon fiber pellets: 6–8 weeks
• Recycled carbon fiber nonwoven fabric: 4–6 weeks
• Recycled carbon fiber paper: 6–8 weeks (depending on order quantity)
• Recycled carbon fiber prepreg: 6–8 weeks (depending on order quantity and resin type)

A：Our standard MOQs are as follows:

• Recycled carbon fiber pellets: 100 kg
• Recycled carbon fiber nonwoven fabric: 100 meters
• Recycled carbon fiber paper: 100 meters
• Recycled carbon fiber prepreg: 100 meters

For special specifications or large-volume orders, feel free to contact us to discuss further.

A：Yes, expanding internationally is part of our mid- to long-term strategic roadmap. Thermolysis is committed to global deployment based on market demand and partnership opportunities, with the goal of bringing Taiwan’s low-carbon technologies to the world and expanding our green impact globally.