Pre-oxidized silk felt is an innovative thermal insulation material created by integrating silica aerogel into pre-oxidized fiber through a specialized process. This cutting-edge material is soft, hydrophobic, breathable, fire-resistant, and easy to cut or install. Known for its exceptionally low thermal conductivity, pre-oxidized silk aerogel felt delivers insulation performance 3–5 times higher than traditional materials, making it a preferred solution for industries requiring high-efficiency heat protection.

With one of the lowest thermal conductivity levels among insulation materials, pre-oxidized silk felt provides excellent thermal resistance. Its aerogel-enhanced structure ensures reliable heat management in compact or high-temperature environments.
The material can effectively resist flame, block instant high heat, and prevent fire spread. It delays temperature rise, extends evacuation time, and enhances overall system safety in demanding applications.
Unlike bulky traditional insulation, this felt is thin, lightweight, and highly flexible. It can be easily cut and shaped on site, making installation faster and more efficient.
The material provides strong resistance to moisture, thermal shock, tearing, and long-term compression — ensuring long service life even in harsh operating environments.
Battery packs require reliable, thin thermal insulation. Pre-oxidized silk felt provides high-efficiency heat resistance within limited space, helping stabilize battery temperature and prevent thermal runaway.
The felt supports thermal protection in EV body structures, rail transit equipment, and safety components by preventing heat transfer and reducing fire risks.
Ideal for insulated electrical boxes, heating components, and machinery requiring stable thermal environments.
Its thin design and excellent flexibility make it suitable for compact pipes where traditional insulation cannot be applied.
Provides stable performance in both high-temperature and low-temperature environments.
Low thermal conductivity (3–5 times better than traditional insulation)
Thin and lightweight
Excellent thermal stability
Flexible, soft, shock-resistant
Hydrophobic and breathable
Non-combustible & fire-resistant
Low heat storage
Tear-resistant and durable
Pre-oxidized silk aerogel felt is quickly becoming the new standard for high-efficiency thermal insulation across modern industries such as new-energy vehicles, rail transit, electrical systems, and industrial infrastructure. Its unique combination of thermal performance, fire resistance, and installation convenience makes it a superior alternative to traditional materials.
If your business requires advanced insulation materials with proven performance and customizable specifications, feel free to contact us for samples, pricing, and technical consultation.
