100% polyimide (PI) spunlace felt is a high-performance nonwoven material manufactured from high-performance polyimide staple fibers through processes such as opening, carding, high-pressure hydro-entanglement, dewatering, and heat setting.
Polyimide belongs to a class of high-performance polymer materials; due to the presence of imide rings in its molecular structure, it exhibits excellent heat resistance and stability, making it a key representative of high-temperature resistant polymers.
The hydro-entanglement process utilizes high-pressure, fine water jets to impact the fiber web, causing the fibers to intertwine and form a fabric-like structure. consequently, the process eliminates the need for large amounts of chemical binders, resulting in a material with superior softness and uniformity.
Properties: Excellent high-temperature resistance Long-term service temperature typically reaches 220–260°C Good flame retardancy Chemical corrosion resistance Good mechanical properties, high strength, and superior wear resistance Excellent electrical insulation properties Strong resistance to aging, radiation, and oxidation
Applications: Aerospace: Aerospace thermal protection layers, spacecraft thermal insulation and protective materials New energy: Power battery thermal management materials, thermal insulation for energy storage equipment, fuel cell auxiliary materials Electronics and electrical: Motor insulation materials, battery thermal insulation layers Specialized protection: Firefighting protective materials, protective gear for high-temperature operations High-temperature filtration: Industrial dust filtration media, flue gas purification filters, high-temperature dust collection systems Industrial thermal insulation: Thermal insulation layers for high-temperature equipment, thermal protection gaskets, industrial thermal insulation linings
Property
Test Method
Value
Basis Weight
ISO 9073-1
70 gsm (±10 g)
Thickness
ISO 9073-2
0.5 mm (±0.1 mm)
Width
Standard
1500 mm (±10 mm)
Fiber Specification
—
1.7D
MD Tensile Strength
ISO 9073-3
190 N
CD Tensile Strength
ISO 9073-3
244 N
Flammability
UL94
V-0
We Customize Polyimide Spunlace Felt to Fit Your Application
At SHENGHE, we understand that every project has unique performance and processing requirements. That's why we offer fully customized 100% Polyimide (PI) Spunlace Felt solutions to meet your exact specifications.
Whether you're developing EV battery thermal insulation, industrial thermal barriers, or high-temperature protection systems, our engineering team works closely with you to deliver the right Polyimide Spunlace Felt for your application.
We can customize:
Basis Weight，Thickness，Width，Roll Length: Customized to your production needs Fiber Specification: Available upon request Color: Natural golden yellow or customized options Surface Structure: Optimized for different applications Lamination: PET film, PI film, aluminum foil, or other composite materials Adhesive Backing: Single-sided or double-sided adhesive solutions Die-Cutting & Converting: Custom shapes and finished components Packaging: Tailored export packaging for global delivery
Every Polyimide Felt we manufacture is produced under strict quality control to ensure consistent performance, dimensional stability, and reliable thermal protection.
From prototype development to large-volume production, SHENGHE is committed to providing high-performance Polyimide Spunlace Felt solutions that help our customers improve product safety, reliability, and manufacturing efficiency.
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