With the rapid iteration of 5G communication, new energy storage, automotive electronics, semiconductor equipment, and aerospace industries, high-performance engineering films with high temperature resistance, high insulation, and chemical corrosion resistance have long relied on imports. This has resulted in long supply chain cycles and high procurement costs, making domestic substitution an urgent need for high-end manufacturing industries. Shanghai Harsom Advanced Materials, as a leading domestic manufacturer specializing in innovative and high-quality special films, focuses on the R&D, mass production, and customized services of PPS (polyphenylene sulfide ) films and PAEK (polyaryletherketone) series films. Breaking through overseas technological barriers, Harsom has achieved large-scale deployment of ultra-thin special films, providing domestic and overseas engineering clients with highly stable and cost-effective domestic film solutions.
Company Profile
Shanghai Hesheng New Materials , a subsidiary of Hesheng Industrial Group, is a key advanced materials industrialization platform of the group. It has jointly established a joint R&D laboratory with Shanghai Jiao Tong University, and has established a complete technology chain from formula modification, casting film formation, biaxial stretching and precision post-processing. It is one of the few high-tech enterprises in China that has mastered the industrial mass production capabilities of PPS and PAEK films .
The company has built specialized precision casting and biaxial stretching production lines, focusing on overcoming industry pain points such as easy breakage of ultra-thin films, large thickness tolerance, and unstable heat shrinkage. It has achieved stable mass production of 6-25μm ultra-thin PPS films, with film thickness tolerance controlled within ±0.5μm and heat shrinkage rate ≤0.5% at 200℃. The product performance is comparable to that of leading international imported brands, filling the gap in domestic mass production of ultra-thin PPS films.
The company has established a complete ISO quality management system, which controls the entire chain from raw material entry, production process inspection to finished product testing. It supports large-volume standardized orders and can also provide modified formulas, special sizes and surface treatment customization for scientific research institutions and equipment manufacturers. It serves the domestic electronics, new energy, rail transportation and industrial filtration industries, and completes export supply for overseas traders and EPC projects.
Core Product Matrix
1. PPS ( Polyphenylene Sulfide) Film
It features high temperature resistance, strong chemical corrosion resistance, low water absorption, and excellent electrical insulation properties. The main thicknesses are 6-12μm for ultra-thin models and 15-50μm for standard models.
Key features: Long-term operating temperature up to 200℃, resistant to acid and alkali solvents, excellent dimensional stability, stable dielectric properties, and not easily hydrolyzed or aged.
Typical applications: 5G high-frequency communication substrates, new energy battery insulating gaskets, automotive electronic insulating components, transformer motor insulation, Class F heat-resistant tapes, industrial release materials, precision die-cutting substrates, and electromagnetic shielding substrates.
2. PAEK polyaryletherketone series films (PEEK/PEKK)
Higher-grade special engineering films have higher temperature resistance, outstanding mechanical strength and creep resistance, and are designed for high-end applications in extreme working conditions.
Key features: Ultra-high temperature resistance, wear resistance, radiation resistance, chemical resistance, low precipitation in vacuum, and high cleanliness.
Typical applications: semiconductor equipment, aerospace components, medical devices, high-end industrial equipment, and insulation and isolation materials for extreme conditions.
3. Customized modified film services
We can perform nano-modification, low dielectric adjustment, surface roughening, and plasma treatment according to customer needs, and adapt to secondary processing technologies such as die-cutting, composite, and metallization coating.
Downstream industries
New Energy Storage and Power Batteries | 5G Communication and RF Electronics | Automotive Electronics | Semiconductor Precision Equipment | Rail Transit Electrical Insulation | Aerospace Support | Industrial Filtration and Specialty Tapes | Medical Devices and Research Institutes
Core Value of Domestic Production
In the past, the domestic high-end ultra-thin PPS and PAEK films were monopolized by overseas giants, resulting in long delivery times, high procurement costs, and supply restrictions on some specifications. Shanghai Hesheng New Materials has achieved complete localization of materials, processes, and equipment, shortening delivery cycles while maintaining equivalent performance. It supports continuous supply from small-batch sampling to large-batch production, helping downstream manufacturers reduce supply chain risks and promoting the independent control of high-end materials.
FAQs for Five Major Industries
Q1 : How to distinguish between PPS film and PI/PTFE film when making a selection?
A: PPS film offers excellent overall cost-effectiveness, is chemically resistant, has low water absorption, and can be used continuously at 200℃, making it suitable for large-scale industrial applications such as automotive, 5G, and energy storage. PI film has higher temperature resistance but is more expensive and is mostly used in aerospace applications with extreme high temperatures. PTFE has the best chemical resistance but poor mechanical strength and is prone to creep, making it unsuitable for precision insulating high-frequency substrates. The appropriate choice should be made based on a comprehensive consideration of operating temperature, stress, and budget.
Q2 : How thin can Hesheng New Materials' PPS film be made? Does it support small-batch sample production?
A: We can stably mass-produce 6-25μm ultra-thin PPS films with a thickness tolerance of ±0.5μm; we support small-batch sampling and prototyping, and also accept large-volume industrial orders. Non-standard widths and surface modifications can be customized upon request.
Q3 : Is PPS film easy to bend and crack?
A: PPS film produced by biaxial stretching process has good toughness. Combined with heat setting process, it is not easy to crack after repeated bending, making it suitable for flexible insulating gaskets. If it is unstretched cast film, it is more brittle. When purchasing, it is necessary to confirm that it is a finished biaxial stretching film.
Q4 : What are the storage conditions and shelf life of PPS film?
A: Store at room temperature away from light and in a dry place. Avoid heavy pressure and direct sunlight. The original manufacturer's shelf life for a whole roll is 24 months. It is recommended to use the roll within 6 months after opening to prevent edge curling and stress rebound.
Q5 : Is the delivery time for PAEK film very long? Can it be replaced by imports in China?
A: PAEK is a high-barrier, high-end material. Hesheng New Materials has achieved domestic production, which significantly reduces delivery time compared to imports. For the harsh working conditions of aerospace and semiconductor, it is recommended to conduct sample verification first and confirm suitability for the working conditions before bulk purchase.
Keywords: Shanghai Hesheng New Materials, Harsom, PPS polyphenylene sulfide film, PAEK polyaryletherketone film, domestic production of high-performance specialty films
Business cooperation:
Contact Person: Mr. Wei (CEO)
Mobile phone: 18321726860
Telephone: 021-50201025
Email: [email protected]
Postal code: 201206
Shanghai Hesheng Juneng New Materials Co., Ltd.
Official website: www.harsomam.com
Address: 2nd Floor, Building 4, Jinqiao Modern Industrial Service Park, No. 27 Xinjinqiao Road, Pudong New Area, Shanghai
Disclaimer: The content of this article is for industry exchange and reference only, and does not constitute investment or business cooperation advice. The information is for reference only.