In aerospace, new energy, electronics, semiconductors, and other fields, there is a material known as the “guardian of extreme environments” — Thermoplastic Polyimide (TPI). With its ultra-wide temperature range, high mechanical strength, and strong insulation, it becomes the “key code” for upgrading high-end products.
On this track long dominated by international giants, Jiangsu Junhua HPP Special Polymer Materials Co., Ltd.’s JSJHTPI-02 molding powder, backed by full-chain technical support from raw material polymerization to customized sheet production and precise performance control, has enabled domestic TPI to leap from “usable” to “reliable,” becoming a trusted preferred brand in the industry.
Why is TPI a “hot commodity” in high-end materials?
The ability of TPI to stand firm in high-end manufacturing is no coincidence; its “all-round strength” stems from its molecular structure with stable aromatic heterocyclic units, giving it hardcore properties far beyond ordinary engineering plastics.
Impressive temperature resistance: JSJHTPI-02 molding powder operates stably in extreme temperature ranges from -269°C to 250°C, with no brittleness, cracking, or deformation in either cryogenic environments or high-temperature conditions, ensuring consistently reliable performance.
Maximum mechanical strength: JSJHTPI-02 achieves a flexural strength of 160 MPa, flexural modulus of 3.1 GPa, Rockwell hardness of 122 HRR, wear resistance and impact resistance, with low long-term wear. Tensile strength reaches 118 MPa with a tensile modulus of 3.1 GPa, offering high toughness.
Excellent insulation: JSJHTPI-02 has a dielectric constant of 3.4. At 23°C, volume resistivity is 10-16 Ω·cm, providing a strong safety barrier for electronic devices.
Safe and environmentally friendly: JSJHTPI-02 has strong self-extinguishing properties and low smoke emission, remains stable without volatilization under high temperature, high vacuum, and radiation environments, meeting strict environmental requirements.
These characteristics make JSJHTPI-02 molding powder an “irreplaceable material” in aerospace components, new energy equipment, precision electronics, special medical devices, and more, directly determining the performance ceiling of end products.

From performance to full chain — tangible advantages
There are many TPI products on the market, but few brands can match international standards as precisely as Junhua HPP, while also holding full-chain independent advantages. Leveraging years of experience in R&D and manufacturing of specialty polymer materials, Junhua HPP’s TPI core strengths are embedded in every performance detail.
01. Full-chain independent control, quality built from the source
As a professional manufacturer and service provider of high-performance plastics such as PEEK and PI, Junhua HPP has completed R&D and pilot-scale scale-up, moved to mass production, and achieved stable performance indicators, reasonable pricing, and reliable supply. By connecting the entire chain from raw material R&D to finished product delivery, it builds the core confidence for consistent product quality:
● Self-developed core technology: Based on years of technical accumulation, independently controls TPI powder polymerization process, managing molecular structure and molecular weight distribution from the source to ensure consistent performance across batches and avoid batch variation;
● Strict quality control system: The entire production process follows high-standard testing, from raw material purity to mechanical and dielectric properties of finished products, with every indicator traceable; yield rate remains among the highest in the industry;
● Scaled production capacity: A dedicated PI workshop has been built; the JSJHTPI-02 production line can handle stable delivery of large-volume orders as well as customized requirements, with delivery cycles shortened by 20% compared to the industry average, eliminating customer “waiting anxiety.”

02. Deep scenario adaptation, validated across multiple fields
The advantages of JHTPI-02 molding powder ultimately need to speak through practical applications. With precise performance control, it has taken root in several high-end fields:
● Aerospace: Used for high-temperature wire insulation layers and lightweight structural components, operating stably in extreme cold high altitudes and high-temperature conditions, with low volatiles that do not contaminate precision instruments;
● New Energy: Suitable for high-voltage motor insulation components and battery seals, resistant to temperature and voltage, helping improve equipment safety and service life;
● Precision Electronics: As a core material for high-frequency components and flexible electronics, its low loss and strong insulation ensure stable signal transmission;
● Special Industrial: Used for bearings and seals in high-temperature conditions, wear-resistant and radiation-resistant, reducing equipment maintenance costs.
Choosing Junhua HPP materials — reliability beyond measure
Under the wave of “domestic substitution,” JHTPI-02 molding powder not only breaks the price monopoly of international brands but also wins market recognition with solid performance and service.
From every precise data point of the material, to the fully independent and controlled production system, to successful application cases across multiple fields, Junhua HPP always adheres to the core values of “Integrity, Pragmatism, Cooperation, Innovation, Win-win,” providing customers with one-stop service from material selection to application solutions.
If your product faces severe challenges such as high temperature, extreme cold, high pressure, or strong radiation, and you need a PI material with stable performance and reliable quality, Junhua HPP Co., Ltd. is definitely your best choice.

