From insoles to complete shoes, iSUN3D takes a crucial step forward.
The factor that has always determined the “ceiling” of 3D printed shoes is not the equipment, but the materials. In the past, whether it was DLP photopolymer resin or FDM thermoplastic filament, materials have always been the core factor limiting the application of 3D printing in footwear.
Currently, the mainstream photopolymer 3D printing materials for shoes mostly use two-component elastic resins, whose feasibility has been validated in the market.
However, these materials also have some issues, such as high viscosity, which places higher demands on the performance of printing equipment. Additionally, these mixed materials often have certain time-limited usability, leading to significant material waste.
If there were a single-component elastic resin that could match the performance of the current two-component resins, it would undoubtedly break existing technical barriers and reshape the market landscape. It could even be said that in the future, 3D printing a pair of photopolymer shoes at home would not be a problem.
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iSUN3D provides the answer: single-component can also work
On November 18, 2025, according to resource reports, Zhongke 3D Forming Technology (Shenzhen) Co., Ltd. (hereinafter referred to as “iSUN3D”) officially launched a complete 3D printing solution centered around single-component elastic resin at the Formnext exhibition in Germany.
The core material of this solution is the FlexOne series of high-performance elastic resins, compatible with LCD/DLP photopolymer equipment with wavelengths of 385–405nm.
Here are the material test data provided by iSUN3D: Tear strength > 50kN/m, about 2-3 times that of commonly used elastic resins in the industry; Tensile strength > 20MPa, elongation at break > 250%, mainly due to the “molecular spring structure” formed by dynamic crosslinking segments inside, effectively balancing rigidity and flexibility; Bending fatigue life > 1 million times, far exceeding the common range of 10,000 to 50,000 times for traditional elastic resins, equivalent to an increase in durability by 6-30 times.
If just looking at the data is not intuitive enough, here’s an explanation of what these performances mean in footwear applications:
High tear strength can effectively resist lateral pulling and tearing loads on the upper and midsole during wear; Excellent tensile performance and ductility ensure that the material does not easily break under severe deformation; Strong bending fatigue resistance can withstand high-frequency repeated bending during daily wear.
In summary, the single-component FlexOne series resin is also capable of 3D printing footwear, and its performance has met the standards.
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HSL 100 series: Two pairs of large-size shoes in 2-3 hours
If you are looking for an elastic resin that does not require mixing, is ready to use upon opening, can be reused, and is preferably low viscosity, easy to clean, and low odor, for direct 3D printing of shoes, you can consider purchasing FlexOne resin.
If you not only want materials but also a complete high-efficiency 3D printing shoe solution, you can also look at the accompanying HSL 100/100MAX ultra-fast photopolymer 3D printer launched by iSUN3D.
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Single-component elastic resin can do it! A new company emerges in the 3D printing shoe sector
Reprint, single-component elastic resin can do it! A new company emerges in the 3D printing shoe sectoreSUNAdded to Top StoriesEnter comment Video Details
The equipment offers two printing formats of 14 inches and 16 inches, with a maximum Z-axis printing height of 40cm, covering the vast majority of footwear printing needs; it uses the oxygen-blocking dead zone principle to achieve ultra-fast printing with low release force; at the same time, it is equipped with a COB light source with a uniformity of over 90%, balancing printing efficiency and dynamic stability, ensuring that output quality is always reliable.
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From insoles to complete shoes, iSUN3D’s transition is seamless
In fact, iSUN3D (Zhongke 3D) is not a new player; as a wholly-owned subsidiary of Shenzhen Guanghua Weiye Co., Ltd., it entered the 3D digital rehabilitation medical field as early as 2017.
As a pioneer in 3D printed orthopedic insoles in China, iSUN3D led the formulation of the industry standard for “3D Printing of Orthopedic Insoles,” and its product system has been listed as a typical application of additive manufacturing by the Ministry of Industry and Information Technology.
It is reported that iSUN3D can currently stably produce 3,000 pairs of insoles per month, with over 150 offline franchise stores.
This integrated 3D printing solution extending from insoles to complete shoes not only enriches the product choices of existing channels but also integrates a mature foot measurement customization data system, truly achieving personalized footwear custom printing.
This may be the natural advantage that distinguishes iSUN3D from other 3D printing footwear manufacturers. Its confidence comes from its parent company Guanghua Weiye, also known in the industry as eSUN.
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Real materials, stepping into the front line of eSUN’s R&D
Recently, during a visit to Wuhan, I toured eSUN’s R&D and testing center. The entire four-story R&D space allowed me to experience their strength in material technology firsthand.
To be honest, the various dazzling scientific instruments inside left me in awe, with a configuration that is quite advanced. Functional areas such as thermal analysis rooms, high-temperature analysis rooms, spectral rooms, stability laboratories, physicochemical laboratories, and chromatography rooms are all available, and the level of professionalism is impressive.
In the past, we often wondered how this company could achieve such a comprehensive 3D printing material system. They not only have filaments but also resins, and now even powder materials; and the speed of new product iterations is extremely fast.
To meet the demand for flexible printing, they have long introduced various TPU materials with different hardness in the FDM field, and recently launched PEBA and related foaming materials.
The elastic photopolymer resin now launched is the result of over 20 years of deep accumulation in material synthesis and modification by this established material manufacturer. If another manufacturer claimed to produce high-performance single-component elastic resins, it might raise doubts; but if it is eSUN, it seems quite natural and even expected.
Previously, we viewed 2025 as the year of the explosion for 3D printed shoes, and with the advent of single-component elastic resins, we may witness a new turning point in 2026.
(Note: The above content is reprinted from the 3D Printing Resource Library)
If you want to learn more about solutions or product details, please visit the official website (www.isun3d.com) or call 0755-8658 1960 for consultation.