In the fields of 3D printing, industrial parts manufacturing and handicrafts, UV curing resin has become a core material due to its advantages such as fast curing and high precision. However, traditional resins often have difficulty in balancing hardness and flexibility, which limits their application. Shenzhen Youyang Technology and U-Sunny and other companies have introduced balanced hardness-flexibility UV resins through innovative technologies, becoming a breakthrough solution in the industry.
1. Technical characteristics: both hard and tough, excellent performance
Balanced UV resin achieves a synergistic improvement in hardness and flexibility by optimizing the molecular structure and curing process:
Hardness index: After curing, the Shore D hardness can reach 80-90D (such as high-precision resin), and some mixed formulas (such as hard and soft resins) can be adjusted to 65-75D, while maintaining 130% elongation at break, suitable for industrial parts that need to resist impact.
Mechanical properties: Flexural modulus reaches 1500-2500 Mpa, tensile strength 35-65 Mpa, with both compression and tensile resistance
, meeting the needs of complex stress environments.
Low shrinkage: The shrinkage rate is less than 3%, which reduces printing deformation and improves dimensional accuracy, especially suitable for high-detail models and precision parts.
2. Application scenarios: adaptability in multiple fields
Industrial manufacturing: used for gears, connectors and other parts that need to be wear-resistant and withstand periodic vibrations. For example, Anycubic UV Tough Resin's anti-fracture properties can extend the life of parts.
Creative design: In the production of jewelry and decorations, the transparency (refractive index increased by 1.5 times) and flexibility (bendable without breaking) of resin achieve the combination of artistry and functionality.
Architecture and modeling: The low shrinkage and matte effect of high-precision resin are suitable for architectural prototypes and hand-made models, while the anti-fouling properties of water-based UV resin LUX 250 are suitable for surface coatings.
3. Technical advantages: environmental protection and efficiency go hand in hand
Environmentally friendly formula: using water-based substrates and low VOC ingredients to reduce pollution (such as Shenzhen Youyang's UV prepolymer resin meets EU environmental standards).
Fast curing: The curing time of some product layers is only 4-12 seconds, supporting efficient mass production.
Wide compatibility: compatible with 365-405nm wavelength light sources, suitable for mainstream DLP/LCD 3D printers.
4. Industry benchmark brand recommendation
Shenzhen Youyang Technology: Its UV prepolymer resin achieves "self-wetting" function through molecular modification, reduces dependence on additives, and performs well in packaging printing and high-solid coatings.
U-Sunny: High-hardness steel wool-resistant resin U-9310 series, with both yellowing resistance and high temperature resistance, is suitable for automotive accessories and electronic equipment casings.
5. Future trends: Technological innovation drives the market
As environmental regulations become stricter, UV resins will develop towards lower toxicity and higher performance. For example, plant-based biodegradable resins and organic-inorganic hybrid technologies (such as Shenzhen Youyang's epoxy-modified polyester resins) will further broaden the application scenarios.
