High-Performance Dual-Cure Elastomer System for Advanced DLP 3D Printing

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High-Performance Dual-Cure Elastomer System for Advanced DLP 3D Printing

Introduction

SINOCURE Chemical Group introduces the SINOMER UVU6203-3DF resin and UVU6203CA-3DE curing agent—a advanced dual-cure polyurethane methacrylate elastomer system designed for high-precision DLP 3D printing. This two-part system combines UV-initiated curing with thermal post-curing to deliver exceptional mechanical properties, making it ideal for applications requiring flexibility, durability, and fine detail resolution.


Product Overview: SINOMER UVU6203-3DF Resin

UVU6203-3DF is an aliphatic urethane urea methacrylate resin supplied as a two-component system (Part A and Part B). It is formulated to provide:


  • High elongation at break (300–700%)

  • Excellent tensile strength (10–30 MPa)Remarkable tear resistance (>60 N)

  • Shore A hardness of 70–75

  • Low viscosity and light color (Pt-Co ≤40#)

This NCO-free and organotin-free resin is optimized for DLP printing, offering low odor, minimal yellowing, and reliable performance in producing complex, elastic parts such as lattice structures and shoe midsoles.


Curing Agent: SINOMER UVU6203CA-3DE

The UVU6203CA-3DE curing agent is an epoxy-modified cycloaliphatic amine methacrylate that enhances the system’s mechanical properties through thermal curing. Key features include:

  • Amine value: 280–350 mg KOH/g

  • Viscosity: 3,500–6,000 mPa·s (25°C)

  • Low odor and anti-yellowing characteristics

When combined with UVU6203-3DF at a ratio of 9% (relative to Part A), it enables dual-cure mechanisms—UV-initiated shaping followed by thermal crosslinking—resulting in improved elasticity, toughness, and low-temperature flexibility.


Applications in DLP 3D Printing


This system is particularly suited for:

  • Flexible lattice models and hollow footwear components

  • Wear-resistant elastic objects requiring high detail and durability

  • Industrial prototypes needing high tear resistance and repeated flexural endurance

Recommended Process:

  • Mix Part A (91%), Part B (9%), and 1.5–2% photoinitiator.

  • Print using DLP at 20–25°C with exposure times of 65–105 ms.

  • Post-cure printed parts at 80–100°C for 1–2 hours.

  • Final parts perform reliably in environments ranging from -20°C to 80°C.


Why Choose This System?

  • Dual-Cure Technology: Enables high precision during printing and superior mechanical properties after thermal treatment.

  • User-Friendly: Low viscosity facilitates easy processing; low odor improves workspace comfort.

  • Eco-Conscious: Free of NCO and organotin compounds.

  • Proven Performance: Excellent adhesion to TPU substrates and resistance to deformation.


Conclusion


The SINOMER UVU6203-3DF resin and UVU6203CA-3DE curing agent represent a sophisticated solution for manufacturers seeking to produce durable, flexible, and high-resolution 3D printed parts. With its balanced mechanical performance and compatibility with DLP printing processes, this system opens new possibilities in footwear, soft robotics, and customized elastic components.


For technical datasheets and samples, contact SINOCURE Chemical Group at info@sinocurechem.com.


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