

3Dresyn EA20 ESD, elastic, ESD compliant
Product description
3Dresyn® EA20 ESD is an ultra-soft, highly elastic photopolymer formulation with integrated electrostatic discharge (ESD) properties, designed for advanced engineering applications in SLA, DLP and LCD 3D printing workflows. The material provides extreme flexibility, very high elongation and soft rubber-like behavior, combined with controlled electrical conductivity for ESD-safe environments.
This formulation is based on a monomer-based (MB) system engineered to achieve maximum elasticity and deformability, requiring proper post-curing and cleaning to reach final material performance.
Application framework
Designed for use in vat photopolymerization systems (SLA, DLP and LCD) within professional and industrial environments requiring ESD-safe components with ultra-soft, elastic and highly deformable behavior.
Typical applications
- Ultra-soft ESD-safe components
- Soft seals, membranes and damping elements
- Shock-absorbing and cushioning systems
- Wearable or contact components requiring extreme elasticity
- Engineering prototypes with very soft elastomer-like behavior
Measured mechanical properties
- Tensile strength: <4 MPa (ISO 527)
- Flexural strength: <3 MPa (ISO 178)
- Young’s modulus: <3 MPa (ISO 527)
- Elongation at break: >90% (ISO 527)
- Shore hardness: A20 (ISO 868)
Electrical properties
- Surface resistivity: <109 ohms
- Compliant with ESD standards: EN 61340, EN ISO 20344–20347
Measured physical properties
- Viscosity: <50 mPa·s at 25 °C
- Shrinkage: <1% (typical)
- Resolution capability: very high (process-dependent)
- Available colors: customizable
Functional performance characteristics
- Ultra-soft and extremely elastic material behavior
- Elastic and foldable without breaking
- Integrated ESD-safe performance
- Excellent deformation recovery and energy absorption
- Durable under repeated flexing and compression
- Very high resolution with fine feature capability
Processing and handling performance
- Printing technologies: SLA, DLP and LCD
- Compatible with most commercial and professional systems when properly calibrated
- Very low viscosity enabling easy processing and recoating
- Requires proper post-curing and cleaning to reach final performance and reduce residual reactivity
Chemical and safety characteristics
- Monomer-based (MB) formulation
- Proper post-curing and cleaning required to eliminate residual toxicity
- Organo-tin free formulation
Testing & processing disclaimer
Material properties are measured under controlled laboratory conditions and may vary depending on printer type, exposure conditions, layer thickness, build orientation and post-processing workflow.
Disclaimer
This material is supplied as a professional manufacturing material for engineering and prototyping workflows. It is not marketed as a finished product. Final part performance, safety and suitability must be validated by the user according to the intended application.
This technical datasheet should be used together with the relevant processing, calibration, safety and workflow documentation available in the 3Dresyns® Resources section.
Document reference: TDS-EA20-ESD-EN | Version: 1.0 | Last updated: March 2026
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