Silicone like 3Dresyn Soft SR with Shore A30

3Dresyn® Soft SR is a silicone-like photopolymer developed to replicate the touch, elasticity and resilience of conventional soft silicone rubber while enabling high-resolution additive manufacturing.

Designed for use in vat photopolymerization systems (SLA, DLP and LCD) within controlled professional environments. Suitable for applications requiring very soft, elastic materials with high flexibility and durability.

• Soft silicone-like functional parts
• Flexible seals and interfaces
• Soft-touch components
• Wearable prototypes
• Applications requiring high elongation and low stiffness

• Tensile strength: <2 MPa (typical) (ISO 527)
• Young’s modulus: <5 MPa (typical) (ISO 527)
• Elongation at yield: >80% (typical) (ISO 527)
• Shore hardness: A30 (ISO 868)
• Very low shrinkage

• Density: 0.90–1.20 g/cm³, depending on formulation and, where applicable, selected version (ISO 1675)
• Printing shrinkage: no measurable dimensional shrinkage after calibration under validated processing conditions
• Low viscosity (Brookfield)
• Viscosity: optimized within the processing range required for the intended printing process and application

• Silicone-like touch and resilience comparable to conventional soft silicone rubber
• Softer version relative to 3Dresyn® Hard SR
• Blendable with 3Dresyn® Hard SR to achieve customized Shore hardness values
• Durable soft-elastic mechanical response
• Very high resolution (feature definition below 20 µm depending on printer settings)
• Organo-tin free
• Synthetic resin system

• Compatible with most commercial and professional SLA, DLP and LCD 3D printers

Note: This resin exhibits lower temperature resistance than conventional RTV silicones. For applications requiring high-temperature-resistant silicone materials, it is recommended to 3D print durable or sacrificial molds for subsequent casting or injection of conventional RTV silicones.

Material performance depends on printer type, exposure conditions, geometry and full workflow implementation. Mechanical and functional performance must be validated by the user for each specific application.

• Ultra-soft silicone-like behavior
• Customizable hardness through blending with Hard SR
• High elongation and flexibility
• Excellent resolution and dimensional stability
• Compatible with SLA, DLP and LCD technologies
• Organo-tin free formulation

This material is supplied as a professional manufacturing material and is not marketed as a finished product. Final performance and process validation remain the responsibility of the user depending on printer, geometry and workflow conditions.

For silicone-like resin selection, compare the wider material family and adjacent Shore hardness routes according to the required softness and elastic response.

• Silicone-Like 3D Resins
• Silicone-like 3Dresyn Hard SR — Shore A70
• Silicone-like 3Dresyn SR

This technical datasheet should be used together with the relevant processing, calibration, safety and workflow documentation available in the 3Dresyns® Resources section.

Access the 3Dresyns® Technical Resources (IFU, calibration, CRT, post-processing and troubleshooting)