3Dresyn SSA1 is our Swellable Super Absorbent and Ultra Elastic Hydrogel resin

Product description

3Dresyn® SSA1 is a swellable super-absorbent photopolymer developed for SLA, DLP and LCD additive manufacturing, enabling the fabrication of rigid printed structures that transform into ultra-soft, highly elastic hydrogel materials upon immersion in water or alcohol.

Application framework

Designed for use in vat photopolymerization systems (SLA, DLP and LCD) within controlled professional and research environments. Suitable for hydrogel structures, scaffold fabrication and applications requiring post-print swelling transformation.

Typical applications

• Super absorbent hydrogel structures
• Ultra-soft gel and jelly-like materials after swelling
• Hydrogel scaffolds for tissue engineering research
• Complex structures requiring post-print softening
• Customizable absorbent and elastic systems

Measured mechanical properties (before swelling)

• Shore hardness: D80 (ISO 868)
• Tensile strength: >40 MPa (ISO 527)
• Young’s modulus: >2000 MPa (ISO 527)
• Elongation: <8% (ISO 527)
• Very low viscosity: <100 cps (Brookfield)

Functional performance characteristics

• Transforms into ultra-soft hydrogel after immersion
• Absorbs more than 3–4 times its weight in water and/or alcohol
• Ultra elastic after swelling (elongation >>300%)
• Maintains original geometry after swelling
• Fast swelling in water and alcohol
• Rigid and tough before swelling to enable high-resolution printing
• Non-brittle material with shape retention after swelling
• High resolution and very low shrinkage
• Metal- and organo-tin free formulation

Processing and handling performance

• Printable by most commercial and professional SLA, DLP and LCD 3D printers
• Fast printability even with low power LCD printers
• Increased durability of the resin tank
  
• Can be combined with 3Dresyn® NS1 to tune final consistency after swelling

Processing note

The final mechanical behavior depends on swelling conditions, solvent type (water or alcohol), immersion time and geometry. Swelling induces a transition from rigid to ultra-soft elastic behavior.

Testing & processing disclaimer

Material performance, swelling behavior and final mechanical properties depend on the complete material–printer–process–conditioning workflow. Full validation is required for each specific application.

Why choose 3Dresyn® SSA1

• Enables printing of ultra-soft hydrogels via post-process swelling
• High mechanical strength before swelling for precise fabrication
• Extreme elasticity after swelling
• Maintains geometry while transitioning to soft state
• Suitable for complex scaffold and hydrogel structures
• Compatible with SLA, DLP and LCD technologies

Regulatory & legal notice

This material is supplied as a professional manufacturing and research material and is not marketed as a finished product. Final performance, swelling behavior and application suitability remain the responsibility of the user.

Document reference: TDS-SSA1-EN | Version: 1.0 | Last updated: March 2026