3Dresyn EP4 RTD90, Rigid & Tough, Ultra Hard, Ultra Safe & Bio for "Emergency Printing" of rigid parts, such as respirator turbines, fans, blades

Product description

3Dresyn EP4 RTD90 is an ultra safe and biocompatible 3D resin for emergency printing of rigid parts, such as respirators.

It is ideal for emergency printing of heat resistant respirator fans. It is supplied as samples with no profit to customers who can justify their lack of resources in order to support emergency printing of parts for hospital use.

Application framework

Designed for use in vat photopolymerization systems (SLA, DLP and LCD) within controlled professional environments for emergency printing of rigid, tough and heat resistant parts for hospital use.

Typical applications

• Respirators
• Heat resistant respirator fans
• Respirator turbines
• Respirator blades
• Rigid hospital-use parts

Measured mechanical properties

• Tensile strength: <50 MPa (ISO 527-1 / ISO 527-2)
• Flexural strength: <60 MPa (ISO 178)
• Young’s modulus: >3000 MPa (ISO 527)
• Elongation at break: <5% (ISO 527)
• Shore hardness: D90 (ISO 868)

Measured physical properties

• Viscosity: <6000 mPas at 23°C ± 2°C (ISO 3219)
• Heat deflection temperature: > 120ºC @0.45MPa (ISO 75)
• Shrinkage: very low
  

Functional performance characteristics

• Rigid and tough, rigid with excellent heat resistance to avoid deformation of respirator turbines, fans, blades, etc.
• Supplied in two colors: black and cyan
• Ultra safe
• Ultra hard
• Designed for fast printing and easy and fast fine tuning to different printer settings
• Very rigid even at 100C, ideal for withstanding heat without deformation
• Medium good impact and shattering resistance
• Biocompatible
• Durable
• Very high resolution
• Color stability: non settling of color

Processing and handling performance

• Printable by most commercial and professional SLA, DLP & LCD 3D printers
• Increased durability of the resin tank

Chemical and safety characteristics

• Ultra safe
• Synthetic resin source
• Biocompatible
• Organo-tin free

Testing & processing disclaimer

Final heat resistance, rigidity, impact resistance, printability and suitability for hospital-use applications depend on printer type, exposure settings, part geometry, processing conditions and post-curing workflow, and must be validated by the user according to the intended application.

Disclaimer

This material is supplied as a professional manufacturing material and is not marketed as a finished medical device. Final part performance and suitability must be validated by the user according to the intended application.

Document reference: TDS-3DRESYN-EP4-RTD90-EN | Version: 1.0 | Last updated: March 2026