Flexible resin with rubber-like properties

Prusament Resin Flex80 White is a flexible photopolymer resin designed for producing detailed, soft, and simultaneously durable parts. After proper curing, it reaches a hardness of approximately 80 Shore A, so its properties resemble those of a car tire, firmer leather, or a rubber sole.

The resin combines flexibility, strength, and a high level of detail. It is therefore suitable not only for hobby models, but also for rapid prototyping and producing functional components that must withstand bending, compression, or impacts.

Main benefits

• Rubber-like and flexible character of finished prints
• Hardness of approximately 80 Shore A
• Good resistance to mechanical stress
• High precision and retention of fine details
• Short exposure times on compatible printers
• Lower viscosity with no preheating required
• Less pronounced odor than many common flexible resins
• Easy washing of prints in isopropyl alcohol
• Bisphenol A-free formulation
• Compatible with most SLA/MSLA printers operating in the 370–410 nm range

Ideal applications

Prusament Resin Flex80 White is ideal for:

• functional flexible prototypes,
• tires and other RC model components,
• durable figurines and models with a soft surface,
• seals, damping elements, and flexible covers,
• handles and ergonomic components,
• organic structures and educational models,
• anatomical and medical demonstration models,
• design objects with delicate structures.

Precise printing on SLA/MSLA printers

The material has been optimized especially for the Original Prusa SL1S SPEED, but it can also be processed on most other SLA/MSLA 3D printers with a suitable wavelength. For the best results, we recommend using the prepared material profile in PrusaSlicer.

For the white variant, at a layer height of 0,05 mm, the recommended exposure time is approximately 6,5 seconds on the Original Prusa SL1 and 3 seconds on the Original Prusa SL1S SPEED. Actual values may depend on the specific printer, display condition, temperature, and model geometry.

For large or complex models, it is advisable to use stronger supports, a higher support density, and a profile intended for higher-viscosity materials.

Mechanical properties

After 60 minutes of additional curing in the CW1S unit, test specimens achieve approximately 17 MPa tensile modulus, 9 MPa tensile strength, and 60% elongation. The duration and method of curing affect the final hardness, flexibility, and strength of the model.

Safe handling

Uncured resin may irritate the skin and eyes and may cause an allergic reaction. Always use protective gloves and eye protection when working, avoid contact with the skin, and work in a well-ventilated area. Liquid resin and materials contaminated with it must not be disposed of in regular waste or down the drain. Read the manufacturer's safety instructions before use.

Key features:

• Flexible prints with rubber-like properties
• Hardness of approximately 80 Shore A
• High durability while maintaining flexibility
• Detailed surface and precise fine structures
• Suitable for functional prototypes and mechanically stressed parts
• Optimized for the Original Prusa SL1S SPEED
• Compatible with most SLA/MSLA 3D printers
• Low viscosity with no preheating required
• Easy washing in isopropyl alcohol
• Less pronounced odor and BPA-free formulation