Product Description
Prusament Resin Flex80 Transparent Clear 1kg is a premium flexible photosensitive resin from Prusa Polymers, designed for MSLA/LCD 3D printers (405 nm). Thanks to a hardness of around
80 Shore A, it behaves similarly to softer rubber – prints are flexible, impact-resistant, and suitable for repeated bending.
Unlike many other flexible resins on the market,
Prusament Flex80 has significantly
lower viscosity and odor, which facilitates mixing, removal from the resin tank, and subsequent cleaning of models in isopropyl alcohol. The
Transparent Clear variant is specifically developed to
minimize unwanted yellowing after curing and offer the cleanest clear appearance possible.
The resin is optimized for
Original Prusa SL1 and SL1S SPEED, where it achieves very short exposure times and high productivity. At the same time, it is compatible with most common
third-party MSLA printers (Creality, Anycubic, Elegoo, etc.) that use a 405 nm wavelength – just adjust the exposure times according to the printer manufacturer's recommendations.
Main Advantages
- Flexibility 80A (Shore A) – ideal for parts that must bend, compress, or absorb shocks
- Clear transparent color – suitable for transparent components, light diffusers, covers, and visual prototypes
- Limited yellowing after curing – special formula for cleaner and longer-lasting clear prints
- Low viscosity – easy dripping, faster tank wiping, easier cleaning
- Lower odor than many competing flexible resins
- Tuned profiles in PrusaSlicer for Original Prusa SL1/SL1S – just select the material and print
- High detail and precision – suitable even for small and complex parts
- Universal use on a wide range of 405nm MSLA/LCD printers
Recommended Use
Prusament Resin Flex80 Transparent Clear is ideal for:
- RC models and hobby
- tires and wheel inserts for RC cars
- damping elements, bumpers, flexible locks
- Functional technical parts
- seals, caps, flexible couplings
- protective frames and bumpers for electronics
- Prototyping
- functional prototypes with rubber-like behavior
- transparent parts for visual inspection of flow, assembly, etc.
- Medical and anatomical models (non-medical, educational)
- flexible tissue and organ models for demonstrations and training
- Design and art
- flexible figures, toys (for non-commercial use – always follow safety instructions)
- lighting objects, LED diffusers, decorative elements
Print Settings (reference values)
Original Prusa SL1 / SL1S SPEED, layer 0,05 mm:
| Printer |
Color |
Exposure time per layer |
| Original Prusa SL1 |
Transparent Clear |
approx. 15 s |
| Original Prusa SL1S SPEED |
Transparent Clear |
approx. 5 s (SLOW profile) |
For best results, use the integrated profiles in PrusaSlicer for Prusament Resin Flex80. For other printers, take values as a starting point and fine-tune exposure with test models.
Recommendations for print support:
- higher support density (approx. 200 %)
- higher support head penetration (approx. 0,6 mm)
- in case of problems with adhesion or details, use the High-Viscosity resin profile in PrusaSlicer
Physical Properties (typical values)
The listed properties are indicative typical values from the manufacturer and may vary depending on printer type, settings, and curing conditions.
- Hardness: approx. 80 Shore A (flexible material)
- Type: MSLA/LCD UV resin, 405 nm
- Color: Transparent Clear
- Viscosity: lower than common flexible resins, easy handling
- Behavior after curing: flexible, impact-resistant, partially rubber-like
Safety and Handling
- Always print in a well-ventilated area.
- Use protective gloves and recommended PPE when handling uncured resin.
- Avoid contact with skin and eyes; if affected, rinse with plenty of water and follow the official safety data sheet (SDS).
- Do not pour unused resin or residues into waste or sewers – dispose of it as hazardous chemical waste according to local regulations.
- Paper towels, gloves, bottles, and other material contaminated with uncured resin should also be disposed of as hazardous waste.
- Fully cured prints (thermoset material) are not recyclable like common filaments – they belong in general waste.
Compatibility
- Optimized for: Original Prusa SL1, Original Prusa SL1S SPEED
- Compatible with most MSLA/LCD 405 nm printers (Creality, Anycubic, Elegoo, Phrozen, etc.)
- Recommended to use original or verified profiles and perform brief testing of exposure times.
Package Contents
- 1× bottle of Prusament Resin Flex80 Transparent Clear – 1 kg in original packaging
Key Benefits for Your E-shop / Customer
- Verified material directly from the manufacturer of Original Prusa printers
- Ideal for users looking for a reliable and truly flexible resin
- Great balance between flexibility, print quality, and ease of use
- Thanks to the clear color and limited yellowing, it is suitable for transparent functional parts and design projects
Key Features:
- Flexible resin with a hardness of approx. 80 Shore A – rubber-like behavior of prints
- Transparent Clear color with limited yellowing after curing
- Low viscosity and lower odor than common flexible resins
- Optimized for Original Prusa SL1 and SL1S SPEED with short exposure times
- High print detail and accuracy even for small and thin-walled parts
- Compatible with most MSLA/LCD 3D printers with a wavelength of 405 nm
- Ideal for RC tires, flexible functional parts, educational and medical models, design projects
- Official Prusament brand material – assurance of quality and support in PrusaSlicer
