RESIONE F Series Flexible Resin Instruction

1. The Product Description

F39, F39T, and F69 are flexible resins available in white, transparent, and black, offering clear print details. Compared to other flexible materials, they provide a high printing success rate, excellent tear strength, and flexibility. These resins are widely used in applications such as creating vests, capes, weapons, and shoes, as well as in the manufacture of tire models, shoe samples, seals, buffers, gaskets, transmission belts, and other flexible prototypes. Mixing these flexible resins with other resins can further enhance print flexibility.

F80 is a soft and elastic resin offered in black and pink. The pink variant is particularly suitable for creating dental gingival models, while the black option is ideal for toy tires, shoe samples, seals, buffers, and various elastic prototypes. F80 resin maintains its softness even at colder temperatures. However, due to its high viscosity, which can present a printing challenge, it is not recommended for novice users.

2. Material Properties Data

Comparison of Tensile Strength

A bar chart titled 'Comparison of tensile strength of various rubber materials at 25°C' displays tensile strength values in both MPa and Psi for different rubber types, highlighting the F39/F69 and F80 resins. The F39/F69 resin exhibits higher tensile strength compared to the F80 resin.

3. Printing

Soft resin prints can stretch and deform when separated from the FEP film during printing. Follow these steps to improve the printing success rate.

I. Model Location

Due to the high viscosity of soft resin, it is recommended to avoid placing the model in the center of the platform. When placing the model, consider tilting it at a certain angle to prevent the formation of vacuum suckers.

Illustration: Two scenarios are shown. The left image depicts a model placed flat, with a red cross (❌) indicating it is 'Easy to form vacuum sucker'. The right image shows the model tilted at an angle, with a green checkmark (✔️) and text 'Tilt at an Angle', suggesting this is the preferred method to avoid vacuum suckers.

Illustration: An overhead view of a 3D printer build plate displays three models. Text advises to 'Stay away from the center of the platform, especially for printers larger than 8.9 inches', indicating optimal placement to prevent issues.

II. Supports Settings

Use heavy and massive supports with 80%-95% density and 0° vertical supports. Supports in the middle of the model should also be thick. A thin raft or no raft is recommended for easier print removal from the build plate, as F series resin adheres tightly.

III. Printing Settings

Resin printing parameters can be downloaded from the RESIONE official website under Support > Settings.

Matters Needing Attention

• Slow Lifting Speed: Ensures the model is not stretched or deformed.
• High Lifting Distance: Ensures complete separation from the FEP film.
• Long Rest Time After Retract: Ensures resin fully backflows.

4. Cleaning and Post-curing

Cleaning

Clean prints with ethanol (≥95%) or IPA. Avoid using a toothbrush. Dry prints with compressed air. A slight sticky feeling is normal. Cleaning and soaking time should not exceed 3 minutes.

Post-curing

For a 40W post-curing box, the recommended time is 10-20 minutes. Adjust time based on the power of your post-curing box to achieve a dry surface print.

Attentions for Post-curing

• Excessive post-curing time can cause warping, hardening, and brittleness.
• Prints are fragile immediately after post-curing. Allow them to rest until internal stress is released before applying force.

5. Use and Save

• Add resin as needed during printing. Filter and store remaining resin in a new, light-resistant, sealed container to prevent moisture absorption.
• Prints left on the platform for extended periods without treatment may absorb moisture and expand, making cleaning difficult. Clean carefully, dry with compressed air, and allow prints to return to their normal size.
• Resin parts harden and become brittle at low temperatures, similar to traditional plastic. Optimal performance is at 25-35°C. F series soft resins harden and lose elasticity below 20°C. F80 maintains some elasticity at low temperatures but feels stiffer. These changes are reversible.
• To maintain flexibility, store prints in a sealed bag or coat them with a soft waterproof coating.
• Do not heat and dry printed parts, as this will irreversibly harden and embrittle them.