July 05, 2025

Print a Model Every 49 Seconds With Fast Model Resin Formulated for Industry-Leading Speed and Accuracy

Models for thermoforming on a build platform

Printing 11 models in just nine minutes is now possible with the Form 4B 3D printer and the newly developed Fast Model Resin. This innovation marks a significant leap in efficiency for dental professionals who rely on rapid prototyping and thermoforming.

Our team of material scientists worked closely with the Form 4B release to co-develop materials that push the boundaries of speed, accuracy, and resolution. Fast Model Resin is engineered to deliver fast print times without compromising on quality. By integrating resin development with hardware and software, Formlabs ensures optimal performance and workflow efficiency, making it ideal for high-volume dental applications.

Request a Free Sample Part
3D printed arches
SAMPLE PART

Request Free Thermoforming Models

Curious about the results? We’ll send you two dental models, both printed in Fast Model Resin. One will be printed at the 160 µm Fast Arch setting for maximum speed, and the other at the 100 µm setting for a smoother finish. Compare them and see the difference for yourself.

Request a Free Sample Part

Speed and Accuracy

“I can print models in less than 10 minutes. That means this is approaching the point where models can be printed almost as fast as we can scan a patient.”

Dr. Christopher Baer, DMD, Baer Dental

two models, one in lighter, more matte Fast Model Resin and one in a darker grey, less detailed Draft Resin

The aesthetics of Fast Model Resin (top) were notably improved, with printed parts appearing more opaque and matte than Draft Resin (bottom).

Dental professionals need a material that balances speed with precision for thermoforming. Fast Model Resin delivers exactly that. It allows for quick printing without sacrificing the accuracy required for proper fit and function of the final appliance.

On the Form 4, you can print 11 models in just 9 minutes. Post-processing is also streamlined—five minutes of washing and five minutes of room temperature curing. This makes continuous printing highly efficient, allowing over 60 arches to be produced in an hour.

Layer height / setting 100 μm 200 μm 160 μm Fast Arch
+/- 100 μm tolerance 97.6 94.7 97.9
+/- 50 μm tolerance 77.7 70.6 80.7
Orientation on build platform Flat or vertical Flat or vertical Flat only
Print time for a full build platform of 11 models (min) 22 9 9

While 100 μm offers the highest level of detail, the 160 μm Fast Arch setting provides an excellent balance of speed and accuracy, making it ideal for most orthodontic applications. However, the best choice depends on the specific case and patient needs.

Putting Fast Model Resin to the Test

Fast Model Resin was tested by dental professionals in labs and practices. Feedback showed that users adjusted layer settings in PreForm based on their workflow needs, achieving the perfect balance of speed and accuracy.

Grey model and green model showing accuracy

Parts printed with Fast Model Resin at 160 μm layer height have 97.9% of the surface within 100 μm of the CAD model.

Stephan Kreimer, a master dental technician, says, “The 160-micron Fast Arch setting is great for quick models. I can produce them in under 30 minutes, including post-processing.” Even at such speeds, the accuracy remains high—97% of the surface is within 100 microns of the CAD model.

Dr. Christopher Baer uses 100 μm for complex cases, as it offers better fit for patients with intricate tooth structures. He finds Fast Model Resin especially useful for chairside procedures and aligner production, such as repairing broken bonding in a single visit.

Production-Optimized Workflow

With Fast Model Resin, not only is print speed faster, but post-processing is also more efficient, creating a streamlined workflow that’s easy to adopt.

Dental professional using an intraoral scanner to scan a patient
1. Scan

Use an intraoral scanner or a desktop 3D scanner to capture the patient's dentition.

Aligner scan in 3shape
2. Design

Import your scans into CAD software and design the model, exporting it as STL or OBJ.

3 Form 4B printers
3. Print

In PreForm Dental, select your material and print settings. Orient the parts directly on the build platform or vertically if needed.

Upload the file, insert the resin tank, Fast Model Resin cartridge, and clean build platform into the printer.

Formlabs post-processing solutions
4. Post-Process

Remove the printed parts from the build platform and wash them in 99% IPA for five minutes. Adjust wash time based on part geometry and solvent purity.

Cure the parts for five minutes at room temperature. If supports were used, remove them afterward.

Thermoforming a clear aligner
5. Thermoform

Use a dental thermoformer to create the appliance from the printed model. Always start with the recommended settings for your equipment and material.

Cut out and finish the appliance as needed.

Read the Application Guide
Four Form 4 resin containers
Webinar

Formlabs Dental Materials Overview: Discover What You Can Print With the Form 4B

This webinar will guide you through the various benefits and applications enabled by Form 4B, including its existing biocompatible materials and newly developed formulations for model production such as Fast Model Resin and Precision Model Resin.

Watch the Webinar

Mechanical Properties

Fast Model Resin was designed to offer not only speed but also strong mechanical properties. Compared to its predecessor, Draft Resin, Fast Model Resin is stronger, stiffer, and more resistant to fracture. These qualities make it ideal for thermoforming applications.

Fast Model Resin Draft Resin
Ultimate Tensile Strength 55 MPa 36 MPa
Tensile Modulus 2.48 GPa 1.7 GPa
Elongation at Break 15% 5%
Flexural Strength 98 MPa N/A
Flexural Modulus 2.60 GPa 1.8 GPa
Notched Izod 30 J/m 29 J/m

Data for parts post-cured five minutes at ambient temperature.

Download the Technical Data Sheet
The base and touchscreen of the Form 4B dental 3D printer showing the time remaining for a print
Webinar

Three Workflows to Produce Clear Aligners In-House: More Options for You and Patients

3Shape and Formlabs experts will take you through three flexible workflows from an intraoral scan to clear aligners.

Watch the Webinar

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