Custom Tray dental resin View larger

Custom Tray dental resin - FormLabs



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249,00 €
249,00 €

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Resin oriented to the direct manufacture of robust and precise dental impression trays.

FormLabs Dental Resins are specialized materials for the dental field, where the use of this type of technology is increasingly present. The dental resins allow the production of models of crowns and bridges, surgical guides, splints and retainers with incredible accuracy, with a maximum deviation of ±100 microns, and with very low material costs per element (1.4 - 3.3 €), which amortizes the use of the printer with any of the dental resins in a few months.

Formlabs' wide range of dental resins allows dental practices and laboratories to quickly manufacture a variety of dental products in their own facilities, from biocompatible surgical guides and splints to models for fixed prostheses and clear aligners.

Formlabs has developed the Custom Tray resin, a biocompatible material for directly printing dental impression trays for implants, prostheses, crowns and bridges, as well as other more complex applications. Digitally manufactured dental impression trays provide robust and accurate impressions for high quality dental service.

Custom Tray

Image 1: Print tray printed with Custom Tray Font: Formlabs.

Custom Tray is a fast printing material that allows the use of layer heights up to 200 microns, thus reducing working time and achieving higher performance.

This resin is not compatible with Form 3. To use the Custom Tray resin and carry out the printing process optimally, the following materials and devices must be used:

The manufacturing process with the Custom Tray resin is the following:

1. Scanning: To begin, the patient's anatomy must be scanned. In this way, a digital impression of the patient's anatomy will be obtained, on which to work and create a custom tray.

2. Design: Different dental software is available to digitally design custom impression trays. One of them is ZirkonZahn.Tray; a free dental CAD software for designing custom trays that integrates with FormLabs Preform Software.

3. 3D printing: To print the digitally designed file, you must import it from Preform, select the material to be used, and modify the different options offered by the Software regarding orientation, supports, etc.

4. Post-processing: First, the parts must be removed from the construction platform. Then, the parts must be washed, dried and cured according to the parameters indicated in the "Specifications" section. Finally, the supports must be carefully removed and any areas where the supports have left any uneven areas must be polished with a hand motor.

5. Cleaning and disinfection: Finally, the parts must be cleaned and disinfected. After cleaning, look for cracks in the workpiece. If any cracks are found, the workpiece must be discarded immediately. A proven method for disinfection is to immerse the parts in a solution with 70% IPA alcohol for 5 minutes. After disinfection, the part should be re-inspected for cracks.

To download the complete printing guide, go to "Downloads".

Thus, the Custom Tray resin is a biocompatible material, designed to be used in a wide variety of applications in the dental industry.

To ensure the biocompatibility of Custom Try resin, the use of dedicated tanks, construction platform and finishing kits are required and should only be used with this and other biocompatible Formlabs resins.

Elongation at break (%) 3.2
Tensile strength (MPa) 74
Tensile modulus (MPa) 2900
Flexural strength (MPa) 110
Flexural modulus (MPa) 2700
Surface hardness 8
Medical use Medical use
Hide color variations (Hide color variations)

Here below, a series of usage tips that must be taken into account at all times with the use of FormLabs resins are cited:

Change cartridge

Changing the resin cartridge of the FormLabs printers is very simple, just close the top cap of the ventilation duct (vent) and remove the cartridge by holding it by the handle it has. Then the other is inserted and the vent plug is opened in case an impression is to be started. To avoid drips through the 3D printer, this process must always be carried out with the resin tank mounted.

Tapón de ventilación FormLabs

Imagen 1: Tapón de ventilación de los cartuchos de FormLabs. Fuente: FormLabs

Después de terminar cada impresión se debe cerrar el tapón superior para que la resina mantenga sus propiedades. Además, en caso de no utilizar la impresora durante algún tiempo, se debe guardar el cartucho en su caja original para mantener las propiedades de la resina intactas.

Resin tank

Each type of resin should have its own resin tank, which should be changed after using 2L of resin. The Custom Tray resin is compatible with the LT resin tank and the Form 3 V2 resin tank.

Tanque de Resina LT de FormLabs

Image 2: FormLabs Resin Tank LT. Source: FormLabs

To protect and store the excess resin in the tank after each printing, FormLabs supplies a lid that ensures a perfect closure. Once the tank is closed, it is recommended to store it (with resin and lid) in the original box so that the resin doesn't lose its properties when exposed to UV rays for a long time. Another point to keep in mind is that the tanks can't be cleaned with any cleaning product or similar (for example, isopopyl alcohol), since they lose certain qualities that can cause continuous failed impressions.

Failed printing

When an error occurs in printing may be because solid parts of a previous printing have fallen to the resin tank. In this case, a spatula at 45° must be passed through the printing tank, gathering all the solid parts in a corner and removing them. To ensure that the tank resin doesn't contain any solid parts, the resin should be cast with a 190 μm paper filter. Once cast, it is put back into the tank and it is ready to be used again.

Video 1: Clean resin tank. Source: FormLabs

Isopropyl alcohol

Isopropyl alcohol is the key to the washing and post-processing of parts and you should know when it is time to change it. In the Finish Kit the moment to change it's when the IPA (Isopropyl Alcohol) is so saturated with resin particles, that after washing the pieces are still sticky. At that point you must remove all the liquid, clean the container well and throw new IPA, but never fill in on the previous one.

Finish Kit FormLabs

Image 3: Finish Kit FormLabs. Source: FormLabs

In the Form Wash, the wash center itself indicates through its screen when it is time to change the isopropyl alcohol.

Video 2: FormLabs Ecosystem. Source: FormLabs

If you wish you can hire our SLA 3D printing training courses (online or in person) by contacting us through the contact form. The training is oriented to obtain a wide knowledge and know how to use the 3D SLA FormLabs printers from the beginning and thus avoid major errors.

General information
Manufacturer FormLabs (Massachusetts, USA)
Technology  SLA / LFS
Material Photopolymer
Wavelength UV 405 nm
Format 1 liter
Compatible 3D printers Form 2Form 3B
Compatible resin tanks Form 2 LTForm 3
Print setting
200 microns 
Exposure Time It is not necessary to configure the printing parameters in the Formlabs printers. The chip incorporated in the resin cartridges detects the type of material by configuring the printing automatically.
Off time
Lifting height
Bottom exposure
Bottom layers
Curing and washing properties
Washing time (FormWash) 10 min.
Curing time (FormCure) 30 min./ 60º C
Mechanical properties (without curing / with curing)
Izod impact strength (ASTM D256-10) -
Charpy impact strength -
Elongation at break (ASTM D 638-10) 3.2%
Tensile strength (ASTM D 638-10) 74/80 MPa
Tensile Modulus (ASTM D638-10) 2900/2999 MPa
Flexural strength (ASTM D 790-15) 110 MPa
Flexural modulus  (ASTM C790-10) 2700/2700 MPa
Surface hardness (ASTM 2240) 82 D
Thermal properties (without curing / with curing)
Softening temperature (ASTM D 648-16 / @ 0.45 MPa) -
Additional Information
Lifetime (since manufacturing) 24 months
HS Code 2916.1

* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend confirming the results and final properties with own tests. For more information you should consult the technical data sheet of the product.


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