Pro3Dure GR-19 OA: certified 3D printing resin for rigid orthodontic splints


Certified biocompatible dental 3D printing resin designed for rigid orthodontic splints. Thanks to its high rigidity, the resin can also be used for the digital production of complex orthodontic appliances. The material is available in the following colors: rose transparent, light-blue transparent and clear transparent.



Pro3dure GR-19 OA (ortho appliance) is a biocompatible 3D printing resin for additive manufacturing of rigid orthodontic splints.

The material is available in clear transparent color. Due to its high rigidity the resin can also be used for the digital production of complex orthodontic appliances.

Pro3dure generative resin GR-19 OA is a resin for for 3D-printing systems (SLA, DLP) with irradiation sources ( ≤ 405 nm) for orthodontic appliances. The formulation of GR-19 OA is optimized for the requirements of a robust production guaranteeing constant high quality. The GR-19 OA is successfully tested for biocompatibility, certainly meets all mechanical and application demands. The material can be used for build processes with layer thicknesses from 25 up to 100 μm.


Technical data

 Colour rose, light-blue, clear transparent 
 Density:  ca. 1.1 g/ml
 Viscosity  ca. 0,7 Pa s
 Elastic modulus  ca. 600 MPa
 Flexual strength  ca. 50 MPa
 Elongation at break    ca. 20 %
Post cured
on postcuring unit)
Elastic modulus ca. 1700 MPa
Flexual strength ca. 90 MPa
Elongation at break   ca. 10 %
Hardness: ca. 80 Shore D
Storage between 64°F/18°C and 83°F/28°C
Package 1 kg
Typology 405 nm





 Property Requirement  Result Standard
 Flexural strenght    ≥50 MPa        80 MPa  ISO20795-2
 Flexural modulus   ≥1500 MPa   1668 MPa  ISO20795-2
Solubility ≤ 5 µg mm¯³
0.51 µg mm¯³ ISO20795-2
Water Uptake ≤ 405 µg mm¯³ 19.5 µg mm¯³ ISO20795-2
Shore Hardness n.a./n.a.* 85D ISO 7619-1
Viscosity (23°C) n.a./n.a.* 0,7 Pa s DIN 53019-1
Biocompatibility Irritation and delayed allergies comply ISO 10993-10
Biocompatibility Genotoxicity, Carcinogenity and Reproductive toxicity comply ISO 10993-3
Biocompatibility Sustemic toxicity comply ISO 10993-11
Biocompatibility Citotoxicity comply ISO 10993-5


How to use

  • GR-19 OA bottles should be well shaked before use (fig 1).

  • Make sure that GR-19 OA material is temperature adjusted up to 23 °C to 30 °C.

  • Carefully pour GR-19 OA into the vat of the image projection unit (fig 2).

  • Bubbles can be removed with a cleaned spatula or by a recoater routine.

  • If it is possible, always store a bottle GR-19 OA in your production unit in order to avoid temperature differences during refilling.

  • For the build parameter adjustment please refer to the machine data sheet.

  • After the build process is finished a direct post treatment is recommended.

  • If this cannot be guaranteed leave the produced objects in the liquid GR-19 OA resin.

  • After cleaning of the parts with isopropanole ≥ 97 % (approx. 3-5 min. in an ultrasonic bath) the objects are postcured in an adequate light curing unit in a protective gas atmosphere.

  • The dental objects generated out of the generative resin GR-19 OA can be coated and repaired as usual.

  • Impurity due to operation mistakes cannot be excluded. With respect to the low viscosity of the resin it is possible to filtrate the GR-19 OA. It is recommended to filtrate and stir up the resin on a regular base (fig 3).

  • To avoid bubbles let GR-19 OA rest for 1 hour before usage.


  • To avoid detrimental effects on material quality do not expose the liquid material to irradiation under any circumstances.

  • Deviations from the described manufacturing process may lead to different mechanical and optical properties of the GR-19 OA material.

  • Ensure personal protective gear during processing.

  • Caution: Polymerised resins are chemically resistant -avoid stains on clothing.

  • Avoid any contact with skin and eyes. In case of accidental contact, rinse with adequate running water, consulting a doctor if necessary.





Learn more                MSDS

Safety notice

The company I.D.M di Marin Davide is not a manufacturer of medical materials or devices. The material sold on this site is neither produced nor controlled by the company I.D.M. di Marin Davide, who in no case can be held responsible for any damage caused by use or application of the material, which must only be used on suitable machines and by specialized personnel, exclusively for the purpose indicated, according to the manufacturer’s instructions. For resins with European certification, the properties of the finished product vary according to the entire printing and post-curing process; refer to the manufacturer for any information about it.



Additional information

Weight 1.5 kg
Dimensions 10 × 10 × 30 cm



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