pro3dure´s generative resin GR-21 Try-In is a biocompatible Class I medical product and is suitable as a base material for try-in of digitally manufactured denture bases. GR-21 Try-In can be used for the generative production of try-in devices. Such as, denture bases with individual tooth setup in order to check bite registration and occlusion. GR-21 Try-In is available in the tooth colours A1, A2 and A3.
COMPATIBLE WITH DLP/LCD/SLA 3D PRINTERS
|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 %|
on postcuring unit)
|Elastic modulus||ca. 2000 MPa|
|Flexual strength||ca. 90 MPa|
|Elongation at break||ca. 8 %|
|Hardness:||ca. 80 Shore D|
|Storage||between 64°F/18°C and 83°F/28°C|
|Flexural Strenght||≥80 MPa||91 MPa||ISO 178|
|Flexural modulus||≥1600 MPa||2028 MPa||ISO 178|
|Elongation at break||n.a./n.a.*||8%||ISO 178|
|Shore Hardness||n.a./n.a.*||80D||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|
How to use
GR-21 Try-In bottles should be well shaked before use (fig 1).
Make sure that GR-21 Try-In material is temperature adjusted up to 23 °C to 30 °C.
Carefully pour GR-21 Try-In 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-21 Try-In 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-21 Try-In 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-21 Try-In 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-21 Try-In. It is recommended to filtrate and stir up the resin on a regular base (fig 3).
To avoid bubbles let GR-21 Try-In 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-21 Try-In 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.
- The lot number and the best before date are indicated on each GR-21 Try-In packaging. In case of claims please always indicate the lot number of the product. Do not use the product after expiry of the best before date.
Lumi Industries srl and pro3dure medical GmbH are not liable for any damages caused by improper use and application of the material. To be used on suitable devices by trained specialist personnel for the purpose indicated only.