Technical data

Colour 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 material (depends 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

Package 1 kg

Typology 405 nm

Specification

Property Requirement Result Standard

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 comply ISO 10993-10

allergies

Biocompatibility Genotoxicity, Carcinogenity and comply ISO 10993-3

Reproductive toxicity

Biocompatibility Sustemic toxicity comply ISO 10993-11

Biocompatibility Citotoxicity comply ISO 10993-5

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.

Important

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.