Recommended procedure for firing Dental Cast Cherry resin.

Printing and model preparation

When creating a printable model, you should follow these recommendations:

  • The minimum wall thickness of the model must be at least 500 microns
  • The thickness of the supports must be at least 800 microns
  • The contact point of the support must be at least 500 microns
  • The speed of raising / lowering the platform must not exceed 50 mm/min
  • When placing the supports, it is necessary that the model is stable and does not have the possibility to sway and deviate during 3D printing.
  • The cement gap for temporary crowns should be set at 80-100 microns.

Subsequent processing

  • After printing, models should be washed with isopropyl alcohol or ethyl alcohol. For more thorough washing of the parts, we recommend using an ultrasonic bath, and in the case of working with a complex shaped model, wash them with a synthetic brush.
  • After washing, we recommend blowing out the complex shaped parts with compressed air.
  • Heat and cure the product according to the recommendations in the table below.
  • The model must be poured no later than 4 hours after printing, otherwise the part could be significantly deformed
Material Washing (IPA) Heating Curing
 Dental Cast  2 х 3min  80°С @30min  10min @405nm (200W)

*Recommended practices for other HARZ Labs materials can be found here

Burnout

Dental molding compounds suitable for the shock firing cycle, such as Bellavest Bego SH, must be used to burn the resin. The firing cycle should be chosen according to the mold manufacturer's recommendations, but remember that the resin is fired at 950 degrees for 50 minutes, which will be necessary to successfully remove all resin residue.