Stratasys J850 Manual page 125

After printing models, you should allow them to cool as much as possible
before handling them. If additional models do not have to be produced on the
printer, it is best to let the printed models cool in the printer, with the cover
closed, as long as possible.
1. Let the printed models cool on the build tray for at least 10 minutes.
2. Very carefully, remove the models from the tray with a scraper or spatula
(supplied in the tool kit), taking care not to pry or bend the model.
3. Place the models on a flat surface, and cover them with a cardboard box
or paper hood.
This allows the models to cool slowly and evenly.
4. Let the models cool for several hours.
After printed models have cooled, the Support material must be removed.
This can be done by different methods, depending on the type of Support
material, the size of the model, how delicate it is, the amount and location of
the Support material, and other factors. The methods described in this
section refer to removing general-purpose Support materials from models, for
most printing applications. Use this information as a guide, and adapt the
methods (or a combination of them) for cleaning your models.
There are two types of Support material available:
• SUP705 (FullCure705), a gel-like Support material.
• SUP706, an easily removed Support material that dissolves in a solution of
caustic soda and sodium metasilicate.
SUP705 (FullCure705) and SUP706 can be removed from printed models
using the following methods, in this order:
1. by hand
2. water pressure (in a suitable cleaning unit)
3. SUP705: 1% caustic soda solution (recommended for a smooth finish)